An electric butterfly valve is a valve driven by an electric motor and is used to control the flow of liquid or gas. It usually consists of butterfly valve, motor, transmission device and control system.

Butterfly valves and gate valves are two types of valves commonly used in industrial and municipal water conservancy applications. They have obvious differences in structure, function and application. This article will discuss the differences between butterfly valves and gate valves in detail from the aspects of principle, composition, cost, durability, flow regulation, installation and maintenance.

Hard seals are made of metal, such as metal gaskets, metal rings, etc., and sealing is achieved through friction between metals. Therefore, the sealing performance is relatively poor, but our ZFA valve manufactured multi-layer hard seal triple offset butterfly valve can achieve zero leakage . Soft seals are made of elastic materials, such as rubber, PTFE, etc. For some materials with high temperature and high pressure, which cannot meet the process requirements, hard-sealed butterfly valves can solve the problem.

The pneumatic butterfly valve is composed of a pneumatic actuator and a butterfly valve. Air actuated butterfly valve uses compressed air as the power source to drive the valve stem and control the rotation of the disc around the shaft to open and close the valve.