How To Choose Electric Butterfly Valve Electric Actuator

How To Choose Electric Butterfly Valve Electric Actuator

Date:Feb 20, 2019

Many of the electric butterfly valves are damaged by the seals, which causes the electric butterfly valve to exhibit poor sealing during the time of operation. This is generally caused by the impact and corrosion of the liquid at the moment of the sealing surface. When the liquid is at a certain speed, the fine particles contained in the inside will impact the sealing surface for a long time, which may cause partial performance damage, so that the entire seal is not tight, and leakage is formed.

2 (1)

The production materials and processing quality of the sealing surface are the reasons for the application of such a situation. The quality of the sealing surface is mainly manifested in the appearance of cracks, pores and pinching. In addition, human error operation, unreasonable device, and inattention to protection are also an important cause of the problem of electric butterfly valve sealing. Such situations can be avoided through reasonable management.


As a component used to complete the on-off and flow control of pipeline systems, electric butterfly valves have been widely used in many fields such as petroleum, chemical, metallurgy, and hydropower. Among the well-known electric butterfly valve skills, the sealing method is mostly sealed, and the sealing material is rubber, polytetrafluoroethylene, and the like. Because of the constraints of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure, corrosion resistance and wear resistance.


The electric butterfly valve is a combination of butterfly valve and electric equipment, so how to correctly select the electric equipment after the electric butterfly valve is determined is an important factor related to whether the engineering requirements can be satisfied in practice. In the selection of electric equipment, not only the aforementioned working environment, electrical control and general skill functions should be considered, but also the inductive skill function of the electric butterfly valve equipment should be fully considered.


Previous: Electric Actuator Selection For Electric Butterfly Valves

Next: What Are The Precautions For Common Operation Of Electric Valves?