الوصف

Product overview:

Electric butterfly Valve turns multi-turn rotational motion into partial rotational motion (*0°±5%) through reducer by electromotor. Provided with features of starting and closing steadily, large output torque, and the labor intensity of the operator can be greatly reduced, Especial for high pressure, heavy caliber Valves; It is suitable for being installed at the place can not be manual manipulation or hard to access, the valves are unlimited by height of installation, easy for remote control, make for the overall system automation; power source could be obtained easier than pneumatic or hydraulic source, the establish of electric wire is simpler than pneumatic or hydraulic line. But the structure is complicated, should be taken protection against the moisture and explosion. Normally used in the environment temperature under *0°C, and the relative humidity less than *0%.

Product features:

 Electromotor: Selected YDF EOV dedicated electromotor, according to relevant national regulations and technical standards, torque performance fully satisfy the valve requirements of loading,
  Reducing mechanism:Use the structure of primary spur gear, primary worm gear, primary NN type planetary reducer.
  Stroke control & position indication mechanism: The mechanism draw forth by output shaft (*0° rotary), limited cam, indicator total stroke *0° rotary. Potentiometer used for output of remote electric signal, use gear accelerating mechanism for transferring.
  Torque control mechanism: The outputting torque are controllable at the on/off side of valves. Torque signal based on the axial displacement while electric-driven compressing belleville spring, the type of torque is cam.
  Hand-operating mechanism: Hand-electric driven could be switched fully-automatic, for hand operating only need shake the hand wheel without switching operation, because of large outputting torque, added an primary NGW planetary reducer at the worm to reduce strength of hand wheel.
  Local control  knob: The control knob at one side of hand-wheel, could achieve the local electric control of device.

Adoption standards:

Performance Parameter:

Optional materials for parts

Ordering instruction

1. Ordinary type electric actuated device is suitable for the following conditions:
   1) Elevation not higher than ***0m
   2) Working environment temperature: *0°C~*5°C
   3) Working environment humidity not more than *0%
   4) Without strong corrosivity, inflammable, explosive mediums in the working environment.
   5) Short time working system, rated time *0min, *5min or *0min.
2. Users should indicate before ordering for the next working environment conditions:
   1) Environment temperature, temperature, elevation are not in accordance with above conditions.
   2) Air is serious pollution by dirt, smoke, corrosive particle, radioactive particulate, steam or salt mist.
   3) Encroached by mould or microorganism.
   4) Installed area in the danger of fire or explosion hazard.
   5) Suffered drastic vibration, impact or bump.
   6) Other abnormal working conditions.
3. Our company will provide special protective features device according to customers requirements.
4. Indicate the requirements of installation and operation while ordering, to assure choose appropriate electric device and relative mechanism or part