GOST pvc pipes for external and internal sewerage. Advantages of PVC sewer pipes

Sewerage, along with electricity, heating, cold and hot water supply, is one of the main engineering networks that provide the improvement of residential, industrial and public buildings, as well as the territories adjacent to them. At the heart of each system of disposal of domestic, industrial and surface drains are networks of sewer pipes. They are made from materials such as:

• steel;
• cast iron;
• concrete;
• ceramics;
• asbestos cement;
• polymers - PVC, HDPE, PVD.

Each of the listed materials has its own advantages, but in their totality sewer pipes made of PVC and other polymers are unrivaled. They appeared much later than other types of these products, but quickly won recognition from all categories of developers. In new sewer networks, PVC sewer pipes are increasingly used for internal and external sewage.

Advantages of PVC sewer pipes

When choosing materials for the installation of engineering networks, special attention is paid to their advantages, which allow you to get the best result with a relatively small investment of time, effort and money. In this sense, PVC sewer pipes have undoubted advantages:

• PVC is a chemically inert material, which provides it with high resistance to aggressive liquids and external influences;
• such products have a minimum weight in comparison with analogues from other materials, which allows the installation of PVC sewer pipes without the involvement of heavy special equipment;
• the range of polymer pipes is fully compatible with similar products made of steel, cast iron, concrete, etc., which allows you to connect to existing sewerage networks;
• the full range of these products includes plumbing pipes and PVC adapters for sewerage: couplings, tees, ordinary and saddle bends, plugs, adapters for assembling a drainage system;
• the inner surface of polymer pipes does not accumulate deposits, which minimizes the risk of blockages;
• networks of plastic pipes withstand soil movements well without compromising the tightness of the connections.

The characteristics of PVC pipes for sewerage guarantee them a long service life - at least 50 years in the most severe operating conditions. The main disadvantages of such products are the impossibility of their use in pressure networks and low resistance to heat. The temperature of the drains for them should not exceed 45 ° C.

PVC pipes for outdoor drain systems

The production of PVC sewer pipes is regulated by two regulatory documents. In the order of product numbering, PVC pipes for sewerage according to GOST 32412-2013 for systems for internal drainage of wastewater from buildings are the first. The document came into force at the beginning of 2015, it sets out all the requirements that these products must meet, including their assortment. We summarized the dimensions of PVC pipes for sewerage and their other main characteristics in the following table:

Types of pipes	Nominal diameter of PVC sewer pipes by outer measurement	Wall thickness (ranges)	Product effective length
Straight with and without chamfers	32–315 mm, 12 sizes in total	3-3.5 to 6.2-7.1 mm, 5 thicknesses
With O-ring socket, type S I	32–200 mm, 10 sizes	3–3.5; 3.2-3.8 and 3.9-4.5mm
Same type S II		3–3.5 to 6.2–7.1 mm
Same type M		3-3.5 and 3.2-3.8mm
Same type L		3–3.5; 3.2-3.8 and 3.9-4.5mm
With socket for adhesive bonding		3–3.5 to 6.2–7.1 mm

All dimensions of PVC sewer pipes for internal sewerage, except for the effective length, are regulated by GOST 32412-2013. The length of the products is determined by the manufacturer himself or by agreement with the customer of the product. If you look at the photo in the catalog of sewer pipes, you can easily identify products for internal networks. They are grey. Among the normalized characteristics are also the diameter, wall thickness and length of the sockets, but only the diameter and wall thickness of the pipes are indicated in the product marking.

In addition to two technical characteristics, the product designation indicates the trade mark and / or name of the manufacturer, as well as the month and year of manufacture. The summary table of sizes of PVC sewer pipes given by us is compiled on the basis of GOST 32412-2013, but in itself this information is scattered throughout the text of the document.

Speaking about the length of sewer pipes, one should remember about pressure PVC pipes according to GOST R 51613-2000 for transporting liquids and gases. This is a closely related product and has pipe length requirements. The value of this indicator is 4-12 m and changes in increments of 0.25 m. Manufacturers of sewer pipes most often adhere to the same rules, but they also make pipes less than four meters long.

PVC pipes for outdoor sewerage and surface drains

The consumer should be aware that the orange PVC sewer pipes are intended for outdoor sewerage networks. Orange and brown-orange colors for them are specified in GOST 32413-2013. This equally applies to the gray color of PVC pipes for internal sewerage, which is recommended in GOST 32412-2013. Different colors provide easy product identification.

Both GOSTs were prepared and put into effect at the same time. They are very similar to each other, including having an identical structure. PVC sewer pipes according to GOST 32413-2013 differ not only in color. We have collected their characteristics in a summary table:

Varieties	Nominal outer diameter	Wall thickness (ranges)	Product effective length
Straight with and without chamfers class SN 2 SDR 51	160 – 1,000 mm, 13 sizes in total	3.2-3.8 to 19.6-21.8 mm, 13 thicknesses	Measured from end to end of the pipe
The same class SN 4 SDR 41	110 – 1,000 mm, 15 sizes	3.2-3.8 to 24.5-27.2 mm, 14 thicknesses
The same class SN 8 SDR 34	110–800 mm, 13 sizes	3.2-3.8 to 23.4-26.8 mm, 13 thicknesses
With a socket for a conventional sealing ring	110–1000 mm according to the dimensions of straight pipes of the corresponding classes	The wall thickness corresponds to the standard dimensions of straight pipes, taking into account their class	Measured from the end to the start of the socket at the highest point
With socket for O-ring	110–710 mm according to the dimensions of straight pipes of the corresponding classes
With socket for gluing	110–200 mm according to the dimensions of straight pipes of the corresponding classes

You will find all sizes of PVC sewer pipes in the catalog in the GOSTs mentioned here. The first column of both tables with types of products gives a hint on how to connect PVC sewer pipes to each other. For this, glue, special couplings for straight pipes and the elastic properties of sealing rings are used.

Please note that PVC sewer pipes 110 mm in diameter are the initial size for external networks. Pipes of smaller diameters are used for internal sewerage systems. External and internal pipes of the corresponding standard sizes are completely compatible among themselves.

Fittings for drainage networks made of PVC pipes

For the installation of drainage systems, in addition to pipes, fittings are needed to assemble individual elements into a single network. The range of fittings is presented in GOST 32412-2013 and GOST 32413-2013. It includes:

• bends with bending angles of 15, 30, 45, 67.5 and 87.5–90 degrees;
• sliding and socket couplings;
• adapters from larger to smaller pipe diameters;
• tees of ordinary and transition type with third-party connection angles of 45, 67.5 and 87.5-90 degrees;
• saddle branches and plugs to pipes of the external sewerage.

Fittings are made for socket and push-on connections, including in various combinations. For example, a 200 mm socket type PVC outdoor sewer pipe can be connected to a straight product, including larger or smaller sizes. The marking of fittings indicates their main characteristics:

• for a regular tee - the nominal diameter and the angle of the connection;
• for adapters and transition type tees - all connecting dimensions and connection angle;
• for fittings, the designation of the pipe class, for example SDR 41, as well as the name of the part (coupling, tee, etc.) are added to the marking for external networks.

The methods of marking pipes and fittings are identical - relief embossing or printing with indelible paint. The certificate for PVC sewer pipes confirms that they are made from raw materials of the proper quality, passed tests during acceptance for tightness, impact strength and other parameters.

Other types of PVC pipes for drainage

The latest polymer product to enter the market was corrugated PVC pipe for sewerage. It is made in accordance with GOST R 54475-2011. A corrugation, or a structured wall, can be annular, spiral and longitudinal, with hollow and solid ribs (sections), with smooth outer and inner surfaces (type A), with a corrugated top (type B).

Corrugated pipes are designed for non-pressure external sewerage networks. Their assortment includes pipes of the DN / ID series with a diameter of 100 - 2,400 mm and DN / OD - 110 - 1,200 mm. The range of pipes includes products of classes SN 2, SN 4, SN 8 and SN 16. Products of the heaviest class allow laying sewerage at a depth of up to 50 m underground. Corrugation enhances the resistance of pipes to the transport of liquids heated to 79 ° C.

If you have questions, call the toll-free number 8-800-250-4337 or you can Request a call and our managers will contact you.

STATE STANDARD OF THE UNION OF THE SSR

Non-compliance with the standard is punishable by law

This standard applies to pipes and fittings for them (hereinafter referred to as products) made of low pressure polyethylene (HDPE) and high pressure polyethylene (LDPE) intended for internal sewerage systems of buildings with a maximum waste fluid temperature of 60 ° C and short-term (up to 1 min. ) 95 °С.

1. MAIN PARAMETERS AND DIMENSIONS

The main parameters and dimensions of pipes and fittings are in accordance with GOST 22689.1.

2. TECHNICAL REQUIREMENTS

2.1. Polyethylene sewer pipes and fittings for them should be manufactured in accordance with the requirements of this standard, as well as the standard for the design of these products, according to technological documentation and working drawings approved in the prescribed manner. 2.2. Characteristics 2.2.1. The melt flow index, determined from the material of the finished products, should not exceed 2 g/10 min. 2.2.2. The surface of pipes and fittings must be even and smooth. On the outer surface of the products, traces from the forming and calibrating tools of no more than 0.5 mm are allowed. The height of the protrusions after the removal of the sprues should not exceed 2.0 mm. Color of products - black. 2.2.3. The thread on the fittings must be of a full profile, without torn and underformed threads and ensure the screwing of manually connected parts. Interrupted threads are only allowed on union nuts. 2.2.4. Rolling pipes into coils is not allowed. Deviations from straightness of pipes are not regulated. 2.2.5. When testing pipe specimens for tension, the yield strength and relative elongation at break must correspond to those indicated in Table 1.

Table 1

Note. Tensile yield strength standards are optional. 2.2.6. The change in the dimensions of the pipes in the longitudinal direction after their heating should be no more than 3%. 2.2.7. Shaped parts during their heating in a boiling 20% ​​solution of OP-10 substance according to GOST 8433 for 30 minutes should not have bubbles, shells and cracks penetrating deeper than 20% of the wall thickness. 2.2.8. Pipes and fittings should not crack when heated for 24 hours in a 20% solution of OP-10 according to GOST 8433 at a temperature of (80 ± 3) °C. 2.2.9. Connections of pipes and fittings must be tight when tested with an internal hydrostatic pressure of 0.1 MPa (1 kgf / cm 2 at an ambient temperature of (15 ± 10) ° C. 2.3. Requirements for raw materials, materials and components 2.3.1. Pipes and fittings should be made of HDPE with a melt flow rate determined in accordance with GOST 16338, and LDPE with a melt flow index determined in accordance with GOST 16337, within 0.25-1.5 g / 10 min, containing 1.5-2, 5% carbon black and providing quality indicators in accordance with the requirements of this standard, in particular: 79 and 273-80 of the highest and first grades; 2) from granulated high-density polyethylene according to GOST 16337 grades 102-10, 102-12, 102-14, 106-10, 106-12, 106-14, 153-10, 153-12, 153-14, 176-10 , 176-12 and 176-14 of the highest and first grades. Amendment. IUS 11-90. 2.4. Completeness 2.4.1. Fittings intended for connection with rubber sealing rings must be supplied complete with them, and for connection with union nuts and rubber sealing gaskets - with nuts and gaskets specified in GOST 22689.2, in quantity depending on the type of execution. Quantity components of a rubber product must exceed by 3% the number (in pieces) of the sockets of the fittings. 2.5. Marking 2.5.1. Each pipe must have a marking, which is made on its surface with a heated metal stamp with an interval of no more than 4 m, and must contain: the name or trademark of the manufacturer and the symbol of the product without the word "pipe". 2.5.2. Alphanumeric marking of fittings is carried out on their outer side during the production process. Additional marking is allowed in accordance with the working drawings. 2.5.3. Each package must be marked with a transport marking in accordance with GOST 14192 indicating the main, additional and information inscriptions, handling signs "Afraid of heating", "Slinging place" (when shipped in boxes or containers). 2.5.4. Each package must be affixed with a label made of cardboard, plywood or film-coated paper containing the following data: name of the manufacturer; symbolic designation of the product; batch number and date of manufacture; the number of products in the package in pieces (meters) or kilograms. When packing several batches of products in one container, the number of labels must be equal to the number of packed batches. When transporting cargo in open vehicles, by rail or water, labels made of cardboard and non-waterproof materials are not allowed. 2.6. Packaging 2.6.1. Packing of pipes and fittings must be carried out in accordance with the requirements of this standard and according to the technical documentation approved in the prescribed manner. Packaging should ensure the safety of products and the safety of loading and unloading operations. 2.6.2. Pipes must be formed into packages or block packages weighing up to 5 tons in accordance with GOST 23238 and GOST 21929. 2.6.3. Packing equipment - in accordance with GOST 21650. Packing of pipes transported to the Far North - in accordance with GOST 15846. 2.6.4. When transported by rail, fittings are packed in tight boxes in accordance with GOST 2991 or GOST 18573. When transported by other modes of transport, packaging in crates in accordance with GOST 12082, in paper bags in accordance with GOST 2226, in bags of polyethylene film in accordance with GOST 10354 with a thickness of at least 0 .1 mm or other material that ensures the safety of products. It is allowed to pack in wooden boxes and crates that were in use with the obligatory removal of the existing stickers, gluing or painting over the inscriptions. For the transportation of pipes and fittings, specialized containers can be used according to the normative and technical documentation. 2.6.5. Component parts are packed in bags in accordance with GOST 17811, GOST 18225, GOST 2226 or boxes in accordance with GOST 13841 with a gross weight of not more than 50 kg. It is allowed to transport components in bundles up to 1000 pieces.

3. ACCEPTANCE

3.1. Pipes and fittings are accepted in batches. A batch is considered to be the number of pipes of the same size (in meters), made from the same grade of raw materials and on the same production line under steady state conditions, or fittings manufactured under the same conditions and on the same equipment, handed over at the same time and accompanied by one quality document. The size of the batch of pipes must be no more than 10,000 m for pipes with a diameter of up to 50 mm and no more than 5,000 m for pipes of other diameters. The batch size of fittings must be no more than 1000 pieces. 3.2. The quality document must contain: name and (or) trademark of the manufacturer; conditional designation of products; lot number; lot size; mark of the technical control department; date of manufacture. 3.3. To check the compliance of pipes and fittings with the requirements of this standard and the requirements of standards for the design and dimensions of products, acceptance and periodic tests are carried out in the amount and quantity indicated for pipes in Table. 2, and for fittings - in table. 3. For testing, products are selected from the batch by random selection. Products that have been tested according to pos. 3-6 tab. 2 and pos. 4-6 tab. 3, are not subject to sending to the consumer.

table 2

Controlled parameter	Type of test
	acceptance	periodical
			technical requirements	control methods
1. Appearance, marking					0.5%, but not less than 3 pcs.
2. Dimensions
3. Elongation at break
4. Dimensional change in the longitudinal direction after warming up
5. Resistance to cracking in OP-10 solution
7. Packing

Note. The sign "+" means the applicability, the sign "-" - the inapplicability of indicators.

Table 3

Controlled parameter	Type of test		Clause number of this standard		Sample size from the lot, pcs.
	acceptance	periodical
			technical requirements	control methods
1. Appearance, marking
					0.5%, but not less than 3 pcs.
2. Main dimensions					0.5%, but not less than 5 pcs.
3. Checking the screwing of threaded parts					At least 5 pcs.
4. Resistance to cracking in OP-10 solution at temperature, С:
5. Tightness of connections
6. Melt flow index
7. Packing

Note. The sign "+" means the applicability, the sign "-" - the inapplicability of indicators. 3.4. The quality of pipes and fittings is checked no earlier than 15 hours after the end of the production of the accepted batch. 3.5. During acceptance tests, the main dimensions of the products are controlled. The remaining dimensions must be provided by the molding equipment accepted for production, which is controlled upon acceptance. If the appearance and dimensions of at least one product do not comply with the requirements of this standard, acceptance is carried out piece by piece. 3.6. If, during acceptance tests, at least one sample does not meet the requirements of this standard for any indicator (except for appearance and dimensions), then a second check is made for this indicator on a double number of samples taken from the same batch. In case of unsatisfactory results of the re-inspection, the batch of products is not subject to acceptance. 3.7. The consumer has the right to check any quality indicator, observing the above sampling procedure and applying those specified in sec. 4 test methods. 3.8. Periodic tests are carried out once a year on all types and sizes of manufactured products. Pipes and fittings for periodic testing are selected from batches that have passed acceptance tests. If the results of periodic tests of at least one sample are unsatisfactory, repeated tests are carried out on a double number of samples taken from the same batch. Upon receipt of unsatisfactory results of repeated tests, the batch of products is not subject to acceptance. 3.9. Before starting the production of products from new compositions of raw materials or when changing technological modes, the manufacturer is obliged to conduct type tests. Type tests are carried out at all points of acceptance and periodic tests on at least five samples selected by random selection. In the manufacture of a new tooling or after repair of the forming elements of the tooling, dimensional control is carried out according to the working drawings.

4. CONTROL METHODS

4.1. The appearance and quality of the surface of pipes and fittings is checked visually without the use of magnifying devices by comparing the controlled product with a standard sample approved in the prescribed manner. The screwing is checked manually. The height of the protrusion after removing the sprue (clause 2.2.2) is measured with a caliper according to GOST 166 with an error of ± 0.01 mm. Amendment. IUS 11-90. 4.2. Determining the dimensions of pipes and fittings (clause 2.1) 4.2.1. Measuring instruments: caliper in accordance with GOST 166 with a measurement error of ± 0.05 mm; micrometer according to GOST 6507; caliper indicator according to GOST 868; gauges or templates verified or certified in the prescribed manner; wall gauge according to GOST 11951 or other measuring instruments with a measurement error of ± 0.02 mm. 4.2.2. Carrying out measurements 4.2.2.1. Measurement of the outer diameter of pipes and smooth ends of fittings is carried out on products in two mutually perpendicular sections at a distance of at least 25 mm from the end. For the average outer diameter take the arithmetic mean of the measurement results. 4.2.2.2. The wall thickness of pipes and fittings is measured with a micrometer or wall gauge from both ends of each pipe or from the end of the smooth end of the fitting at least at four points evenly distributed around the circumference, at a distance of at least 25 mm from the end, for pipes - at least 100 mm from the end . 4.2.2.3. The inner diameter of the sockets on a smooth section is measured with an indicator inside gauge. It is allowed to use other instruments that provide the necessary measurement error. 4.2.2.4. The inner diameter of the groove of the socket of the fittings in the installation area of ​​the rubber sealing ring is determined with a caliper or a special measuring tool. 4.3. The tensile yield strength of pipes and their relative elongation at break (clause 2.2.5) are determined according to GOST 18599 on sample blades of type 1 according to GOST 11262. 4.4. The change in the dimensions of the pipes after their heating (clause 2.2.6) is checked in accordance with GOST 18599. The heating temperature of pipes made of HDPE (110 ± 2) ° С, pipes made of LDPE (100 ± 2) ° С. 4.5. When checking the resistance of fittings to the effects of surfactants (clause 2.2.7), the samples are placed in a bath with a boiling 20% ​​solution of the substance OP-10 according to GOST 8433 and kept in it for 30 minutes. A weight (lead or other inert material) is attached to the samples to prevent them from floating. Upon completion of the tests, the samples are cooled in air to room temperature, washed with running water and wiped with a soft cloth, then subjected to visual inspection. The surface quality is checked for compliance with the requirements of clause 2.2.7. If it is necessary to determine the depth of penetration of cracks, the samples are sawn across the direction of the defect, and the measurement is made with a caliper. 4.6. When checking the resistance of pipes and fittings to cracking (clause 2.2.8), the test samples are placed until completely immersed in a 20% solution of the substance OP-10 according to GOST 8433 heated to a temperature of (80 ± 3) ° C in water and kept at this temperature for 24 h, after which they are cooled in air to room temperature. For pipes with a diameter of 40 and 50 mm, the length of the samples should be 150 mm, for pipes with a diameter of 90 and 110 mm - 350 mm. Samples are considered to have passed the test if no defects and cracks according to clause 2.2.7 are found on their surface during visual inspection. 4.7. The tightness of the joints of pipes and fittings (clause 2.2.9) is checked on a certified stand according to the methodology agreed with the base organization and approved in the prescribed manner. 4.8. To determine the melt flow rate (clause 2.2.1), ring samples are cut out of the pipe or fitting, which are then cut into pieces with side dimensions of not more than 7 mm. The determination procedure must comply with GOST 16337 for LDPE and GOST 16338 for HDPE.

5. TRANSPORT AND STORAGE

5.1. Pipes and fittings are transported by any means of transport in accordance with the rules for the carriage of goods and the technical conditions for loading and securing goods in force on this type of transport. Transportation should be carried out with the maximum use of the capacity of the vehicle. 5.2. Pipes and fittings should be stored in unheated warehouses in conditions that exclude the possibility of mechanical damage, or in heated warehouses no closer than 1 m from heating devices, and they must be protected from direct sunlight and precipitation.

6. INSTRUCTIONS FOR INSTALLATION

6.1. The connection of pipes and fittings in the manufacture of risers and wiring, as well as the installation of internal sewage systems should be carried out in accordance with the requirements of technical specifications, building codes, rules and instructions approved in the prescribed manner.6.2. Pipes and fittings can be interconnected in the following ways: using a rubber O-ring; socket-butt welding with a heated tool; by means of a union nut with a rubber seal. 6.3. To make welded joints, pipes and fittings made of polyethylene of the same type should be used. Welding of LDPE pipes or fittings with HDPE pipes or fittings is not allowed. 6.4. Estimated service life of products - 25 years.

7. MANUFACTURER WARRANTY

7.1. The manufacturer guarantees the conformity of pipes and fittings to them with the requirements of this standard and the relevant standards for the design and dimensions of these products, subject to the rules for transportation and storage established by this standard. 7.2. Guaranteed shelf life - 3 years from the date of manufacture. Warranty period of operation - 2 years from the date of putting the products into operation, within the warranty period of storage, subject to the rules of installation and operation.

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the State Construction Committee of the USSR DEVELOPERS O.P. Mikheev, Ph.D. tech. sciences (topic leader); IN AND. Feldman, Ph.D. tech. sciences; L.P. Zhabrova; N.G. Kulikhin; A.N. Afonin, Ph.D. tech. sciences; R.F. Lokshin, Ph.D. tech. sciences; S.V. Ekhlakov, Ph.D. tech. sciences; I.V. Gvozdev; IN AND. Terekhin; A.A. Vasiliev; A.P. Chekrygin; L.S. Vasilyeva 2. APPROVED AND INTRODUCED BY Decree of the USSR State Construction Committee No. 93 dated June 16, 1989 3. REPLACE GOST 22689.0-77

	Number of paragraph, subparagraph		Number of paragraph, subparagraph
GOST 166-80		GOST 12082-82
GOST 868-82		GOST 13841-79
GOST 2226-75		GOST 14192-77
GOST 2991-85		GOST 16337-77
GOST 3282-74		GOST 16338-85
GOST 3560-73		GOST 17308-88
GOST 6507-78		GOST 17811-78
GOST 8433-81	2.2.7; 2.2.8; 4.5; 4.6	GOST 18225-72
GOST 8486-86		GOST 18573-86

Plastic pipes and fittings for them for internal sewage systems are manufactured according to GOST 22689.0-77 - GOST 22689.20-77 high density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP) and unplasticized polyvinyl chloride (PVC).
The maximum temperature of permanent drains for HDPE and HDPE pipes is 60°C, for PP pipes 70°C, for PVC pipes 50°C.
Pipes are connected using rubber sealing rings, gluing, using a union nut and a rubber gasket, as well as welding.
Sockets and smooth ends of fittings are produced in four types (GOST 22689.2-77):
I - for joining PVC, PVP and PP products with a rubber sealing ring or by gluing (PVC only);
II - for connecting products made of HDPE, PNP and PP contact
socket-butt welding;
III - for connecting products from HDPE, HDPE and PP using a union nut and a rubber gasket;
IV - for connecting products from HDPE, HDPE and PP using a coupling with an electrospiral insert or flash butt welding (PVP only).
The sizes of sockets and smooth ends of fittings of types I - IV are given in table. 46-48.
Pipes by GOST 22689.3-77 they are made in the form of straight segments, and at the request of the consumer with sockets and with smooth ends prepared for connection (Table 49), as well as in the form of nodes connected to fittings, floor risers and wiring.
The sockets of PVC pipes are molded, and from PVP, PNP and PP they are obtained by welding nozzles to pipes according to GOST 22689.4-77 or couplings according to GOST 22689.13-77. Flares and spigots must match GOST 22689.2-77. At the smooth ends of pipes connected according to type I with a rubber sealing ring along 22689.19-77 (Tables 50 and 51), mounting marks are applied.

Table 46

Conditional pass	D	D1	D2	l	l 1	l 2	With	S*	St	S2	R	h
	nominal										at least
40	40	40,5	49,6	41	11	32	6	3	2,7	2,3	4.5	8,1
50	50	50,6	59,6	41	11	32	6	3	2,7	2,3	4,5	8,1
85	90	90,8	101,5	74	14	62	6	3	2,7	2.3	4,7	9
100	110	110,9	121,9	74	14	62	7	3,8	3,1	2,6	5	9

* Maximum deviation +0.6 mm.

table 47

Conditional pass		D1	D2	l		S with product material
	D				With	PVP	PNP	PP
40	40	39,5	38	12-20 15-25 22-45 26-55	4	3	3	3

Table 48

	Type III					Type IV
Conditional pass	D	d		S with product material		d	1	S
				PVP and PP	PNP
40	50	40,6	25	3	4	40	20	3

Table 49. DIMENSIONS, mm, PLASTIC PIPES (FIG. 14)

Conditional pass	D	D1	l	limiting deviation from L		S for pipe material
					With	PVC	PVP	PNP	PP
32	32	38	3 000	±25			2	2,4	2

Notes:
1. At the request of the consumer, pipes with other values ​​of L can be manufactured.
2. Examples of symbols for pipes:
pipe section made of high density polyethylene Dv 50 mm for connection by type
I pipe TK-PVP-50-I GOST 22689.3-77
pipe with a socket and a smooth end made of low-density polyethylene DN 50 mm for connection according to type II pipe TKR-PNP-50-P GOST 22689.3-77.

Table 50

	D rings				d
D pipe	with material			for picking compensatory spigots made of PVP, PNP and PP
	products
	PVC	PVP	PP
40	39	38	39	39	6
50	49	48	49	49	6
85	89	87	88	89	7
100	109	107	108	109	7

Note. An example of a symbol for a ring;
HDPE ring D y 100 mm for connection type I .. . ring KU 100 PVP-I GOST 22689.19-77

Table 51. DIMENSIONS, mm, OF O-RINGS FOR COMPLETE INSTRUMENT PORTS

D y pipes	D	d
50	56	8
85	95	12
100	107	10

Note.
An example of a symbol for a sealing ring for a complete instrument pipe:
sealing ring With dimensions D = 56 mm and d = 8 mm … ring KU 56X8 GOST 22689.19-77

D at the pipe	D1	D2	S
40	39	45	3
50	49	55	3
85	93	102	2
100	103	112	2

Note. An example of a symbol for a sealing gasket:
gasket D at 100 mm, . . gasket PU-100 GOST 22689.20-77

Table 53. DIMENSIONS, mm, COUPLING WITH INSERTABLE SPIRAL

D at the pipe	D	l	S with coupling material
			PVP and PP	PNP
40	40	40	3	4,5
50	50	50	3	4,5
85	90	90	3,3	6
100	110	110	4	7,5

Note. An example of a coupling symbol:
coupling made of high density polyethylene Dy50 mm coupling ME-50-PVP GOST 22689.14-77

Table id a 54. DIMENSIONS, mm, OF PIPES FOR CONNECTING PIPES WITH A BUTTON OF TYPE I AND A SMOOTH END OF TYPE II (a) AND WITH A BUTTON OF TYPE II AND A SMOOTH END OF TYPE III (b)

Notes
1 PVP spigot designation: HDPE spigot Dy 50 mm for connection type I. . . branch pipe P-PVP 50 I GOST 22689.4-77.
2 Branch pipes for connection according to type I are supplied complete with sealing rings, according to type III - with union nuts and gaskets (see tab. 55),

Table 55. DIMENSIONS, mm, UNION NUT

			D 3 for nut material
D pipes					h
At			PVP and PP	PNP
40	50	41	62	64	21
50	60	51	74	78	21

Note. Symbol of the nut: high-density lolyethylene nut Dy 40 mm, G-40-PVP nut GOST 22689.17-77

Table 56 DIMENSIONS, mm, EXPANSION PIPE

Conditional passage D at	D1	D2	D3	l, no more	l1	l2	h at least	S with product material		Z
								PVP and PP	PNP
50	50	50,7	59,6	150	11	15	8,1	3	3	15
85	90	90,8	101,5	230	14	20	9	3	4,3	20
100	110	110,9	121,5	230	14	20	9	3,5	5,2	20

Table 60

GOST pipes for sewerage

The use of polyvinyl chloride in the production of plastic pipes has made a real revolution in plumbing work, which is carried out in private and industrial volumes. According to the requirements of GOST, PVC pipes for sewerage are designed to transport domestic and industrial wastewater to domestic septic tanks or central highways. At the same time, there are a number of requirements, both for the products themselves and for the conditions of their operation. Only if they are observed, pipelines can last 50 years or more, without maintenance, replacement and repair.

Rough for the toilet includes three different types of pipes. In addition, the waste line must be vented with a 2-inch pipe that extends to the outside. The configuration of these pipes depends on the location of the toilet in relation to the pre-existing plumbing and building of the house.

Place the toilet drain in a place in the bathroom that will provide sufficient clearance for the toilet when installed; 12 inches from the back wall fits most toilets. Cut a 3" or 4" hole for the subfield drain using a reciprocating saw. The size of the hole depends on what size pipe you plan to use. A 3" line provides better drainage, but if the post stack is more than 6 feet away, a 4" pipe is required.

Specifications

GOST PVC sewer pipes sets a number of parameters for this product that are necessary for the safe and trouble-free operation of structures assembled from it. In addition, the main technical characteristics of plastic sewer pipes must comply with current building, sanitary standards and regulations.

Insert a flat flange of the appropriate diameter into the hole in the bathroom and screw it to the base using a screwdriver. The flange holds the toilet to the floor and forms the connection between the toilet and the waste line. The elbow should point in the direction of the pile of soil.

Cut into a stack and stick into a 4" plumbing tee with a 3" or 4" hole, depending on the size of the waste line. Glue the waste line to the tee. Reduce the hole size of the top of the soil stack to 2 inches with a reduction sleeve. This pipe releases the toilet and should end 1 foot above the roof line.

GOST PVC sewer pipes defines the following criteria for these products:

1. Place of use. Products are divided into internal and external. According to GOST, polyvinyl chloride pipes for internal sewerage are painted gray and are used to collect and discharge wastewater from premises. According to GOST, PVC pipes for external sewerage are painted orange, they can be located underground and on the surface. Products of the external type are used to create storm, collector and drainage systems.
2. conditions of the external environment. According to this classification, PVC products are divided into pressure, non-pressure and corrugated. According to GOST, non-pressure PVC pipes for sewerage can only be installed in those places where liquids will be transported by gravity at a relatively low speed. Pressure systems are designed to be subject to fairly strong internal and external pressure, which can be ± 10 atmospheres. Corrugated sections are intended for laying highways on curved sections. They can be manufactured in both pressure and non-pressure versions.
3. Rigidity class. According to GOST, PVC pipes for sewerage have 3 stiffness classes (light, medium, heavy). This allows the use of polymer products in a wide variety of conditions, from a riser in a multi-storey building to a highway laid under a road or construction site. This information is applied on all pipes in the form of a standard marking.
4. Dimensions. These metrics directly affect the build order and system throughput. According to GOST 1898-2001, PVC sewer pipes must have a certain length, wall thickness, weight, inner and outer diameter. So, the length of the sections varies within 50-300 cm, the outer diameter of the internal and external highways is 100-110 mm and 110-250 mm, respectively. The wall thickness of the products is 2.2-3.6 mm.
5. Connection method. According to GOST, plastic sewer pipes are joined in sockets or welded. Welding is used to join sections and fittings of external pressure systems. A socket connection is used when assembling non-pressure risers. To create reliable joints, sealing cuffs and sealants are used.

On a note: Provided that the GOST of plastic sewer pipes fully complies with the declared parameters, the result of the assembly work will be structures with ideal performance.

Cross section of internal pipes

Select an existing copper pipe that carries cold water near the toilet and turn off the water to that pipe. It should run from the tee to the wall behind the toilet and extend about 2 inches behind the wall under the tank. Solder all the seams after you have assembled the power line and attach the line to a stud in the wall behind the toilet with a zip tie.

Shut off the water supply line with a shut-off valve. You can solder the valve to the pipes or install the valve with a compression fitting. Make sure the valve is closed before turning on the water. If you are connecting a new toilet to an existing stack, you only need to install the waste and supply lines. A configuration in which the waste line connects directly to the sewer will require ventilation for the waste line. You can tie a vent pipe to an existing one that already runs through the roof. The valve pipes must either slope upward from the toilet or be horizontal. To do this, the toilet must be located within 10 feet of the stack. . Pipes for domestic sewer systems are made of unplasticized polyvinyl chloride with the addition of stabilizers and additives, intended for the disposal of all types of wastewater in residential and industrial buildings, as well as for the removal of sediments inside and outside buildings.

Benefits of plastic waste systems

The corresponding GOST PVC pipes for sewerage have an extensive list of very significant advantages:

1. Durability. Unlike metal counterparts, polymer systems do not corrode. This means that they are not threatened with thinning and loss of integrity. The outer surface of the highway does not need to be painted and treated against rust.
2. Light weight. This factor directly affects the cost of construction and repair. Products do not weigh down the weight of the building, which saves on the foundation and walls. In addition, even with sections with a diameter of 250 mm, you can work manually without the involvement of lifting equipment.
3. Smooth inner surface. Dirt and lime deposits do not settle on it. Even abrasive particles pass through the drain system without delay or friction.
4. Elasticity. GOST pipes allow bending of the main line under the influence of external factors, such as heaving of the soil or shrinkage of buildings. Thanks to this, the pipeline retains functionality and tightness.
5. Biological and chemical inertness. Mold and fungus do not form on polymer plastic. The material is resistant to acids, alkalis, solvents and other aggressive substances. This allows you to install PVC sewer pipes corresponding to GOST at enterprises, factories and workshops.
6. Ecological and fire safety. Even when passing hot water, the sewage system does not emit harmful substances. PVC does not support combustion. The chlorine component causes the polymer to decay in the absence of a flame.

Separately, it is worth dwelling on the cost of the material. It is several times lower than that of steel products. This causes the high popularity of plastic pipes that meet the requirements of GOST.

Varieties of drainage systems

Pipes have a service life of more than 50 years. The pipes are not suitable for wastewater with a high content of gasoline, acetone and benzene. Connections are made using a female fitting and a rubber ring, which ensures complete tightness of the joints.

How much do sewer pipes cost?

Ideal for pipelines installed underground or on the surface of the earth, laid on free flat surfaces, for the removal of sewage and sediments. Pipes for domestic sewer systems are produced using a fitting. The useful length of a pipe with a female fitting is its length without the length of the muffler.

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

INTERSTATE

Thanks to the integrated gate, the installation of domestic sewer pipes and fittings is very simple and fast. Editor's Note: The following is the first in a two-part series on the various methods available today for rehabilitating sanitary sewer systems.

Sewer systems sewer systems consist of sewer pipes and sewer structures such as manholes, inlet and outlet structures, and pumping stations. Sewer pipes are made from various materials such as clay, concrete, reinforced concrete, cast iron, ductile iron, PVC and polyethylene. Most of the manholes are mainly made of clay bricks or reinforced concrete.

STANDARD

ROUGH AND SHAPED PARTS FROM NON-PLASTICIZED POLYVINYL CHLORIDE FOR INTERNAL SEWER SYSTEMS

Specifications

(ISO 3633:2002, NEQ) (EN 1329-1:1999, NEQ)

Official edition

Standartinform

Foreword

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established in GOST 1.0-92 “Interstate standardization system. Basic Provisions” and GOST 1.2-2009 “Interstate Standardization System. Interstate standards, rules, recommendations for interstate standardization. Rules for the development, adoption, updating and cancellation "

As a result of physical, chemical and biological phenomena, some components of the sanitary sewer collection systems for large cities suffered defects such as collapsed pipes, cracked pipes, displaced joints and cracked manholes. This results in surcharges or overflows from wells located upstream of over-capacity pipe segments. The total flow also often exceeds the capacity of the wastewater treatment plant, resulting in bypasses of the raw wastewater to the receiving waters.

This shunt can harm human health and the environment. The destruction of the excavations led to trenchless technology. The traditional method of remediating defective sanitary drains and associated supplies is excavation and replacement. Since sewer pipes in urban areas are mostly located in the middle of the streets, excavation and replacement create traffic disruptions, resulting in lost productive time for workers in such areas. In addition to the costs associated with lost production time for workers, additional costs arise from the repair of excavated roads and other structures.

About the standard

1 DEVELOPED by LLC "NTC Systems of pipelines made of polymeric materials" with the participation of LLC "RusVinyl"

2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 44-2013 dated November 14, 2013)

4 By order of the Federal Agency for Technical Regulation and Metrology dated December 30, 2013 No. 2382-st, the interstate standard GOST 32412-2013 was put into effect as the national standard of the Russian Federation from January 01, 2015.

In an attempt to reduce the costs and disruptions associated with excavation and replacement, "no-dig" technologies have been developed in the spa recovery industry network to rehabilitate the sanitary sewer collection system. Rehabilitation of manholes is carried out in several ways. Several technologies are used to repair defective hatches. Some of the more common technologies include spraying the inside of a defective hatch using urethane, epoxy, or cementitious materials; installation of epoxy resin cladding based on cured resin; and installing a fiber grass liner.

5 This standard complies with International Standard ISO 3633:2002 Plastics piping systems for soil and waste discharge (low and high temperature) inside buildings - Unplasticized poly(vinyl chloride) (PVC-U) temperature) inside buildings - Unplasticized poly(vinyl chloride) (PVC-U) and European standard EN 1329-1:1999 Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Unplasticized poly(vinyl chloride) (PVC-U ) - Part 1: Specifications for pipes, fittings and the system .

Sprayed urethane resin is probably the most effective material for repairing defective wells. The first step is to conduct a system survey. Trenchless technologies have been implemented in the United States with varying degrees of success. In order to determine the most suitable products for the rehabilitation of any sewer collection system, each community should conduct a sewer survey.

It should be noted that trenchless technologies have not completely replaced the excavation and replacement of defective sewers and manholes. There are still circumstances in which excavation and replacement is the best way to rehabilitate a segment of the sanitary sewer collection system.

Degree of conformity - non-equivalent (NEQ)

6 INTRODUCED FOR THE FIRST TIME

Information about changes to this standard is published in the annual information index "National Standards". and the text of changes and amendments - in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, a corresponding notice will be published in the monthly information index "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

Video about the installation of plastic sewer pipes

Our sewer pipes are the best for water supply systems, and are also used in water supply and heating technology to expand existing sanitary facilities. Sewer pipes and other forms can be installed to install water to expand the existing pipeline network.

The nominal width of the downspout has a standard diameter. Multilayer pipe - we learn from nature. This allows the production of a product whose wall is similar to the structure of bone, as known from the animal kingdom. Material. The result is pipe tubes and moldings with a perfectly smooth inner wall that is resistant to abrasion and a resilient core that can withstand both ground pressure and traffic loads. Sealing elements Sealing of connections is provided by sealing elements from steady elastomers.

© Standartinform, 2014

In the Russian Federation, this standard cannot be fully or partially reproduced. replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology

INTERSTATE STANDARD

PIPES AND FITTINGS FROM UNPLASTIFIED POLYVINYL CHLORIDE FOR INTERNAL SEWER SYSTEMS

They are set on a flute. Sealing properties are maintained even when the pipe is deformed or deflected. The connection of pipes is very simple due to the sleeve with a sealing element. This results in fewer compounds than with elements made of heavy materials. In the event of a shortage of supply, we reserve the right to supply equivalent products from other manufacturers of the brand. Discover in our category more articles from the area at reasonable prices. Only one time shipping cost will be charged per order.

Delivery within Austria. Delivery time in Germany is usually around 1-2 working days, this is indicated for each article and may be longer. Pipes and fittings are supplied with a molded socket and O-ring. Orange color. Fingers from cheap pipes With channel channels, the handle on an inexpensive product can become expensive! The channel pipe must provide a service life of at least 50 years. Styrofoam pipes often fail to achieve this goal. The consequences are high costs because the exchange and new installation cost a lot more than the product itself.

Specifications

Unplasticized polyvinylchloride pipes and fittings for waste discharge inside the buildings. _Specifications_

Introduction date -2015-01-01

1 area of ​​use

This standard applies to pipes and fittings made of unplasticized polyvinyl chloride PVC-U (UPVC) with a solid wall, intended for sewer systems for the removal of domestic wastewater and storm sewers inside buildings.

The photo shows: foam pipes can crack at low temperatures. What is clearly recognized in the so-called "balance test" also brings significant disadvantages and dangers to the publisher in practice. The plug system consists of many precisely matched parts and is permanently sealed and extremely durable. Whether the channel is street or home, the system has a lifetime for many generations.

The three-layer pipeline system made of polypropylene is characterized by high ring and longitudinal rigidity. White inner layer facilitates inspection with a camera, hard. The outer layer makes the tube stable. Single-layer polypropylene tubes are available in two stiffness classes. They are equipped with a double socket with a fixed sealing ring. The system is completed by an extensive molding program.

2 Normative references

This standard uses normative references to the following interstate standards:

** On the territory of the Russian Federation, GOST R ISO 3126-2007 applies.

3.5 mean outer diameter d, m, mm: The measured outer circumference of a pipe or pipe end of a fitting in any cross section, divided by l (n = 3.142), rounded up to 0.1 mm.

The connection is usually made by electrical welding. Alternative laying methods such as plowing, flushing or tearing require special requirements for the piping system. For example, they are particularly resistant to point loads and surface damage.

Ensure water supply even in drought

The extensive shaft program allows inspection, cleaning and ventilation of pipelines, as well as pipe assembly. Each child is promoted and receives an education appropriate to his needs and inclinations. The wear and tear on these tanks and the high maintenance that many people want to save is a danger to everyone. The natural wear and tear of these pipes is caused by the roots of the cotton in many places - the pipes leak and there is a risk that the sewage will not drain properly and thus become a health hazard.

3.6 average inside diameter of a socket d im , in mm

3.7 out-of-roundness

3.8 wall thickness e, mm: The result of measuring the wall thickness at any point along the circumference of the product.

3.9 mean wall thickness e m, mm

3.10 pipes and fittings with a solid wall: Pipes and fittings with a smooth outer and inner surface, having the same composition throughout the entire thickness of the wall.

4 Main parameters and dimensions

4.1 Pipe dimensions

4.1.1 The mean outer diameter, d am, shall be in accordance with Table 1.

Table! In millimeters

Nominal size DN/OD	Nominal outside diameter d n	Average outside diameter d am
		minimum d am t u	maximum R at

4.1.2 The ovality, measured immediately after manufacture, shall not exceed 0.024dn.

4.1.3 The wall thickness shall be in accordance with Table 2.

Allowed wall thickness at any point is not more than 1.2e mm, provided that the average thickness is

wall thickness e m not more than e^n, ax.

4.1.4 The pipe length / (effective), measured in accordance with Figure 1, shall be specified by the manufacturer. The maximum length deviation is ± 10 mm.

a) Pipe with a socket for an o-ring

b) Pipe with a socket for adhesive connection

L_______________i

c) Pipe (with chamfer)

d) Pipe (without chamfer)

Figure 1 - Effective pipe length

4.1.5 In the manufacture of pipes with a chamfer, the chamfer angle should be from 15° to 45° to the pipe axis. The remaining wall thickness at the end of the pipe must be at least 1/3e m =n.

4.2 Dimensions of fittings

4.2.1 The average outer diameter d am of the pipe end shall be in accordance with Table 1.

4.2.2 The minimum wall thickness e mln of the body or pipe end shall be in accordance with Table 2. The wall thickness may be reduced by 5%, while the arithmetic mean of the thickness of two opposite walls shall not be less than e t.

For transitional fittings designed to connect pipelines of two different nominal sizes, the wall thickness of each socket (pipe end) must meet the requirements for the corresponding nominal size. In this case, the wall design provides for a smooth change in thickness from one value to another.

4.3 Dimensions of sockets and pipe ends

4.3.1 The dimensions of sockets and pipe ends for glued joints (Figure 2) must comply with Table 3.

The manufacturer must specify whether the flare is conical or parallel. If the socket is parallel, then the average inside diameter of the socket, d itn, shall be applied along the entire length of the socket. If the flare is tapered, the limits for dun shall apply at the midpoint of the flare length at a maximum taper angle of 20" (minutes) from the axis of the flare.

d t - inner diameter of the socket; Z., - length of the pipe end; L 2 - the length of the socket; e g - socket wall thickness

Figure 2 - The main dimensions of the socket and the pipe end for the adhesive joint

	Average internal height	rub diameter	Length of socket L 2 and pipe end L, not less than	Wall thickness ©2 . at least
	minimum	maximum

For connections assembled at the factory. U values ​​can be reduced to C values.

indicated in table 4.

4.3.2 The dimensions of sockets and pipe ends for the sealing ring (Figure 3 a)) must comply with Table 4, 5 or 6 depending on the type of socket and pipe end (type S I, S II or M).

Various designs of the groove for the sealing ring are allowed (Figure 3 b)), provided that the characteristics of the connection comply with the requirements specified in Table 11.

Flare dimensions, including maximum mean inside diameter dun,max . And EC-navki under the sealing ring must be installed by the manufacturer in the design and technical documentation for the product.

dt - internal diameter of the socket; A is the minimum contact length; C - depth of the point of effective compaction; Li is the length of the pipe end; e? - socket wall thickness; vz - wall thickness in the area of ​​the groove for the sealing ring

Figure 3 - Main dimensions of the socket and the pipe end for the sealing ring

Table 4 - Socket and pipe end type S I (short type I)

In millimeters

Table 5 - Socket and pipe end type S II (short type II)

In millimeters

Nominal outside diameter d n		A. no less	C, no more	Li, not less

Table 6 - Socket and pipe end type M (medium)

In millimeters

Nominal outside diameter d n	Average flare inner diameter (minimum)			Li, not less

If the O-ring creates more than one seal point (Figure 4). then the minimum value of A and the maximum value of C are measured from the point of effective sealing, as specified by the manufacturer.

Figure 4

The wall thickness e 2 and e 3 of the sockets for the sealing ring (Figure 3 a)) must comply with Table 7.

It is allowed to reduce the wall thickness e 2 and e 3 by 5%, while the arithmetic mean of the thicknesses of two opposite walls should not be less than the values ​​given in Table 7.

Table 7_In millimeters

In socket designs where the sealing ring is held by a cap (Figure 5), the wall thickness e 3 shall be calculated by adding the wall thickness of the socket and the wall thickness of the cap in the relevant cross section.

Figure 5 - Wall thickness of the socket with a cover for installing the sealing ring

4.3.3 Dimensions of O-ring flare type L (long) and pipe end for

Expansion pipes for adhesive joints must comply with Table 8.

Table 8 - Type L socket (long) and pipe end for sockets of expansion joints

In millimeters

Nominal outside diameter d n	Average flare inner diameter (minimum)	Ah, no less	C, no more

4.4 Types of fittings

Shaped parts are made by injection molding. Fittings are made for connection with a sealing ring and for adhesive bonding.

This International Standard is applicable to the following main types of fittings:

a) bends (Figure 6) are produced in the following versions:

Pipe end-bell or bell-bell;

Elbow curved (with radius R).

The nominal angle a for bends is selected from the following values: 15°, 22°30", 30°, 45°, 67°30' and from 87°30" to 90°;

b) double-socket couplings and slip-on couplings (Figure 7);

c) adapter pipes (Figure 8);

d) tees and transitional tees (Figure 9) are produced in the following versions:

Pipe end-bell-bell or bell-bell-bell;

Tee bent (with radius R).

The nominal angle a for tees is selected from the following values: 45°, 67*30" and from 87*30" to 90°.

Other types and designs of fittings are allowed.

The installation length z of the fittings must be specified by the manufacturer. The installation length z of fittings is not used for quality control.

The design and nomenclature of fittings must be established in the design and technical documentation of the manufacturer.

Figure 6 - Retraction

Figure 9 - Tee

4.5.1 Symbol of pipes includes:

The word "pipe";

Nominal size (nominal outside diameter) and nominal wall thickness;

4.5.2 The designation of the fitting includes:

Name of the fitting;

Abbreviated name of the material: PVC-U in Latin or NPVC in Cyrillic;

Nominal size (nominal outside diameter);

Designation of this standard.

Examples of symbols:

Pipe with a nominal outer diameter of 160 mm and a nominal wall thickness of 3.2 mm:

Meaning

Test method

1 Impact strength at 0 °C 11

2 Impact strength at 0 °C (step method)

H50 & 1000 mm (max. one break at drop height £ 500 mm)

3 Changing the length of the pipes after warming up. %, no more

(on pipes after warming up there should be no bubbles and cracks)

Note - The manufacturer is not responsible for markings that have become illegible as a result of the following actions during installation and operation: painting, surface cleaning or the use of detergents, with the exception of those agreed or installed by the manufacturer.

When marking by printing, the color of the marking must differ from the color of pipes and fittings. The font size and quality of marking should ensure its legibility without the use of magnifying devices.

When marking by thermal embossing, the indentation depth should be no more than 0.25 mm.

5.4.2 Each section of the pipe must be marked at intervals of not more than 1 m and contain: name and (or) trademark of the manufacturer, symbol without the word "pipe", date (year and month) of manufacture.

It is allowed to include additional information in the marking of pipes, for example, shift number and batch number. For pipes that meet the requirements for impact strength by the stepwise method (table 9. indicator 2), the mark F - “snowflake” may be indicated in the marking.

5.4.3 Marking of fittings is made on the outer surface of each product and includes: name and (or) trademark of the manufacturer, symbol of the fitting without the name of the fitting, date of manufacture (year).

The designation of this standard, the name of fittings, the date of manufacture may be indicated on a label that ensures the safety of the marking during transportation, storage and installation.

5.4.4 Each package must be marked with a shipping label according to

Pipes and fittings are resistant to degradation in atmospheric conditions. The waste of non-plasticized polyvinyl chloride generated during production is non-toxic and recyclable. Wastes unsuitable for recycling are subject to destruction in accordance with sanitary rules that provide for the accumulation, transportation and disposal of industrial waste.

With regard to the use, transportation and storage of pipes and fittings, there are no special requirements for environmental protection.

6.4 In the production of pipes and fittings, fire safety requirements should be observed in accordance with GOST 12.1.004. In case of fire, extinguishing is carried out with fire-extinguishing compounds, carbon dioxide, fire-extinguishing powders, sprayed water with wetting agents, felt mat. To protect against toxic combustion products, insulating gas masks or industrial filter gas masks of the M or BKF brand are used.

7 Acceptance rules

7.1 Pipes and fittings are accepted in batches. A batch is considered pipes or fittings of the same name and size (nominal diameter and wall thickness), manufactured

manufactured from a composition of the same prescription composition and brands of components, on the same technological equipment, handed over at the same time.

7.2 The quality document should contain:

Name and (or) trademark of the manufacturer;

Symbolic designation of products;

Batch number and/or date of manufacture;

Lot size;

Confirmation of conformity of products to the requirements of this standard.

7.3 To check the compliance of pipes and fittings with the requirements of this standard, acceptance and periodic tests are carried out in the scope specified for pipes - in table 13, fittings - in table 14. connections - in table 15.

Table 13

Name of indicator	Requirements present standard	control	Control frequency
1 Appearance, marking			Each batch
2 Dimensions			Each batch
3 Impact strength at 0 °C p	5.1.2. table 9			depending on d n , but not less than 2
4 Impact strength at 0 °C (step method) 11	5.1.2, table 9		Once every 12 months for the material used and each size group	At least 10
5 Change in length after warming up	5.1.2, table 9		Once every 6 months for each size group
6 Resistance to dichloromethane	5.1.2, table 9		Once every 12 months for each size group
7 Vicat softening point	5.1.2, table 9		1 time in 12 months for the material used
" Impact strength is determined by one of the specified methods.

Table 14

Name indicator	Requirements present standard		Control frequency
1 Tightness (water tightness) of connections	5.1.4. table 11		1 time in 12 months for each size group and connection design" 1
2 Tightness (air tightness) of connections	5.1.4. table 11		Once every 24 months for each size group and connection design’ 1
3 Tightness of joints under cyclic exposure to elevated temperatures 21	5.1.4. table 11	Annex A	When first released and redesigned connection 11
"The design of the connection is determined by the design of the sealing ring, the shape of the groove for the ring, the hardness of the ring (± 5 units). 21 The definition of the indicator is optional.

7.4 Sampling of pipes and fittings for acceptance tests is carried out from the batch by random selection. It is allowed to take samples evenly during the production process.

For periodic testing, samples are taken from batches that have passed acceptance tests, grouping products according to tables 16 and 17.

Table 16

Table 17

Type group of fittings	Name of fittings
	Tees

7.5 If, during acceptance tests, at least one sample for any indicator does not meet the requirements of this standard, then repeated tests are carried out for this indicator on a double number of samples taken from the same batch. In case of unsatisfactory results of repeated tests, the batch of products is not subject to acceptance.

7.6 Upon receipt of unsatisfactory results of periodic tests, repeated tests are carried out in terms of non-compliance on a double number of samples. In case of unsatisfactory results of repeated tests, the causes that led to the non-compliance should be identified and eliminated.

According to their technical characteristics, PVC pipes are optimally suited for the installation of a sewer pipeline inside and outside the building. After installation, the structure retains tightness and strength for 100-150 years. When choosing, they are guided by the technical characteristics of the product and the existing classification of the product.

Before you opt for PVC products, you should learn about the technical and operational characteristics of the pipeline. What distinguishes it from similar pipes made of plastic or cast iron?

1. Life time. Studies have shown that pvc pipe remains resistant to decay for at least 120 years, which is the average service life. Considering that during this period a major overhaul of the building will be necessarily carried out with a complete replacement of risers, then the pipe will last for the entire period of operation of a residential or industrial complex.
2. Compliance. PVC sewer pipes fully comply with the standards specified in SanPiN guests.
3. Ease of installation. A reliable and tight connection of pipes is provided without the use of special mechanisms and devices. Installation is carried out independently. Installation requires observance of slopes and angles. To increase the tightness of the joints, it is recommended to glue the mounting surfaces.

Another plus that affects the popularity of PVC products is the low cost. Compared to cast iron and even plastic pipelines, the established price is at least 10-15% lower. PVC pipe is the best option for do-it-yourself sewerage.

The existing classification of PVC pipes

For sewerage, several types of pipelines with different characteristics are produced. When choosing, pay attention to the following:

Scope of operation:

1. Internal system. The gray sewer pipe is designed for internal wiring and connection of household appliances to the building's drainage system. Product diameter from 50 to 120 mm.
2. External sewerage. PVC pipes for internal sewerage are available in brown. The product features a large bore diameter. By production high-strength plastic with additives is applied. The pipe is suitable for stormwater drainage, installation of a central sewer riser and culverts.

Working environment:

1. Non-pressure pipes. Designed for connection to drainage systems without creating artificial pressure, where the movement of fluid occurs by gravity. Drainage speed should not exceed 8 m/sec.
2. Pressure pipes. Designed for wiring in large areas, the operation feature of which is the need to create forced pressure in the sewerage system. The pipeline can withstand a pressure of about 10 atm.
3. Corrugated pipes. Type of sewer, which is characterized by high design flexibility. Corrugated ribs perform a protective function, preventing damage to the pipe. Optimally suited for installation of a drainage system in hard-to-reach places.

When choosing a pipeline, they are guided by the scope of its application. There is pvc for outdoor sewage, as well as wiring in oil refineries and chemical plants. PVC pipe marking.

Features of choosing a PVC pipe

The selected type of pipe depends not only on the scope of application, but also on other operating parameters. To facilitate the process of selecting material, you should pay attention to the following aspects:

1. Compliance with GOST. A standard marking must be present on the surface of the product, indicating that the product has passed performance and performance tests.
2. Operating parameters. The pipeline is selected according to the inner and outer diameter, field of operation, section length, strength.
3. Additional characteristics. All polyvinyl chloride has the same properties, but during the production process, special additives are used to give it additional characteristics. The consumer is offered pipes resistant to acids and other aggressive substances, with a special inner coating that prevents the accumulation of debris and grease on the inside of the pipeline. The sewer pipeline is also used when laying high voltage cables. In this case, substances are added to the material, leading to the rapid extinction of the fire.

After choosing the material, proceed to the installation work.

Product mounting options

The characteristic of the sewer pipeline affects the features of its installation. For wiring and connection, several connection options are used.

1. glue method. It consists in the fact that a small amount of adhesive is applied to the mounting surfaces. Gluing the pipe is possible only in the case of non-pressure domestic drainage systems.
2. Soldering pipes. This method is used when installing external sewerage, laying the central riser. The welding method of installation provides high tightness and the ability of the seam to withstand high pressure in the system.

When installing the pipeline, the following recommendations apply:

1. The slope of the pipe is maintained at least 1 cm per linear meter.
2. The number of corners is kept to a minimum. If a swivel is required, use a 45° angle rather than a 90° angle.
3. External pipe laying is carried out in a specially prepared trench. A sand cushion 10-15 cm thick is laid on the bottom. The surface is compacted.

Polyvinyl chloride pipes are widely used in domestic and industrial construction, the manufacture of storm and waste sewers. The pipeline is successfully used for external and internal use, with independent and professional installation of systems of varying complexity.