EP Series Valve positioner

EP Series Valve positioner

Overview of EP Series Valve positioner

EP Series Valve positioner is the main accessory of the regulating valve, which is usually used together with the pneumatic regulating valve. It receives the output valve positioner signal from the regulator, and then controls the pneumatic regulating valve with its output signal. When the regulating valve acts, the displacement of the valve rod is fed back to the valve positioner through the mechanical device, and the valve position status is transmitted to the upper system through the electrical signal. Electric valve positioner is the main accessory of control valve.

Model of  EP Series Valve positioner

EP-6111, EP-6121, EP-6122, EP-6311, EP-6321, EP-6322

EP-3111,  EP-3121, EP-3122, EP-3311, EP-3321, EP-3322

Advantage of  EP Series Valve positioner

1. It has strong compatibility and interchangeability, and has a wide range of application.

2. The pneumatic power is large, the action speed is fast, the multi loop force balance structure is adopted, it is not easy to oscillate, and the action performance is stable and reliable.

3. by exchanging the cam feedback device, it can be easily exchanged to select output characteristics other than standard characteristics.

4. When the single acting actuator needs reaction control, the positive acting amplifier can be easily transformed into a reaction amplifier.

5. the through needle of the constant throttle mechanism can act to dredge the throttle hole and keep the working air path unblocked.

6. Pressure proof and explosion-proof type. The signal input end connector and coil are sealed in a pressure proof and explosion-proof structure. During maintenance and stroke adjustment, the positioner shell can be removed in the field explosion-proof area.

7 intrinsically safe, special junction box and coil intrinsically safe structure. The torque coil can be applied to all hazardous gas places (including zone 0) when used in combination with a special Zener safety helmet.

8. It is easy to adjust and install. It is not necessary to open the shell to adjust the zero point. It can be attached with mounting plates suitable for different actuators according to user requirements. Adjustment and maintenance can be carried out online.

Main tech of EP Series Valve positioner

Input impedance: 250 Ω± 5% (input signal 4 ~ 20mA DC, ambient temperature 25 ℃);

Output characteristics: linear (standard), equal percentage and quick opening (optional)

Output pressure: 0 ～ 0.7MPa

Air consumption: single acting 5nl/min (air supply pressure 0.14MPa, output pressure 50%);

Ambient temperature: Standard -20 ~ +80 ℃

Explosion proof type: pressure proof explosion-proof type (explosion-proof type D) ex D Ⅱ BT6

Outdoor waterproof type (increased safety type E) ex e Ⅱ T6

Intrinsically safe (intrinsically safe I) ex IA Ⅱ CT6

Protection grade: IP55, IP65

Relative humidity: ≤ 90%rh

Shell material: die cast aluminum alloy

Note: Any special style or question regarding EP Series Valve positioner, generously contact the maker for more details.