GB/T 21386-2008 (English Version) PDF

Standard No.: GB/T 21386-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 21386-2008

Scope: This standard specifies the terms and definitions, structural forms, technical requirements, test methods, inspection rules, marking, packaging, transportation and supply requirements of proportional pressure reducing valves. This standard is applicable to nominal pressure PN10～PN25, nominal size DN15～DN300, working temperature not higher than 100℃, working medium is water or medium with physical properties similar to water.

GB/T 21386-2008 Referenced Document

GB/T 12224 General requirements for industrial steel valves*， 2015-12-10 Update
GB/T 12225 General purpose industrial valves.Specification of copper alloy castings*， 2018-05-14 Update
GB/T 12226 General purpose industrial valves.Specification of flake graphite iron castings
GB/T 12227 General purpose industrial valves.Specification of spheroidal graphite iron castings
GB/T 12229 General Purpose industrial valves.Specification of carbon steel castings
GB/T 13927 Industrial valves—Pressure testing*， 2022-12-30 Update
GB/T 15530.1 Cast copper alloy integral flange*， 2008-08-25 Update
GB/T 15530.8 Specifications for copper alloy and composite flanges
GB/T 17219 Standard for safety evaluation of equipment and protective materials in drinking water system
GB/T 17241.6 Integral cast iron flanges *， 2008-08-25 Update
GB/T 17241.7 Specifications for cast iron pipe flanges
GB/T 7306.1 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 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 8464-1998 Valves with female screw ends for water-heating system
GB/T 9113.1 Intergral steel pipe flanges with flat face or raised face
JB/T 308 Valves model designation method
JB/T 7928 Industrial valves.Delivery specification*， 2014-07-09 Update