A37H弹簧双联式安全阀主要零部件材料 Explanation of materials for main parts

A38Y, A43H, A37H safety valve, except the three-ways style (material WCB), the materials of other parts is the same as A47H, A48Y type spring loaded type safety valve.

A38Y、A43H、A37H型双联安全阀是在Y型接头上装设两个同样规格的A48Y或A47H型安全阀而构成，其公称通径系列指Y型接头进口通径，其组合情况如下表：
A38Y, A43H, A37H type twin safety valve is composed of two A48Y or A47Y type safety valves with the same specifications. Which are fixed on a Y-shaped joint. The nominal diameter is the inlet diameter of the Y-shaped joint. Here is the table to show its combination.
外形尺寸和连接尺寸 Dimensions (mm)