national standard flange ball valve -凯发彩票

in russia, the valves at the end of their certification are divided into two categories: valves for industrial and civil use. for all valves for industrial use (gate valves, globe valves, ball valves, butterfly valves, diaphragm valves) is requesting the certificate of conformity to the technical regulation n. 753 of 15/09/2009 "on the safety of machinery and equipment", which is a mandatory requirement for the manufacture and placing of same on the russian market.

the valves for domestic use, with the exception of the valves used in domestic systems gaseous fuel (boilers, heating systems, ovens, etc..) are not subject to mandatory certification. for valves for domestic gas demand is the declaration of conformity to the technical regulation n. 65 of 11/02/2010 "on safety of appliances burning gaseous fuels."


in the russian federation the valves according to their function are classified in the following way:
1) gost 9697-87 r-off valves, minimum requirements;
2) gost r 23866-87 valves with single or double seat, cage valves;
3) gost r 27477-87 check valves (non return);
4) gost 31294-2005 direct action safety (vent) valves.

and take that very often in the assessment of compliance so happens to certain types of valves, faucets, there are no shutters or reference standards. this is due, first, increasingly widespread use of new materials for the realization of the parts of the valve. all russian national standards, better known as standard gost, were created for the valves and taps in steel or cast iron. while today for the manufacture of valves are increasingly used non-ferrous metals, plastic and composite materials.
the position of the federal agency on technical regulation and metrology, the question is to be applied in the mandatory certification of valves existing rules only in order to meet the minimum safety requirements, applicable to each type of valve.

reference standards set for industrial valves:

37 0000 - valves
1) valves gost r 53402-2009. methods of examination and testing.
2) valves gost r 53672-2009. minimum safety requirements.
3) gost r 52760-2007 valves. distinctive coloring and marking requirements.
4) gost r 12.2.063-81 the set of rules on workplace safety. industrial valves. general safety requirements.
5) gost 5761-2005 valves for nominal pressure pn up to 250. general characteristics.
6) industrial valves gost 9544-2005. classes and rules for the keeping of the shutters.
7) gost 11823-91 valves for nominal pressure pn <= 25 mpa (250 kgf/cm2). general characteristics.
8) gost 12816-80 flanges, fittings and tubing for pressure from 0.1 to 20.0 mpa (1-200 kgf/cm2). general characteristics.
9) gost 12893-2005 valves with single or double seat, valve cage. general characteristics.
10) gost 13252-91 valves for nominal pressure pn <= 25 mpa (250 kgf/cm2). general characteristics.
11) gost 13547-79 valves for pressure ratings up to 2.5 mpa (25 kgf/cm2). general characteristics.
12) ball valves gost 21345-2005, conical and cylindrical valves for pressure ratings up to pn 250. general characteristics.
13) gost 21744-83 multilayer metal bellows. general characteristics.
14) gost 31294-2005 safety valves to direct action. general characteristics.


37 1000 - industrial valves and non-ferrous alloys
37 2000 - industrial valves made of cast iron
37 3000 - industrial ductile iron valves
37 4000 - industrial steel valves
1) gost 5761-2005 valves for nominal pressure pn up to 250. general characteristics.
2) industrial valves gost 5762-2002. valves for nominal pressure pn up to 250. general characteristics.
3) gost 31294-2005 safety valves to direct action. general characteristics.
4) gost 11823-91 valves for nominal pressure pn <= 25 mpa (250 kgf/cm2). general characteristics.
5) gost 12893-2005 valves with single or double seat, valve cage. general characteristics.
6) gost 13252-91 valves for nominal pressure pn <= 25 mpa (250 kgf/cm2). general characteristics.
7) gost 13547-79 butterfly valves up to 2.5 mpa (25 kgf/cm2). general characteristics.
8) gost 21345-2005 ball valves, conical and cylindrical valves for pressure ratings up to pn 250. general characteristics.
9) gost 26304-84 valves for industrial exports. general characteristics.
10) gost 28343-89 steel ball valves with flange. specifications.
11) gost 11881-76 regulators working in the absence of an external source of power. general characteristics.
12) gost 23941-2002 noise emission of machines. methods of determination of noise. general requirements.


37 6000 - industrial valves of non metallic materials
1) gost 12893-2005 valves with single or double seat, valve cage. general characteristics.
2) gost 26304-84 valves for industrial exports. general characteristics.
3) gost 5761-2005 valves for nominal pressure pn up to 250. general characteristics.
4) industrial valves gost 5762-2002. valves for nominal pressure pn up to 250. general characteristics.
5) gost 31294-2005 safety valves to direct action. general characteristics.
6) gost 11823-91 valves for nominal pressure pn <= 25 mpa (250 kgf/cm2). general characteristics.
7) gost 13252-91 valves for nominal pressure pn <25 mpa (250 kgf/cm2). general characteristics.
8) gost 13547-79 butterfly valves up to 2.5 mpa (25 kgf/cm2). general characteristics.
9) gost 21345-2005 ball valves, conical and cylindrical valves for pressure ratings up to pn 250. general characteristics.
10) gost 23941-2002 noise emission of machines. methods of determination of noise. general requirements