What are the types of valve accessories?

The valve itself is composed of a valve body and various operating mechanisms, which also contain a lot of parts and accessories, including manual, pneumatic, electric and so on. The components assembled in different ways of use are also different. Let's look at the types of valve accessories in detail below.

 

 

The main parts of the valve

1. Pneumatic actuator: It is mainly divided into single-acting and double-acting. Single-acting is a spring-return structure, and double-acting is the principle of air opening and closing. Generally, double-acting pneumatic actuators are used for adjustment types.

 

2. Electric actuators: the common ones are straight travel, angular travel, small size and explosion-proof type. The structure of electric actuators is relatively complex and the cost is high, but its performance is stable, open and close quickly, and suitable for remote control systems.

 

3. Hydraulic actuator: A hydraulic actuator is a device that converts hydraulic energy into mechanical energy. There are mainly linear and rotary types. The cost is relatively high, and the structure is relatively complex. It is a product with special working conditions and high requirements, and its market common rate is low.

 

4. Air-wave linkage actuator: The air-wave linkage actuator uses pipeline natural gas or hydrogen as power and hydraulic oil as the transmission medium to drive the opening and closing of pipeline valves. Mainly used in natural gas, liquefied gas, nitrogen gas liquid tank, gas, etc. as a multi-function driving device.

 

5. Manual actuator: The manual actuator is to perfect the manual control when the current is unstable and the air pressure is insufficient. When the air pressure and current cannot be controlled under special circumstances, or there is no current and air pressure for installation and maintenance, turn on the manual feedback device for quick manual control.

 

6. Electro-hydraulic linkage actuator: Electro-hydraulic linkage actuator is composed of two parts: control module and power module. The intelligent controllable motor accepts the function commands of the control module, controls the power module, outputs the large distance in line or angular displacement, pneumatically controls the object, and at the same time completes the adjustment process through its own displacement feedback, and realizes various functional controls.

 

 

The main positioners and accessories of the valve

Pneumatic valve positioner, electric valve positioner, intelligent valve positioner, electro-hydraulic servo, servo amplifier, electric converter, filter pressure reducing valve, valve position transmitter, position valve, solenoid valve, limit switch, pneumatic Amplifier, intelligent module, electro-hydraulic server, servo amplifier, alarm, explosion-proof coil, quick exhaust valve;

 

 

Other valve accessories

Valve testing machine, handle, handwheel, worm gear, valve body, valve core, valve stem, valve cover, valve silencer, signal generator, blank, mold, bolt and nut, clamp, spring, diaphragm, material, Ang Roots, O-rings, PTFE products, gaskets, flanges, elbows, quick connectors, expanders, flow meters, filters, non-standard solid parts;

 

 

We will continue to introduce professional knowledge of the use and performance of various valves. If you need to know about control valve, pneumatic actuated ball valve, pneumatic cylinder, pneumatic check valve and other product information, please give us a comment in the message area, we will release for you as soon as possible.