Spring loaded low lift external thread safety valve
USD $99 - $99 /Unit
Min.Order:1 Unit
A21F、A21H-C type are used for the equipment and pipeline of the air, ammonia, petroleum gas, etc. medium what the working temperature are less than 200℃.
A21W-P,R type are used for the equipment and pipeline of the quality with corrode gas and liquid medium what the working temperature are less than 200℃ 。Take for extrapressure protection devices.
KA21Y type are used for liquefied petroleum gas what the working temperature are less than 100℃.