Flange type butterfly valve is developed combined with the advantage of the metal seated butterfly valve and semi-ball valve . The flange type butterfly valve can be used at inlet and outlet of the circulating water system,piping network system,recovery system,high water tank,sewage system and any other back flow preventing position to shut off or control the pipeline.
Features
1.Designed with bidirectional sealing structure,the installation of the flange type butterfly valve will not be restricted by the direction of the fluid.
2.Since the metal seated flange type butterfly valve is offered with self-sealing device,reliable sealing performance can be realized under the pressure from medium.
3.When the valve is installed on the reversed direction of the fluid ,powerful specific pressure of sealing can be obtained as valve seat and fluid formed annual contacting area.
4.The metal seated flange type butterfly valve has long service life due to wear compensation.
5.The unique rotational structure ,as well as the sphere-conical sealing surface of the valve seat,makes for it has self-cleaning function.The solid particles will be crushed when the bidirectional flange type butterfly valve is opened or closed.
Technical Specifications
Size ：12"
Pressure：PN16
Body material ：WCB
Sealing material：Hard alloy
Connection type：Flange
Operating type：Worm gear
Applications
Municipal engineering
Circulating water system
Water treatment system
Fire extinguisher system
