Butterfly valve is a simple regulating valve
31 May 2019
The butterfly valve, also known as the flap valve, is a simple regulating valve ...
Hydraulic pressure reducing butterfly valve working principle
11 Jun 2019
The pressure-reducing butterfly valve has two types: direct-acting and pilot-ope...
Common non-metallic materials for butterfly valves
19 Jun 2019
1. nitrile rubber Nitrile rubber is generally used as a valve seat material for ...