Butterfly valve supplier have Some common maintenance tasks include:
Lubricating the valve seat and disc.
Butterfly valves have high contact surfaces between the valve disc and seat that need to be lubricated periodically. This prevents excess wear and helps the valve open and close smoothly.
Tightening the valve stem.
The valve stem connects the valve disc to the valve shaft. It needs to be properly tightened to avoid leaks. Loosening or wear of the stem can compromise valve sealing.
Checking valve disc alignment.
The butterfly valve disc needs to close and seal properly against the valve seat. Misalignment or warping of the disc can prevent tight shutoff.
Inspecting valve seals.
Butterfly valves have seals, often called O-rings, that seal the edge of the valve disc. These seals need to be intact and properly installed to avoid leaks.
Checking valve shaft.
The valve shaft is the central component that the disc rotates around. It needs to spin freely without excess vibration or play. Bent, corroded or damaged shafts can prevent the valve from opening and closing properly.
Painting valve actuators.
Actuators like electric motors or pneumatic cylinders that open and close the butterfly valve need to be painted or coated to prevent corrosion which could jam the actuator.
Exercising unused valves.
Valves that are rarely operated can become stuck over time. Regularly exercising unused valves helps ensure they will open and close properly when needed.
Performinginspections.
Periodic inspections including visual checks, tightness tests, leak testing and operating tests should be done to identify any issues before they become problematic.