Piping valve accessories are devices or components that are used to enhance the performance, safety, and reliability of valves in piping systems. Some common piping valve accessories include:
1. Actuators: These are devices that convert energy into mechanical motion to operate valves. There are different types of actuators, including electric, pneumatic, and hydraulic actuators.
2. Positioners: These are devices that control the position of the valve stem by adjusting the actuator output. Positioners are used to improve the accuracy of valve control and reduce the effects of valve hysteresis.
3. Limit switches: These are devices that detect the position of the valve and send a signal to the control system when the valve reaches a certain position. Limit switches are used to provide feedback to the control system and to prevent overtravel of the valve.
4. Solenoid valves: These are electrically operated valves that control the flow of fluid to the actuator. S…