GOST 32591-2013

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  ГОСТ 32591-2013

GOST 32591−2013 Fittings of copper and copper alloys for jointing copper pipe pressing method. Specifications

GOST 32591−2013

INTERSTATE STANDARD

FITTINGS OF COPPER AND COPPER ALLOYS FOR JOINTING COPPER PIPES WITH PRESSING METHOD

Specifications

Fittings of copper and copper alloys with compression ends for use with copper tubes. Specifications

OKS 23.040.15
GST 18 4450

Date of introduction 2015−01−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. The procedure of development, adoption, application, renewal and cancellation"

Data on standard

1 DEVELOPED by the Technical Committee for standardization TC 106 «Tsvetmetprokat», Scientific-research, project and design Institute for alloys and processing of nonferrous metals open joint stock company «Institute tsvetmetobrabotka» (JSC «Institute tsvetmetobrabotka»)

2 SUBMITTED by the Technical Secretariat of the Interstate Council for standardization, Metrology and certification

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification by correspondence (minutes dated December 27, 2013 N 63-P)

The standard was accepted by voting:

Short name of the country on MK (ISO 3166) 004−97	Country code MK (ISO 3166) 004−97	Abbreviated name of the national authority for standardization
Armenia	AM	Ministry Of Economy Of The Republic Of Armenia
Kyrgyzstan	KG	Kyrgyzstandard
Russia	EN	Rosstandart
Tajikistan	TJ	Tajikstandart

4 by Order of the Federal Agency for technical regulation and Metrology, dated 30 December 2013 2405 N interstate standard GOST 32591−2013 introduced as a national standard of the Russian Federation from January 01, 2015

5 INTRODUCED FOR THE FIRST TIME


Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

1 Scope

This standard applies to fittings of copper and copper alloys, intended for connection by way of pressing copper pipes and establishes requirements for the press-joints used in the installation of pipelines in drinking water systems, hot and cold water, water (steam) heating, heating and cooling systems, sewage systems, water treatment facilities and gas supply.

The standard establishes permissible operating temperature, maximum operating pressure, range, technical requirements, acceptance rules, methods of control and testing, marking and packaging of fittings.

2 Normative references

This standard uses the regulatory references to the following standards:

GOST 166−89 (ISO 3599−76) Calipers. Specifications

GOST 269−66 rubber. General requirements for physical and mechanical tests

GOST 270−75 rubber. Pragoprojekt method for the determination of tensile properties

GOST 613−79 tin foundry Bronzes. Brand

GOST 859−2001 Copper. Brand

GOST 1953.1−79 Bronze tin. Methods for determination of copper

GOST 1953.2−79 Bronze tin. Methods for determination of lead

GOST 1953.3−79 Bronze tin. Methods for determination of tin

GOST 1953.4−79 Bronze tin. Methods for determination of phosphorus

GOST 1953.5−79 Bronze tin. Methods for determination of Nickel

GOST 1953.6−79 Bronze tin. Methods for determination of zinc

GOST 1953.7−79 Bronze tin. Methods of iron determination

GOST 1953.8−79 Bronze tin. Methods for determination of aluminium

GOST 1953.9−79 Bronze tin. Methods for determination of silicon

GOST 1953.10−79 Bronze tin. Methods for determination of antimony

GOST 1953.11−79 Bronze tin. Methods for determination of bismuth

GOST 1953.12−79 Bronze tin. Methods of determining sulphur

GOST 1953.13−79 Bronze tin. Method of determination of manganese

GOST 1953.14−79 Bronze tin. Method for determination of magnesium

GOST 1953.15−79 Bronze tin. Methods for determination of arsenic

GOST 1953.16−79 Bronze tin. Method of determining titanium

GOST 2768−84 Acetone. Specifications

GOST 2991−85 wooden disposable Boxes for loads up to 500 kg. General specifications

The Wire GOST 3282−74 General purpose low carbon steel. Specifications

GOST 3560−73 package steel Strip. Specifications

GOST 4461−77 nitric Acid. Specifications

GOST 6507−90 Micrometers. Specifications

GOST 7376−89 corrugated Cardboard. General specifications*
_______________
* On the territory of the Russian Federation acts GOST R 52901−2007 «corrugated Cardboard for packaging products. Technical conditions."

GOST 9557−87 flat wooden Pallet size 800x1200 mm. specifications

GOST 9717.1−82 Copper. Method of spectral analysis on a metal standard samples with photoelectric registration of spectrum

GOST 9717.2−82 Copper. Method of spectral analysis on a metal standard samples with photographic registration of spectrum

GOST 9717.3−82 Copper. Method of spectral analysis of oxide standard specimens

GOST 10198−91 wooden Boxes for goods of mass over 200 up to 20000 kg. General specifications

GOST 10354−82 polyethylene Film. Specifications

GOST 12082−82 wooden Crates for loads weighing up to 500 kg. General specifications

GOST 13938.1−78 Copper. Methods for determination of copper

GOST 13938.2−78 Copper. Methods of determining sulphur

GOST 13938.3−78 Copper. Method of determination of phosphorus

GOST 13938.4−78 Copper. Methods of iron determination

GOST 13938.5−78 Copper. Methods for determination of zinc

GOST 13938.6−78 Copper. Methods for determination of Nickel

GOST 13938.7−78 Copper. Methods for determination of lead

GOST 13938.8−78 Copper. Methods for determination of tin

GOST 13938.9−78 Copper. Methods for determination of silver

GOST 13938.10−78 Copper. Methods for determination of antimony

GOST 13938.11−78 Copper. Method for the determination of arsenic

GOST 13938.12−78 Copper. Methods for determination of bismuth

GOST 13938.13−93 Copper. Methods for determination of oxygen

GOST 13938.15−88 Copper. Methods for determination of chromium and cadmium

GOST 14192−96 Marking of cargo

GOST 15102−75 the universal metal closed Container of nominal gross mass 5,0 t Technical specifications

GOST 15846−2002 Products that are sent to the far North regions and equated areas. Packing, marking, transportation and storage

GOST 18829−73 Rings rubber sealing round section for hydraulic and pneumatic devices. Specifications

GOST 21650−76 means of fastening of package cargoes in transport packages. General requirements

GOST 22225−76 universal Containers with a gross weight 0,625 and 1,25 t. specifications

GOST 24231−80 non-ferrous metals and alloys. General requirements to selection and preparation of samples for chemical analysis

GOST 24597−81 the packaged goods. Basic parameters and dimensions

GOST 25086−2011 non-ferrous metals and their alloys. General requirements for methods of analysis

GOST 26663−85 transport Packs. Formation with the use of packaging. General technical requirements

GOST 31382−2009 Copper. Methods of analysis

GOST 32598−2013 Pipes of circular cross-section for water and gas. Specifications

GOST ISO 7323−96 Rubber and compounded rubber, unvulcanized. The determination of indicators

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Terms and definitions

This standard applies the following terms with respective definitions:

3.1 fitting: a Device in the pipeline system, designed to connect pipes together or with another component of the system.

3.2 the press fitting: the Fitting, one or more ends which provides a press connection.

3.3 press connection: the Connection of the fitting with sealing element at the end of the pipe subjected to radial compression using a press tool.

3.4 double loop crimping: simultaneous bilateral compression before and after a sealing element of a press fitting with a press tool.

3.5 nominal diameter: the nominal diameter of the end fitting, expressed as a nominal outer diameter of the joining pipe.

3.6 press tool: A special mechanical device, which provides the necessary radial compression of the end fitting and the connecting pipe.

3.7 flammable gas: combustible gases, which are gaseous at 15 °C and 0,1013 MPa.

3.8 maximum operating pressure; mad: Maximum operating pressure at which the pipeline can operate in normal conditions.

3.9 micropos (safety loop): a microscopic hole on the inner surface of the end fitting, pointing to the lack of tightness of the fitting in neobiota condition.

4 Assortment

4.1 Minimum cross section in any part of the fitting should not be less than the theoretically calculated cross section to the minimum diameters specified in table 1.


Table 1

In millimeters

Nominal diameter	The minimum diameter, With
6,0	4,0
8,0	6,0
10,0	7,0
12,0	9,0
14,0	10,0
15,0	11,0
16,0	12,0
18,0	14,0
21,0	18,0
22,0	18,0
28,0	23,0
35,0	29,0
40,0	35,0
42,0	36,0
54,0	47,0
64,0	55,0
66,7	57,0
76,1	65,0
80,0	68,0
88,9	76,0
108,0	92,0
133,0	124,0
159,0	130,0
219,0	200,0
267,0	Of 210.0

4.2 For fittings with different diameters the minimum diameter is taken for each.

4.3 nominal diameter and minimum wall thickness of the pipe to connect fittings compaction method are shown in table 2.


Table 2

Nominal diameter	The minimum thickness of pipe wall
0,6	0,7	0,8	0,9	1,0	1,1	1,2	1,5	2,0	2,5	3,0
6,0	X	X	X
8,0	X	X	X
10,0	X	X	X	X
12,0	X	X	X	X
14,0	X	X
15,0	X	X	X
16,0	X
18,0	X	X
21,0	X
22,0	X	X	X	X	X
28,0	X	X	X	X
35,0	X	X	X
40,0	X
42,0	X	X	X
54,0	X	X	X	X
64,0	X
66,7	X	X
76,1	X	X
80,0	X
88,9	X
108,0	X	X
133,0	X	X
159,0	X	X
219,0	X
267,0	X

4.4 the ends of the fittings are made with stops to limit entering of the pipe. For specific purposes allowed produce fittings without stops.

4.5 Control of leaks (before compression) is carried out by special technical means confirmation of the performed compression. Including fittings with micropeza (safety loop) at the ends.

The legend of fittings include:

— name, such as, tee, elbow, coupling, etc.;

— nominal diameter — the diameters of the connected pipes. Fittings designed to connect pipes of the same diameter should be in the designation of this diameter. Fittings designed to connect pipes of different diameters are indicated by showing all the outer diameters of the respective pipes;

brand: copper or alloy;

two alphanumeric sign defining a specific manufacturer, that indicate, if necessary, when ordering. In the absence of alphanumeric characters is — XX;

— the basic code designation of the fitting;

— type of end fitting. For all fittings of type 2, 3 or 4 indicated a dose rate of 0.1 or der of 0.5;

— fittings are made without stop — BU;

— the designation of this standard.

Symbols are examples of fittings:

Fitting in a drainage hole under the pipe with a diameter of 22 mm, made of copper brand M1r, with a basic code 5001а fitting for water supply:

The outlet 22 M1r XX 5001а type 1 GOST…

Allowed in the callout nominal diameter of the fitting to affix after the base code designation

5 Technical requirements

5.1 Fittings manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

5.2 the Name and the basic code designation of fittings specified in the standard shall be applied to fittings for connection the copper pipe pressing method.

5.3 Fittings are manufactured from copper: the brands M1r, M1 °F and M2r — according to GOST 859; brand Cu-DHP with the chemical composition specified in table 3; brass stamps CuZn39Pb1AI-with the chemical composition shown in table 4; bronze brand Bro5c5s5 according to GOST 613; bronze brand CuSn5Zn5Pb2-C with the chemical composition shown in table 5; bronze brand CuSn5Zn5Pb5-C with the chemical composition shown in table 6.


Table 3 — Chemical composition of copper grade Cu-DHP

Mark copper	Limit	Mass fraction of element, %		The density of copper, g/cm
Copper + silver, no less	Phosphorus
Cu-DHP	Min.	99,90	0,015	8,9
Max.	-	0,040
Including silver to 0.015% max.

Table 4 — Chemical composition of brass stamps CuZn39Pb1AI-

Mark	Limit	Mass fraction of element, %
Aluminium tions	Copper	Nickel	Lead	Tin	Zinc	Iron	Marga- Heff	Foz Fort	Cream tions
CuZn39Pb1AI-C	Min.	-	58,0	-	0,5	-	The rest Noah	-	-	-	-
Max.	0,8	63,0	1,0	2,5	1,0	0,7	0,5	0,02	0,05

Table 5

Mark	Limit	Mass fraction of element, %
Copper	Nickel	Foz Fort	Swee- Heff	Tin	Zinc	Alu- mini	Same- the Uragan	CE RA	Sur- mA	Cream tions	Chrome
CuSn5Zn5Pb2-C	Min.	84,0	-	-	-	4,0	4,0	-	-	-	-	-	-
Max.	88,0	0,60	0,04	3,0	6,0	6,0	0,01	0,03	0,04	0,10	0,01	0,02

Table 6 — Chemical composition of bronze stamps CuSn5Zn5Pb5-C

Mark	Limit	Mass fraction of element, %
Copper	Nickel	Foz Fort	Swee- Heff	Tin	Zinc	Aluminium tions	Jelly zo	Sulfur	Antimony	Cream tions
CuSn5Zn5Pb5-C	Min.	83,0	-	-	4,0	4,0	4,0	-	-	-	-	-
Max.	87,0	2,0	0,10	6,0	6,0	6,0	0,01	0,3	0,10	0,25	0,01

5.4 All materials used for the manufacture of fittings, and fittings intended for drinking water pipes under this standard must be authorized by national health authorities.

5.5 Copper and copper alloys are the materials non-combustible, fireproof and so there is no need to test reaction to fire resistance.

5.6 Types of end fittings depending on the environment in which they are used, are given in table 7.


Table 7

Type	The medium used
1	Water
2	Combustible gas
3	Water and combustible gas
4	Flammable gas at low (up to minus 40°C) ambient temperatures

5.7 Operating temperature and maximum operating pressure for press connections shall not exceed the limits set out in tables 8 and 9 in accordance with the type of end fitting and its purpose.


Table 8 — Operating temperature and maximum operating pressure for all fittings of type 1 and 3 in contact with water

Operating temperature, °C	Maximum operating pressure, MPa
30	1,6
95	1,0
Notes 1 the Average pressure should be determined by linear interpolation. 2 By agreement between the consumer and the manufacturer allowed for certain structures of the ends of the fittings a different operating temperature and pressure. 3 Fittings shall withstand temperature extremes of up to 110 °C and pressure up to 1.0 MPa.

Table 9 — Operating temperature and maximum operating pressure for all fittings types 2 and 3 in contact with gas

Operating temperature, °C	Maximum operating pressure (der), MPa
A dose rate of 0.5	A dose rate of 0.1
-20 to +70	0,5	0,1
-40 to +70	0,5	not allowed

5.8 the Outer, inner and end surfaces of the fittings shall be free from dirt, pure. The fittings must not have sharp edges, burrs, cracks, holes and delamination.

On the surface of the fittings allowed for some minor dents, corrugations, burrs from the parting plane of the dies, but these do not affect the installation and operation of pipelines.

5.9 Internal surface of the copper fittings should not contain carbon films or carbon, with a level sufficient for the formation of such a film.

The maximum total carbon level should not exceed 1 mg/DM.

5.10 End surface of the fittings must be perpendicular to the axes of the passages. The deviation must not exceed two degrees.

5.11 Fittings in compressed condition, must be sealed.

5.12 Press the connection must be resistant to stretching.

5.13 Press the joint should withstand cyclic temperature changes.

5.14 Press the connection must withstand the operating temperature.

5.15 Press the joint should withstand cyclic pressure changes.

5.16 Press the connection must withstand the vacuum.

5.17 Press the connection must withstand vibration.

5.18 Press the connection must be resistant to static bending load.

5.19 Press the connection must be resistant to high temperature.

5.20 Minimum tensile strength of sealing elements for the ends of fittings type 1 & 3 must be at least 20 N.

Sealing elements for the ends of the fittings of types 1 and 3 must meet the requirements of thermogravimetric analysis (TGA).

5.21 in the interaction with ozone seals of all fittings types 2 and 3 cracks are not allowed.

5.22 Sealing elements for the ends of fittings type 1 must withstand the test specified service life of the sealing element.

5.23 Sealing elements for the ends of fittings type 4 shall pass the test for operation at low temperatures.