Full Description

This Japanese Industrial Standard specifies the spring loaded 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. (1) Those to be used for releasing the pressure of liquid (2) Those of under 0.1 MPa (1 kgf/cm*2) and over 42.9 MPa (429 kgf/cm*2) in set pressure (3) Those of particular construction for vehicles and the like (4) Those of similar to the unloader to be used for pressure regulation (5) Those of less than 15 mm in seat diameter