Specifications

Slanting 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