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Several essential accessories are crucial
for the proper functioning and enhanced performance of a ball valve pneumatic
actuator. Here are some of them:
Air Filter - Regulator - Lubricator (FRL)
Unit: This unit cleans the incoming air, removes impurities and moisture,
regulates the air pressure to a suitable level (usually 6 - 8 bar), and
lubricates the moving parts of the actuator. It helps to ensure smooth
operation, prevent corrosion, and extend the lifespan of the actuator.
Positioner: A positioner is used to
accurately control the position of the ball valve. It provides precise feedback
and adjustment, allowing for more accurate flow control and better process
automation. It can improve the actuator's response time and control accuracy,
especially in applications where precise valve positioning is critical.
Limit Switches: These switches indicate the
open and closed positions of the valve. They provide electrical signals that
can be used to monitor the valve's status in a control system. Limit switches
are essential for safety and process control, ensuring that the valve is in the
correct position and enabling proper operation of the overall system.
Speed Control Valves: These valves allow
for the adjustment of the actuator's opening and closing speed. By controlling
the flow rate of air, they can prevent rapid movements that may cause wear and
tear or damage to the valve and associated equipment. Speed control valves are
useful in applications where a specific rate of valve operation is required.
Pneumatic Tubing and Fittings: High -
quality tubing and fittings are necessary to connect the actuator to the air
supply and other components. They should be selected for their compatibility
with the pneumatic system and ability to withstand the operating pressure and
environment. Properly installed tubing and fittings ensure leak - free
operation and reliable air transfer.
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