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A40S

Nominal size NPS: ½ ¾ 1 ~ 1½ 2

Connection: internal thread socket welding flange
Nominal pressure Class: 300
Pressure difference range bar: 0.3 ~ 40
PMA/TMA bar/℃ : 39.8/300
Shell material: A105



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Features

1.Hardened stainless steel with a high‑precision ground working surface ensures reliable steam sealing performance.

2.The valve seat drainage holes are arranged in a three‑port configuration for more stable operation and reduced seat wear.

3.The air jacket design effectively minimizes disc flutter.

4.Built‑in strainer for easy cleaning.

5.Valve seat and disc can be replaced online for convenient maintenance.

Application: Suitable for high‑pressure steam mains, tracing pipelines, and small heating equipment in petroleum, chemical, metallurgical, rubber, papermaking, printing and dyeing, and related industries.



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