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Maintenance Skills of Iron Centric Flange Butterfly Valve

Maintenance skills of Iron Centric Flange Butterfly Valve
1. The flange butterfly valve should be kept clean during use, and the transmission thread must be regularly lubricated. When a fault is found, it should be stopped immediately to find out the cause and clear the fault.
2. The bolts of the packing gland should be evenly tightened, and should not be pressed into a crooked state, so as to avoid bruising, hindering the movement of the valve stem or causing leakage.
3. During installation, the valve can be directly installed on the pipeline according to the connection method. Under normal circumstances, it can be installed at any position in the pipeline, but it needs easy-to-operate maintenance. Note that the medium flow direction of the shut-off valve should be upward from the vertical valve flap. The lift check valve can only be installed horizontally.
4. When the flange butterfly valve is used, it is only used for fully open or fully closed, and it is not allowed to adjust the flow rate, so as to avoid erosion of the sealing surface and accelerated wear. There is an inverted sealing device in the gate valve and the upper threaded stop valve, and the handwheel is turned to the uppermost position and tightened to prevent the medium from leaking from the packing.
5. Use a hand wheel when opening and closing the flange butterfly valve. Do not use levers or other tools to avoid damage to the valve. Turn the handwheel clockwise to close, and vice versa to open.
6. Before installation, you must carefully check the pressure marked on this valve, whether the diameter meets the requirements for use, eliminate the defects caused by the transportation process, and eliminate the dirt on the valve parts.
7. Valves stored for a long time should be inspected regularly. The exposed processing surface should be kept clean to remove dirt. During storage, the ball valve should be blocked at both ends and open. For pneumatic butterfly valves, both ends of the passage should be blocked and closed. Store neatly in a ventilated and dry place indoors, and strictly prohibit stacking or storage in the open air.
Iron Centric Flange Butterfly Valve