Characteristics of Valve Actuator
Strong applicability, not affected by ambient temperature
Wide range of output torque
Easy to control, can freely use DC, AC, shortwave, pulse and other signals, Valve Control Actuators so it is suitable for amplification, memory, logical judgments and calculations, etc.
can achieve Super miniaturization
Choice of Valve Drive mode
The choice of Valve drive mode is based on:
The form, specification and structure of the valve.
Valve opening and closing torque (pipeline pressure, valve maximum pressure difference), thrust.
Maximum ambient temperature and fluid problems.
Usage and usage times.
Opening and closing speed and time.
Stem diameter, pitch, rotation direction.
Power source parameters: electric power supply voltage, phase number, frequency, pneumatic pressure of gas source, hydraulic pressure.
Special considerations: Low temperature, anti-corrosion, explosion-proof, waterproof, Valve Control Actuators fire protection, radiation protection.
Classification of drive modes for valve drives
According to the movement mode of driving mechanism, the valve drive device is divided into two kinds of straight stroke and angular stroke.
According to the drive structure, the valve drive device is divided into:
Valve transmission mode
Manual drive handle Handwheel (including deceleration through intermediate gears)
Valve Control Actuators Spring lever type electric drive electromagnetic motor type pneumatic drive
1. Diaphragm type
2. Cylinder type
Shan Piston Cylinder Type
Shan Piston Rack Type
Shan piston connecting rod type
Shan Piston Fork Type
Shan Piston Screw Type
3. Vane type
4. Air Engine Type
5. Film and Ratchet combination
Hydraulic Cylinder hydraulic motor linkage driving electro-hydraulic linkage