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Twin spring type safety valve

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A38Y-16C/25/40, A43H-16C/25/40, A37H-16C/25/40

This safety valves are used for the equipment and pipeline of the steam, water etc. medium what the working temperature are less than 350℃.Take for extra pressure protection devices.

Flange connecting dimensions of comply with Standard series one of JB/T ......94.

Explanation of materials for main parts

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

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.


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