Yangzhou Hengchun Electronics Co., Ltd

High quality product, professional service, being the core supplier in laser industry!

Home > News > Content
Multi-Turn On-off Actuator Automatic Control
- Oct 16, 2017 -

The broadest definition of an actuator is a drive device that provides a straight or rotary motion that uses electricity or gas as a driving force and works under a control signal such as a current or voltage, thus reaching a drive to open the shutoff valve. Although most actuators are used for on-off valves, but today's actuators are designed to go well beyond simple switching functions, including position sensors, Multi-Turn On-off Actuator torque sensors, electrode protectors, logic controls, digital communication modules and PID control modules, all of which are installed in a compact enclosure.

Because more and more factories use automation control, manual operation is replaced by mechanical or automation equipment, people require the actuator to be able to control the interface between the system and valve mechanical movement, more require the executing agency to enhance work safety performance and environmental protection performance. In some dangerous situations, automated actuators can reduce injuries. Multi-Turn On-off Actuator Some special valves require emergency opening or closing in exceptional circumstances, and valve actuators can prevent further spread of the risk while minimizing factory losses. For some high-pressure large-caliber valves, Multi-Turn On-off Actuator the required actuator output torque is very large, then the required actuator must improve mechanical efficiency and use of high output motor, such a smooth operation of large diameter valves.

1. Drive energy, the most commonly used driving energy is power or fluid source, if the choice of power supply for the driving energy, for large-size valves generally choose three-phase power supply, for small-size valves can be selected single-phase power supply. General Electric actuator can have a variety of power types to choose from. Sometimes DC power supply can be selected, Multi-Turn On-off Actuator at this time to install the battery to achieve power failure safe operation.

There are many kinds of fluids, the first one can be different media such as: compressed air, nitrogen, natural gas, hydraulic fluid, and second, Multi-Turn On-off Actuator they can have a variety of pressure, the third actuator has a variety of dimensions to provide the power of output torque.

2, valve type, when selecting the valve actuator, you must know the type of valve, so that you can choose the right actuator types. Some valves require a multiple-slewing drive, some require a single slewing drive, Multi-Turn On-off Actuator and some require a reciprocating drive, which affects the choice of actuator type. Often more rotary pneumatic actuator than the electric multiple rotary actuator price is expensive, but reciprocating direct stroke output pneumatic actuator price than the electric multiple rotary actuator cheaper.