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When using electric globe valves, some faults can occur, and these faults can affect their proper operation; therefore, it is necessary to address them promptly. So, what are the common faults? How to do it? Let us know. Electric globe valves enable proportional control; when used in conjunction with 2/5 way solenoid valves and control boxes, they allow for on/off control. The valve core of the V-type ball valve is designed with a V-shaped notch of specific geometry, granting it precise flow-shutting properties and control capabilities, making it suitable for various control applications. The pneumatic knife gate valve is a right-angle rotary control valve that is used in conjunction with a valve positioner. Electric explosion-proof gate valves exhibit excellent control characteristics: V-ball valves have approximately equal percentage flow characteristics and a Adjustable ratio of up to 300:1. Therefore, V-ball valves can provide precise control over a wide range of variations. The first electric shut-off valve operates normally, but it cannot withstand regulation. Reason: The valve core is closed or the pipeline is blocked. Solution: Close the valve core; ensure a firm connection between the valve core and the valve stem, and clear the pipes promptly to address the issue. Second, the check valve does not function. Reason: There is no signal indicating pressure or diaphragm damage, diaphragm leakage, so the diaphragm thrust can be reduced; issues such as the valve core getting stuck to the valve seat or bushing, or the valve stem bending, prevent the check valve system from functioning. Solutions for teaching methods: Strengthen the connections between the signal wires and the air supply connectors; the enterprise may need to replace the diaphragm; straighten the valve stem or replace it entirely. III. Unstable or oscillating check valve. Cause: Excessively large diameter of the check valve ； In a single-seat valve, the medium flows in the same direction as the valve’s closing direction. The valve core and guide sleeve are severely worn. Solution: Replace the valve with one having an appropriate diameter ； Adjust the valve direction ； Improve the bonding surface or replace the valve core and guide sleeve. IV. The check valve operates slowly or with pulsations. Cause: Aging or dry-sealing packing increases the friction between the valve stem and the packing ； The valve body contains viscous dirt, blockages, coking, etc. The diaphragm and the “O”-ring are leaking. Solution: Replace the sealing packing and readjust it ； Remove dirt, carbonization, etc. Tighten the diaphragm head, or replace the diaphragm O-ring. Therefore, during the use and maintenance of pneumatic ball valves, if such system failures occur, they can be repaired promptly through our services.