1, the long-term storage of the valve, should be regularly checked, the processing of the exposed surfaces must be kept clean, remove dirt, when the ball should be placed at both ends and plug in the open, gate valve, globe valve, check valve, the channel should be blocked at both ends and in the closed state, neatly stored in indoor ventilation dry place no, stacked or open storage.
2, before installation, we must carefully check the pressure of the valve mark, whether the path meets the requirements of use, eliminate the defects caused by the transportation process and eliminate the dirt of the valve.
3, when the installation is installed, the valve can be directly installed on the pipe according to the connection mode. Generally, it can be installed anywhere in the pipeline, but it is easy to operate. It is noted that the flow direction of the globe valve should be upward under the longitudinal valve, and the lift check valve can only be installed horizontally.
4, ball valve, cut-off valve, gate valve, only for full or full closure, not allowed to adjust the flow of use, so as to avoid the cover of erosion, speed up wear. There is an inverted seal in the gate and the upper thread cut-off valves, and the hand wheel is screwed up at the top position to prevent the leakage of the medium from the filler.
5, the ball valve, cut-off valve, gate valve opening, closing the application of handwheel, do not use lever or other tools, so as not to damage the valve parts. The handwheel is clockwise to turn off, and vice versa.
6, the packing bolt should be tightened evenly and should not be pressed into a skew state so as to prevent the stem from moving or causing leakage.
7, the valve should be kept clean during the use process, and the transmission thread must be lubricated regularly. When the fault is found, it should be stopped immediately to find out the reason for clearing the fault.
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