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Effective Maintenance Method of Flange Type Gas Butterfly Valve


Scientific maintenance equipment not only prolongs its service life and reduces its maintenance rate, but also brings benefits to users more effectively. Today we explain the maintenance of the flange type gas butterfly valve, the details are as follows;

Flange type gas butterfly valve

1. First of all, the flange-type gas butterfly valve should be kept clean when in use, and the transmission thread must be lubricated regularly. When a fault is found, it should be stopped immediately to find out the cause and clear the fault.

2. When installing, the valve can be directly installed on the pipeline according to the connection method. Under normal circumstances, it can be installed in any position of the pipeline, but it is necessary to facilitate the operation of the maintenance. Pay attention to the flow direction of the cut-off valve medium, which should flow upward under the longitudinal disc. The lifting check valve can only be installed horizontally.

3. The bolts of the packing gland should be tightened evenly and should not be pressed into a crooked state, so as not to damage the movement of the valve stem or cause leakage.

4. When in use, it is only fully open or fully closed, and it is not allowed to adjust the flow, so as to avoid erosion of the sealing surface and accelerate wear. The gate valve and the upper thread stop valve are equipped with an inverted sealing device, and the handwheel is screwed to the highest position to prevent the medium from leaking from the packing.

5. Before installation, you must carefully check the pressure of the valve mark and whether the diameter meets the requirements of use, eliminate the defects caused by the transportation process, and eliminate the dirt of the valve parts.

6, long-term storage of the valve, should be made regular inspection, the exposed processing surface must be kept clean, remove dirt, storage ball valve should be blocked at both ends and in the open state, pneumatic butterfly valve, the channel at both ends should be blocked and in the closed state, neatly stored in the indoor ventilated dry place, it is strictly prohibited to stack or open storage.

7, open, close the application of hand wheel, do not use the lever or other tools, so as not to damage the valve. Turn the handwheel clockwise to close, otherwise it is open.

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