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Help CenterSlanting Seat Slowly-Closing Non-Return Butterfly Valve
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Specifications
Slanting Seat Slowly-Closing Non-Return Butterfly ValveSlanting Seat Slowly-Closing Non-Return Butterfly Valve
Description
Slanting seat slowly-closing non-return butterfly valve is designed to installed at outlet of pump to prevent water and other medias flowing back or avoid destructive water hammer damaging valves and pipes etc. water supply system,when stop pumping or accidents caused by powder cut.
Structure
Slanting type valve seat,double eccentric wedges
All hard metal sealing. Metal+NBR sealing is available too if customers need.
This valve has a hydraulic slowly-closing device,there are quickly-closing and slowly-closing two closing stages .
Application
It is applicable for clean water,sewage and water with low concentration slurry.Valve DN size:250-2400mm,working pressure is not more than 2.5MPa.
Properties and Features
Standard:
BS,DIN,API,JIS,GB according to customers requirement.
Main components and Materials
Component name |
Materials |
Valve body |
Ductile Iron,20G Carbon steel |
Wedge |
WCB |
Valve shaft |
1Cr18Ni9Ti |
Bearing |
Complex self-lubricating bearing |
Sealing |
SS304/EPDM, SS304/SS316 +Flexible graphite, Hard Alloy/SS316+Flexible graphite |
Sealing parts |
EPDM,NBR |
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