Explosion - Proof Electric Actuator LQ4JS - 200/250 Electric Actuators

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Explosion - Proof Electric Actuator LQ4JS - 200/250-Motor Unit

Product Description: LQ series of part of the rotary valve electric device is my latest dev
Product Specs

Product Description:

LQ series of part of the rotary valve electric device is my latest development of the replacement products. For butterfly valve, ball valve, plug valve and throttle to do 90 ° rotation of the valve, for the valve to open, close or adjust control, remote control, but also on-site operation.

Widely used in electric power, metallurgy, petroleum, chemical, food, textile, paper, pharmaceutical, water and sewage treatment industries.

The protection class of the product is IP67, and the explosion-proof grade of the isolated product (Ex in the model) is d ⅡBT4.

1. This product complies with JB / T8219-1999 "industrial process measurement and control system with the valve electric device" requirement.

2. Ambient temperature: -20 ~ 60 ℃

3. Altitude not more than 1000m.

4, The relative humidity of the environment is not more than 90% (25 ℃).

5. The working environment does not contain strong corrosive media shall not be in the explosive atmosphere of the use of mixed gas.

6. Short-term work system: 30 minutes

7. No strong vibration conditions.

Mechanical Features:

1. Shell: aluminum alloy shell after oxidation, polyester powder coating, can adapt to a variety of harsh conditions;

2. Transmission: with accurate double worm gear mechanism, low noise, high output torque;

3. Self-locking function: double worm gear mechanism with self-locking function to prevent reverse;

4. Motor: specially designed induction motor, built-in thermal protection switch, to prevent motor overheating, insulation class for the F-class;

5. External mechanical limit: to prevent the limit switch failure when the trip;

6. Torque switch: When the valve torque is too large to provide overload protection, open and close the moment of a;

7. Limit switch: can accurately locate the valve position, auxiliary switch can provide dry contact signal;

8. Terminals: spring-tight terminals, wired and can be used in vibrating environments;

9. Dryer: dryer can prevent water vapor condensation;

10. Clutch mechanism: close the switch handle can be hand wheel operation, power automatically reset;

11. Handwheel: With handwheel operation, the valve can be turned on or off during a power outage or emergency

Electrical Features:

1. Automatic identification phase sequence, power protection;

2. Remote control using DC24V voltage level;

3. Convenient and flexible way of user wiring;

4. Live button light box knob with no penetration design, improve the machine sealing characteristics;

5.5 passive electric shock instructions motor operating conditions, to facilitate the DCS system on the computer monitoring;

6. Set the electric device to monitor the relay, provide integrated fault signal for the DCS system;

7. The conversion knob can be locked with a conventional padlock as needed to prevent misuse.

Features and Benefits

  • Compact Design
    The Luobai rack & pinion pneumatic actuator produces linear torque output in a compact design utilizing the same body and end caps for double-acting and spring-return units.
  • Degree of Travel
    The standard angle of rotation is 90°. Luobai actuators feature dual travel stops that provide ± 10° stroke rotation on both the opening and closing phases of the actuator stroke. 110° of travel in a standard 90° actuator!
  • Honed Bore for High Cycle Life
    Extruded aluminum body is internally machined and honed to exact specifications. Honing prevents dry spots from forming within the actuator bore and therefore eliminates premature seal failure—a critical aspect to long cycle-life. All internal and external surfaces are hard anodized for corrosion resistance, with all units permanently lubricated at the factory.
  • High-Cycle Bearings
    Shaft bearings isolate the pinion gear from the housing and support the shaft for high-cycle applications. Many competitive manufacturers do not provide this critical feature.
  • High Cycle-Life Wear Pads
    Pistons incorporate double wear pads (skates) to separate the rack from the actuator wall and serve as both guide and wear bearings.
  • Rugged Tooth Design
    The pinion teeth are engaged the full length and stroke of the piston, and designed for the toughest flow conditions. The pinion height allows manual override without needing to remove the indicator.
  • Multiple Output Shafts
    The female pinion drive is standard with a double-square output drive, and optional with a double-D drive, keyed drive and designs to meet your specific requirements.
  • Namur Mounting
    Namur VDI/VDE 3845 and ISO 5211 dimensions on all sizes. No special blocks are required to mount solenoid valves, limit switches or positioners.
  • High Visibility Beacon
    External open/close indicator as standard, available for all rotations.
  • Safe Preloaded Spring Cartridges
    Epoxy-coated special steel springs are pre-loaded with non- metallic materials. The stainless steel end-cap fasteners are extra-long to allow for spring relaxation. All parts are corrosion-resistant.
  • Alternate Operating Media
    Air pressure operation from 40 to 150 psi (2 to 10 Bar). Water, nitrogen and compatible hydraulic fluids may also be used to power the actuator.
  • Stainless Steel Fasteners
    All external fasteners are corrosion-resistant stainless steel.
  • Optional Accessories
    Luobai offers a wide range of adapters for many different types of valves—including butterfly valves, ball valves and plug valves—as well as a variety of pneumatic and electric automation accessories suitable for diverse industrial environments.
  • Quality Assurance
    100% of all units are factory pressure and leak tested, and individually boxed for shipment.
  • Traceability
    All units are externally marked with a progressive traceable serial number.
  • Best Warranty In The Industry
    Luobai products are covered by our unlimited cycle-life warranty. Contact your local distributor or sales representative for more details.
For Immediate Service Please Call: 0577-8689-8000
Add:No.2410 Road 2 Street 11BinHai District Longwan Zone,Wenzhou China Tel: 0577-8689-8000 8689-8555 8562-1222
Fax: 0577-8562-6588
E-mail: xtdp@luobai.org
Web: www.luobai.org,www.reedacv.com,www.reedacv.cn
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