Types of control valve accessories

In the industrial production process, control systems have various special requirements for valves, therefore, control valves must be equipped with various accessory devices (referred to as control valve accessories) to meet the needs of the production process.The main control valve product names of China Control Valve Network include:Electric three eccentric regulative butterfly valveElectric track regulative control valve,Electric valve intelligent manual locatorElectronic type electric hard sealing double eccentric butterfly valveElectronic type electric signle eccentric regulative (cut off) butterfly valveElectronic type electric signle seat, sleeve control valve

The main accessories for the control valve include:

1. Valve positioner is used to improve the working characteristics of control valve regulation performance and achieve correct positioning;

2. The valve position switch displays the working position of the upper and lower limit stroke of the valve;

3. When the air source of the control valve fails, the pneumatic holding valve maintains the valve in the open position before the air source failure occurs;

4. Electromagnetic valves achieve electromagnetic switching of the gas path, ensuring that the valve is in the desired safe opening position in case of power failure;

5. When the controller of the control system fails, the handwheel mechanism can switch to manual mode to operate the valve;

6. Pneumatic relay accelerates the action of the actuator and reduces transmission time;

7. Air pressure reducers are used to purify gas sources and regulate air pressure;

8. The air storage tank ensures that in the event of a gas source failure, the springless cylinder piston actuator can move the control valve to the fault safe position. Its size depends on the size of the cylinder, the requirements for valve action time, and the working conditions of the valve;

In short, the function of attachments is to make the control valve more complete, reasonable, and comprehensive.

Do you still need to know or purchase the following control valve products:

• Electronic type electric hard sealing double eccentric butterfly valve
• Electronic type electric signle eccentric regulative (cut off) butterfly valve
• Electronic type electric signle seat, sleeve control valve
• Electronic type electric staight signle, double seat control valve
• Electronic type electric Tee confluence, shunt control valve
• Explosion-proof stroke switch

2024-10-01

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