1. 升降式止回阀为自动密封阀门，本体依靠介质流动而自动开关阀瓣，有效防止介质倒流动。Lift check valve is an automatic seal valve, the valve open/close relies on the flow of fluid. Effectively prevent media from flowing backwards.
The disc with S.S spring can keep the valve work in any direction.
Reasonable product structure, reliable sealing and long service life.
设计标准Design standard: DIN EN 13709:2003
结构长度Face to face dimension: DIN EN 558-1:1995
连接法兰Flanged ends: DIN EN 1092-1:2002
对焊连接Welded ends: DIN EN 12627
试验与检验Test & inspection: DIN EN 12266:2003
Thermal oil system, steam system, hot and cold water system etc.
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