Product
PSQ electric actuator
PSQ actuator is a product launched by the manufacturer of PS Automation GmbH actuator in Germany. PSQ series angle stroke electronic integrated electric actuator, small size, light weight, strong function, intelligent operator, easy to operate. PSQ series angular stroke electric actuator, with 90 degree angular stroke output torque of 50Nm-3000Nm, is suitable for 90 degree rotary valves (such as ball valves, butterfly valves) and valve switch or regulation control.
Main features of PSQ electric actuator:
1. Integrative structure design, position transmitter and servo amplifier as two independent components can be directly loaded into the actuator, directly accept 4-20mA control signal, output 4-20mA or 1-5VDC valve position feedback signal, with self-diagnosis function, easy to use and adjust.
2. Functional module structure design, through the combination of different optional functions, realizes the control from simple to complex, and meets different application requirements.
3. Simple structure, compact size, light weight, easy to install and maintain, all mechanical parts are processed by CNC, exquisite technology.
4. All gears are sealed with small backlash, which has high efficiency, low noise, long service life, stability and reliability, no refueling, and various operating speeds. It can meet the requirements of various control systems to ensure the rapid response and stability of the system.
5. PSQ series has torque switch protection to prevent valve stem damage due to excessive torque.
6. The driving motor is a high-speed synchronous motor made of high-performance rare earth magnetic materials, which runs smoothly. It has the characteristics of small volume, large moment, anti-blocking and high control precision.
7. Segmental regulation can be set, i.e. two actuators can be controlled by a dual-time proportional signal output from one regulator (4-12mA corresponds to full-open or full-closed PSL1, 12-20mA corresponds to full-open or full-closed PSL2).
8. The valve position feedback element adopts fully sealed high precision multi-loop potentiometer, which has the characteristics of small volume, high precision, small dead zone and long service life. All electrical components adopt world famous brand products with reliable quality. The wiring of electrical components is rigorous and completely separated from the transmission components, which improves the reliability of the operation of the actuator.
Product Structure of PSQ Electric Actuator
The PSQ angular stroke actuator is mainly composed of the separated electrical control part and the gear transmission part. The motor is used as the intermediate part to connect the two separated parts. The motor torque is transmitted to the planetary gear through the main gear, which drives the planetary gear to drive the hollow gear. Hollow gears have three fewer teeth than secondary gears, so they can be driven by planetary gears. The planetary gears rotate three teeth in a circle. The outer part of the planetary gears always engages a worm gear, and the operation is not separated. This design enables the motor to operate directly through the handwheel when the fault or the valve torque increases unexpectedly. Dynamic control.
The actuator has two threaded stop mechanism limits and two limit switches to realize the electric limit. The range of each turn can be controlled by the position of the limit switch. The opening of the valve is indicated by a protruding display. The unique torque switch can adjust the maximum torque from 50% to 100%, so as to realize the torque protection to prevent it. Stem damage when valve is stuck.
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