Summary

●LQ valve actuators are the new generation of our company and can be used for driving and controlling the butterfly valves,ball valves and plug valves (part-turn valves with 90° movement).With the functions of local control and remote control both.

●They are widely used in the fields such as oil,chemistry,power generation,water treatment,paper making.etc

●The enclosure protection is IP67,and the explosion proof class is d II CT6(LQ1,LQ2) and d II BT6(LQ3,LQ4,LQ4JS)

Characteristics

●Housing:Hard anodized Aluminum casting and external epoxy power coated against severe industrial environment.

●Gearing:Precisely machined double worm gear C/W minimum black-lashjow noise,high output torque.

●Self-locking:Provided double worm gearing to keep position of valve unchanged against reverse torque from valve.

●Motor:Specially designed and induction motor to generate high starting torque and high efficiency equipped with thermal protector to prevent damage from over heating.Insulation class F.

●External mechanical stopper:Prevents over run of travel angle when limit switch fails.

●Torque switches:Protect actuator from damage caused by overload from the driven valve over the whole travel, 1 each for open/close.

●Limit switches:Directly engaged with driving shaft to set accurate position of valve,supplying a dry contact signal.

●Terminal:Spring loaded push type terminal for tight wiring connection under severe vibration.

●Space heater:Anti-condensation.

●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.

●Handwheel:Manual operated .turn on-off valve directly when power off.

Electrical characteristics

●Automatic identify Phase sequence, phase failure protection.

●DC24V Voltage Class for remote control.

●Convenient and flexible wiring method.

●Selector with impenetrable design to improve the sealing of actuator.

●Working situation indicated by five dry contact signals to convenient monitor the DCS system.

●Monitoring relay supply comprehensive fault signal for DCS system.

●Selector padlocked according to requirements to prevent the failure operation.

Item 

选型表

Ordering information

The following details need to be supplied by user when ordering.

●Torque required(N.m),rotate speed (r/min)

●Application environment

●Power supply

●Mounting base with valve

●Electrical control required

●Other special requirements.

Remarks:All range actuators are dispatched with explosion proof plugs 2-NPT 3/4 fitted into the cable entries.It is the responsibility of the installer to ensure the appropriate cable adapters and packings with explosion proof.

Dimensions

Questions for ordering electric actuators and valves:

1. Voltage and control method of electric actuator

Answer: AC220V passive contact control

2. Torque required by electric actuator

3. Answer: 100Nm

4. Opening and closing time required for electric actuator

Answer: 30S

5. Flange connection of electric actuator

F03/F0511X11

6. If the whole set is purchased, what kind of valve do I need to match?

Answer: Ball valve

7. How is the valve connected?

Answer: Flange

8. What is the material of the valve body and valve seat?

Answer: SS304 valve body, PTFE rubber seal

9. What is the pressure of the valve?

Answer: 16 kg pressure

10. Electric actuator passed certificate

Answer: CE, SIL

11. The operating environment of the actuator (conventional)

Answer: Normally, -20°~60℃