|Gray Iron Casing WCB, LCB, Or Ductile Iron Casing
|-20 ℃ ~120 ℃ For High Temperature Up To 320℃ For Low Temperature Down To -40℃
|Water Plants, Chemical Plants, And Power Plants And For General Industrial Applications
Casing Butterfly Valve Gearbox,
Butterfly Quarter Turn Gearbox,
Handwheel Butterfly Valve Gearbox
Handwheel Quarter Turn Casing Butterfly Valve Gearbox
1 . Descriptions with Gray Iron Casing Handwheel Gear Operator:
Handwheel Gear Operator is mainly used to cooperate with the starting actuator, and 2inch Handwheel Gear Operator is divided into double-acting actuator and single-acting actuator
SJ series partial-turn gear operators are widely used in water plants, chemical plants, and power plants and for general industrial applications. SJ single-stage models have a speed ratio varying from 24:1 to 80:1 and torque ranging from 170NM to 2500NM.
Shell--refers to the cover is made of hard aluminum alloy, with anodizing treatment and polyester powder coating. High corrosion resistance, waterproof grade is IP67. IP68 and explosion-proof type are optional.
|Handwheel Gear Operator
|-20 ℃ ~120 ℃
1.Position indicator-installed on the central shaft, used to observe the position of the valve. In order to avoid deposition and facilitate observation, it is designed by convex lens.
2.Heater and thermostat-used to control the temperature inside the actuator to avoid internal humidity
3.Limit switch-two mechanical and electronic dual limit. The mechanical limit screw is adjustable, safe and reliable. The electronic limit switch is an SPDT controlled by a cam. The position of the limit switch can be set accurately and conveniently through simple adjustments.
4. Torque switch-provides overload protection (except OHQ 005/008/010), and when the valve is blocked, the power is automatically cut off to avoid damage to the valve and actuator. (Factory setting, no need for user modification)
5.Self-locking-precision worm gear drives high torque, low noise (up to 50dB) and long service life. The self-locking function prevents reverse rotation, ensuring stability and reliability. The high-efficiency lubricating oil has been added before leaving the factory and no longer needs to be added.
Contact Person: Varian