This standard specifies the terminology, codes, technical requirements, inspection rules and markings, packaging, transportation and storage of automobile and trailer air pressure adjustment and protection devices. This standard is applicable to the air pressure adjustment protection position in the air system of automobiles and trailers that can be adjusted to achieve pressure limitation, overload or failure protection. Such as pressure regulating valve, pressure protection valve, relief valve, pressure limiting valve, safety valve, etc.
QC/T 37-1992 history
2015QC/T 37-2015 Automobile and trailer.Specifications and test methods of bench for pressure regulator and protector
1992QC/T 37-1992 General technical requirements for air pressure regulation and protection devices for automobiles and trailers