SD series electric actuator is the terminal control device in industrial process measurement and control system. It can transform the system control signal into the output displacement (quarter turn displacement, multi-turn displacement or linear displacement), output torque or thrust to control the position of closure member and other modulating device in the valve. Thus the controlled medium will work in condition regulated by the system.
Our company absorbs technology of French Bernard Company and produces the advanced product in the world_SD series electric actuator. Its major components are all imported. The parts processing, components selection, the whole machine assembly all are carried out strictly according to the process and technical requirements. The whole machine test strictly conforms to national standard.

SD series electric actuator has multiple functions, steady quality, high precision, various specification and light weight. It is safe and reliable. It is flexible and convenient to modulate and install. It plays an important part in industrial process control system and is widely used in electricity, metallurgy, petrochemical, building materials, heating, light industry, and water treatment.
1. The input signal: 4--20mA DC
2. The input resistance: 250 ohm
3. Input passage: 1
4. Basic error: 1%, 2.5%
5. Deviation: 1.5%
6. Deadline: 0.5%--3% continuously adjustable
(according to the indication of system)
7. Damping characteristic: No-oscillating
8. Power supply: Three-phase 380V~50Hz, single-phase 220V~50Hz for selected
9. Working conditions: Temperature: Integral-type -10° C-- +55° C, separate-type -25° C -- +70° C
Humidity: ? 85%The surrounding air does not have the corrosive elements
10. Protection rank: It conforms to the IEC145 IP65 standards. (Excluding the separate-type GAMX with waterproofing and dustproof functions fixed in rooms), bus type and intelligent type IP67.
11. The cut-off signal protection: It can be divided into all-on, all-off and home position according to your instructions.
Generally it is set into the home position when it is manufactured.