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Wenzhou Heli Automatic Meter Co., Ltd.

Explosion-Proof Electric Actuator, Electric Valve Actuator, Valve Actuator manufacturer / supplier in China, offering Lq Series Explosion-Proof Electric Actuator (LQ1), Dynamic Equilibrium Valve with Actuator, Electric PVC Ball Valve and so on.

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Supplier Homepage Product Electric Actuator Lq Series Explosion-Proof Electric Actuator (LQ1)

Lq Series Explosion-Proof Electric Actuator (LQ1)

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Ningbo, China
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: LQ1
  • Power Supply: AC220V
  • Temperature: Low Temperature
  • Trademark: HELI
  • Origin: Wenzhou, Zhejiang, China
  • Certification: ISO, CE
  • Power Source: Electric Power
  • Material: Alloy
  • Specification: CE, ISO, SGS
Product Description
     LQ valve actuator are the new generation product of our company and can be used for driving and controlling the butterfly valves, ball valves ,plug valves (part-turn valves with 90°movement).
The actuators can be either remotely controlled, or locally.
     They are widely used in the fields such as oil ,chemistry ,power generation, water treatment, paper making.
     The protection class is IP-67. And the explosion proof class is dIIBT4(with letters of Ex).
     This operation manual is applied for General type .For special type a actuators, the additional
Manual will be provide.


1 . Housing: Hard anodized Aluminium casting and external epoxy power coated against severe
Industrial environment.
2 . Gearing: Precisely machined double worm gear C/W minimum black-lash ,low noise, high output torque.
3 . Self-locking: Provided by double worm gearing to keep position of valve unchanged against reverse torque form valve.
4 . Motor: Specially designed and induction motor to generate high staring torque and high efficiency equipped with thermal protector to prevent damage from over heating. Insulation class F.
5 . External mechanical stopper:Prevents over run of travel angle when limit switch fails.
6 . Torque switches: Protect actuator from damage caused by overload from the driven valve over the whole travel ,1each for open/close.
7 . Limit switches: Directly engaged with driving shaft to set accurate position of valve, supplying a dry contact signal.
8 . Terminal: Spring loaded push type terminal for tight wiring connection under severe vibration.
9 . Space heater: Anti-condensation.
10 . Manual override: Auto/Manual switchable lever and handwheel engagement for emergency manual operation. Drive force automatically resorted by motor start ,unless lever padlocked to prevent this occurring.
11 . Handwheel: Manual operated ,turn on-off valve directly when power off .

Electrical characteristics

1 . Automatic identify Phase Sequence ,Phase Failure Protection.
2 . DC24VVoltage Class for remote control.
3 . Convenient and flexible for wiring way .
4 . Impenetrable design to improve the sealing of actuator for local button box.
5 . Five pieces dry contact signal indicate the sealing of actuators ,conveniently monitor DCS system.
6 . Setting monitoring relay ,supplying comprehensive fault signal for DCS system.
7 . For turn button, can sue common padlock locking according to requirements to prevent the false operation.
Number of handwheel
Case materialAluminium die-casting components
Position limitingMechanical limit ,travel switch limit
Protection class IP-67
Surrounding temperature-20ºC--70ºC
Ambient humidityRelative Humidity >90%(25%)
Insulted resistance≥100MΩ
Insulted strength1500V/1Min(AC220V)   2000V/1Min(AC380V)
Optional functionExplosion proof /Precision Potentiometer
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Ms. Cheryl Huang
Foreign trade manager
To: Ms. Cheryl Huang

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