How to choose the valve standard code

MT Coal Industry Standards

GB / T National Recommended Standard

HB Aviation Industry Standards

GBn national standard (internal distribution)

QJ Aerospace Industry standards

GJB national military standards

QB, SG Ministry of Light Industry standards

ZB Industry Standards (Professional Standards)

JZ, JG urban and rural Environmental Protection Department standards

ZBn Industry Standard (Internal Distribution)

CB China Shipbuilding Corporation standards

ZJB professional military standards

LD Labor and Personnel Standards

JB Machinery Industry Standard (formerly) Machinery Industry Ministry standards

JC National Building Materials Bureau standards

JB / Z (former) Ministry of Machinery Industry guidance document

JJC National Bureau of Metrology standards

EJ (former) Ministry of Nuclear Industry standards

CAS China Association for Standardization standards

YB Metallurgical Department standards

CVA China valve industry standards

HG Chemical Industry standards

Q / TH (former) Machinery Industry Ministry of Chemical General Machinery professional standards

SY (former) Ministry of Petroleum standards

JB / TQ Machinery and Electronic Industry General Machinery Industry Internal Standards

SD hydraulic power standard

H high pressure pipe, fittings and fasteners universal design standards

Foreign standard code

ISO international standards

AISI American Iron and Steel Institute standards

ANSI American National Standard

API American Petroleum Institute standards

BS British National Standard

MSS American Valve and Fitting Manufacturer Standards Association standard

DIN German national standard

AWS American Welding Association standard

NF French national standard

ASI American Society of Standards

JIS Japanese Industrial Standards

MIL US military standards

ASME American Society of Mechanical Engineers standards

JPI Japan Petroleum Institute standards

ASTM American Society for Testing and Materials Standards

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