- 0-90rotation angle
- Match butterfly valve, ball valve, shutter type valve, damper, baffle and plug valve...3.
- Modbus Hart Profibus1
.Product Description
QT type valve actuators is the latest development of the new generation products. Suitable for control butterfly valves, ball valves, plug valves, and so do the 90rotary valve. the product box with die-cast aluminum, beautiful appearance, small size, light weight, high efficiency, high reliability, high protection performance, low noise characteristics. Field operations can also be remotely controlled. It can be widely used in petroleum, chemical, power plants, water treatment, paper and other industries. There are explosion-proof products, the overall pattern, the overall adjustment type and other types. this product has protection class IP67,explosion proof grade products for the dII BT4
Examples of text and internal structure:
Handwheel
the handwheel directly drives the output shaft for rotation, for debugging and emergency operation.
Hand/Auto switch
by operating the hand /auto lever, manual drive is engaged. Energization of the motor automatically re-engages power operation. (the hand /auto lever is lockable in order to prevent from mistaken operation.)
Motor
the motor with special high torque low inertia can be dismantled independently. It has a internal thermal protector to prevent damage caused by overheating of the motor - insulation class F
Cam and limit switch
Tighten with two screws and simple setting. Each cam can be set separately. Once set, each cam will be on the position forever.
Terminal block
Enough terminal for customer's convenience (Max 22 points). Proven reliability and tight wiring connection
Position indicator
the mechanical indicator can continuously indicate the degree of valve opening, Which consists of multi-stage gears with adjustable gears to accommodate a wide range of revolutions.
Torque switch
Torque limit. When the actuator outputs torque, the main worm with the butterfly spring group at both ends is subjected to thrust. the butterfly spring is compressed and the worm produces an axial displacement proportional to the output torque. the magnitude of the displacement is converted from the crank to the angle of rotation of the torque shaft. over-torque protection or over-torque fault signal function is achieved by an adjustable cam mounted on the torque shaft that activates the corresponding torque switch
Moisture proof heater
A heater is installed inside the actuator to remove internal condensation and damage to electrical components.