This Korean Industrial Standard specifies the spring loaded safety valves (hereafter, when no particular distinction of uses for steam or gas is required, referred to as "safety valves") for steam and spring loaded safety valves for gas of direct operation type by cylindrical coil spring. However, those given in the following are not included.
a) Those to be used for releasing the pressure of liquid
b) Those of under 0.1 MPa {1 kgf/cm2} and over 42.9 MPa (429 kgf/cm2} in set pressure
c) Those of particular construction for vehicles and the like
d) Those of similar to the unloader to be used for pressure regulation
e) Those of less than 15 mm in seat diameter
Remarks 1. The units and numerical values given in { } in this Standard are based on the traditional units, and are appended for informative reference. 2. The International standard corresponding to this Standard is given in the following: ISO 4126 Safety Valves - Part 1 : General Requirements
KS B 6216-1998 history
2023KS B 6216-2023 STEAM BOILERS AND PRESSURE VESSELS - SPRING LOADED SAFETY VALVES
0000 KS B 6216-1998(2018)
1998KS B 6216-1998 STEAM BOILERS AND PRESSURE VESSELS - SPRING LOADED SAFETY VALVES
1988KS B 6216-1988 STEAM BOILERS AND PRESSURE VESSELS - SPRING LOADED SAFETY VALVES