Liquefied petroleum gas, Back-flow safety valve
AH42F, A42F type are applicable in liquid phase outlet pipes with an operating temperature range of -40-80℃. When the inlet and outlet differential pressure is larger than 0.5MPa, the liquefied gas will return to the gas rank automatically.
Spring Loaded Full Bore Type With Lever Flange Safety Valve
A48Y type is used for the equipment and pipeline of the with steam and air etc medium what the working temperature are less than 350℃. A44Y type is used for the equipment and pipeline of the with air and petroleum gas medium what the working temperature are less than 300℃. Take for extra pressure protection devices.