Electro-hydraulic linear motion actuator is one type of the electro-hydraulic actuator. It is one indispensable instruments of local control in the industrial process automation control system. It is particular used for the inflammable and explosive tank, pipeline, terminal etc.
This actuator can be used in three forms: (1) Intelligent type, is suitable for the precise system of the variable speed control of the valve; (2) Regulation type: is suitable for the flow control and valve adjustment; (3) Switching type, is suitable for the fully open/closed conditions of the valve. This actuator can add other accessories and functions in the standard basis according to user’s requirements. It can achieve fast opening or closing of the valve in the fault or interlocking (ESD) conditions. The speed is ranged from 1 – 10s which meets the special requirements of various industrial process control system.
■Main technical parameters
●Supply voltage: 220VAC, 380VAC
●Input signal:
Analog signal: 4～20mA，1～5VDC
Switching signal: Passive dry contact
Digital signal
●Output signal:
Analog signal: Feedback of the valve position 4～20mA or 1～5V.DC
Switching signal: Valve position signal (fully open/closed)，Passive dry contact
●Control accuracy (Intrinsic error):±1%
●Hysteresis: ≤0.5%
●Dead zone: ≤0.5%
●Rated pressure of the hydraulic cylinder: 12MPa、16MPa
●Operated temperature: Standard type: -25℃～70℃
Low temperature type: -40℃～70℃
●Level of protection: IP66
●Anti-explosion level: ExdIIBT4
●Hydraulic fluid: 46#、68# antiwear hydraulic fluid（Northern region: To use low temperature hydraulic fluid (-25℃～-45℃) in winter
