Detailed Product Description

Shanghai DaTian Valve Pipe Engineering Co., Ltd.

Three way Electric control valve

Detailed Product Description :

1)  Electrical regulating valve consists of two parts, straight stroke electrical actuator and

regulating mechanism. You could find three structural types of valve from fig.1, 2 
2)  For structure and principle of electrical actuator, please refer to related instructions of the

product. .
3)  The apparatus is equipped with electrical operator and could realize two directions no

disturbance switch of manual and automatic. It also could be used as remote controller. With

indicating lamps of manual, automatic and ammeter, it could indicate valve level.
4)  There are two action methods for one seat valve, electric open and electric close. When input

signal increase, valve turns from closing position to opening position gradually, it is electric

open type. When input signal increase, valve turn from open position to closing position gradually,

it is electric close type. Provide according to electric open type ex. Works.
5)  For three way valve, because open and close in valve exist at the same time, so it has no

difference of electric open and electric close.
6)  Working principle: electrical regulating valve receive inputting current signal from regulating

apparatus, action through electrical actuator, occur axial pushing force. Change flow area between

valve core and valve seat ( or valve plug ) through connecting bar till feedback signal  current of

at position of electrical actuator equal to input signal current to reach the purpose of adjust

technological parameters or change flowing direction of medium automatically.