Concealed stem gate valve
s that have been stored for a long time should be inspected regularly. The frequently exposed processing surfaces must be kept clean, cleaned of dirt, and neatly stored in a ventilated and dry indoor place. It is strictly forbidden to store them in the open air. Always keep the gate valve dry and ventilated, keep the valve clean and tidy, and store it according to the correct storage method. Before installation, you must carefully check the various standards of the dark stem gate valve, whether the diameter meets the requirements for use, eliminate the defects caused by the transportation process, and eliminate the dirt of the dark stem gate valve, make preparations before installation, and everything is ready. During installation, the dark stem gate valve can be directly installed on the pipeline according to the connection method, and installed according to the position used. Under normal circumstances, it can be installed at any position of the pipeline, but it needs to be easy to operate and repair. Note that the medium flow direction of the shut-off dark stem gate valve should be upward from the bottom of the vertical valve disc, and the dark stem gate valve can only be installed horizontally. When installing the dark stem gate valve, attention should be paid to the tightness to prevent leakage and affect the normal operation of the pipeline. The hidden stem gate valve should always be kept clean during use, and the transmission thread must be lubricated regularly. Dark stem gate valve should use hand wheel, please do not use lever or other tools to avoid damage to valve parts. Turn the handwheel clockwise to close, and vice versa to open. The dark stem gate valve should be used reasonably and ensure the correct use method and means.
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