人妻聚会后躲雨被中出电影_国产chinesehdxxxx中文_女人真人下部毛图片欣赏_久爱成疾在线视频

Check Valve

-Size:DN15~DN400
-Working temperature:-15~550℃
-Working pressure:PN10~PN100
-Body:Ductile iron、Carbon Steel、SS304、SS316、SS304L、SS316L
-Trim:Carbon steel、SS304、SS316、SS304L、SS316L
-Seat:EPDM、PTFE、Hard metal seal
-Medium:Water、Steam、Nitric acid、Oil


Ordering hotline:021-54150349

Immediately consult
  • Product introduction
  • Product parameters
Check valve is also called one-way valve or nonreturn valve. Its function is to prevent medium backflow in pipeline. The opening and closing parts are opened or closed by the medium flow and force to prevent the medium backflow. Applied on the pipeline for one-way flow of medium, only allow the medium to flow along one direction to prevent accidents and flow from the inlet side to the outlet side. When the inlet side pressure is lower than the outlet side, the valve disc automatically closes the channel under the action of fluid pressure and its own gravity.
2. Stem
3. Disc
4. Body
5. Spring
6. Fixed collar
7. Packing