GB/T 28778-2012 Replaced National standards

GB/T 28778-2012 Pilot-operated safety valves

GB/T 28778-2012 Pilot-operated safety valves

Publish Date: 2012-11-05 Implement Date: 2013-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 28778-2012

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: \nValve

ICS Name: Other valves

Publish Date: 2012-11-05

Implement Date: 2013-03-01

Pages: 24 pages

Scope

This standard specifies the terms and definitions of pilot safety valves, design, material and structural requirements, testing, determination of discharge volume, calculation of rated discharge volume, and determination of flow channel area, marking and lead sealing, etc.
This standard applies to pilot safety valves with a set pressure of not less than 0.1 MPa and a flow channel diameter of not less than 6 mm. This standard does not specify the applicable temperature range for pilot safety valves.

Development Information

Word Count: 46 Thousand words Pages: 24 pages

Superseded by the following standards

GB/T 28778-2023 Pilot operated safety valves

Referenced Standards

ISO 4126-7:2004 GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 9113-2010 Integral steel pipe flanges GB/T 9113.1-2000 Integral steel pipe flanges with flat face or raised face GB/T 9113.2-2000 Integral steel pipe flanges with male and female face GB/T 9113.3-2000 Integral steel pipe flanges with tongue and groove face GB/T 9113.4-2000 Integral steel pipe flanges with ring-joint face GB/T 12224-1989 General requirements for industrial steel valves GB/T 12224-2005 General requirements for industrial steel valves GB/T 12224-2015 General requirements for industrial steel valves GB/T 12241-2005 Safety valves—General requirements GB/T 12241-2021 Safety valves—General requirements GB/T 12716-2002 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on the threads GB/T 12716-2011 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads GB/T 17241.6-1998 Integral cast iron pipe flanges GB/T 17241.6-2008 Integral cast iron flanges GB/T 21465-2008 Terminology for valves JB/T 2769-2008 Valve components high pressure threaded flange JB/T 2769-1992 PN16.0-32.0MPa threaded flange is a type of flange with a pressure rating of 16.0-32.0 MPa. It is typically used for connecting pipes and equipment in a pressure vessel or pipeline system

Adopt standards

ISO 4126-4:2004

Related Standards

GB/T 8464-1998 Replaced

GB/T 8464-1998 Valves with female screw ends for water-heating system

Publish Date: 1998-08-10

GB/T 12244-2006 Replaced

GB/T 12244-2006 General requirements for pressure reducing valves

Publish Date: 2006-12-25

GB/T 12245-2006 Replaced

GB/T 12245-2006 Methods of performance test for pressure reducing valves

Publish Date: 2006-12-25

GB/T 12246-2006 Replaced

GB/T 12246-2006 Pilot operated pressure reducing valves

Publish Date: 2006-12-25

GB/T 20910-2007 Replaced

GB/T 20910-2007 Temperature/pressure safety valve for hot water supply system

Publish Date: 2007-04-18

GB/T 21384-2008 Replaced

GB/T 21384-2008 Electric water-heater safety valve

Publish Date: 2008-02-02