CJ/T 404-2012
Anti-cavitation pressure regulating valve (English Version)

Standard No.

CJ/T 404-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

Professional Standard - Urban Construction

Latest

CJ/T 404-2012

Scope

This standard specifies the terms and definitions, structural type, product model, parts materials and structure, removal, test methods, inspection rules, marking, packaging, transportation and storage of anti-cavitation large pressure difference adjustable pressure reducing valves. This standard is applicable to anti-cavitation large pressure difference adjustable pressure reducing valves for water supply with nominal sizes from DN50 to DNI200, nominal pressures from PN10 to PN50, and medium temperatures less than or equal to 60°C.

CJ/T 404-2012 Referenced Document

• GB/T 1047 Pipework components—Definition and selection of nominal size*， 2019-03-25 Update
• GB/T 1048 Pipework components—Definition and selection of nominal pressure*， 2019-05-10 Update
• GB/T 10612 Industrial plate screens--Thickness below 3mm-Round and square holes
• GB/T 12 Cup head square neck bolts*， 2013-06-09 Update
• GB/T 1220 Stainless steel bars
• GB/T 12220 Industrial valves.Marking*， 2015-05-15 Update
• GB/T 12225 General purpose industrial valves.Specification of copper alloy castings*， 2018-05-14 Update
• GB/T 12227 General purpose industrial valves.Specification of spheroidal graphite iron castings
• GB/T 12230 Specifications for stainless steel castings for general valves*， 2023-05-23 Update
• GB/T 12244 General requirements for pressure reducing valves
• GB/T 1239.2-2009 Cold coiled helical springs technical specifications.Part 2:Compressions spring
• GB/T 1527 Drawn tube of copper and copper alloys*， 2017-07-12 Update
• GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
• GB/T 3098.15 Mechanical properties of fasteners—Stainless steel nuts*， 2023-05-23 Update
• GB/T 3098.6 Mechanical properties of fasteners—Stainless steel bolts，screws and studs*， 2023-05-23 Update
• GB/T 4956 Non-magnetic coatings on magnetic substrates--Measurement of coating thickness-Magnetic method
• GB/T 6739-2006 Paints and varnishes-Determination of film hardness by pencil test
• GB/T 7307 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads
• GB/T 7993 Vitreous and porcelain enamel--Enamelled articles for service under highly corrosive conditions-High voltage test
• GB/T 8464 Iron, copper and stainless steel threaded connection valves*， 2023-03-17 Update
• GB/T 8923-1988 Rust grades and preparation grades of steel surfaces before application of paints and related products
• GB/T 9286-1998 Paints and varnishes--Cross cut test for films

CJ/T 404-2012 history

• 2012 CJ/T 404-2012 Anti-cavitation pressure regulating valve