Valve leakage is a fairly common valve problem, in fact, the problem is the day-to-day maintenance of the attention, we only have a scientific attitude to the valve daily maintenance, in order to make the valve in the work to achieve the desired effect and application purposes, from the source to eliminate valve leakage, reduce the leakage caused by valve leaks. Therefore, we should do the following points.

1, long-term storage of valves, should be regularly inspected, the exposed surface of the processing must be kept clean, cleaning dirt, storage ball valve should be blocked at both ends and in the open state, gate valve, globe valve, check valve, the ends of the channel should be blocked and closed, neatly stored in the indoor ventilated dry place, is strictly prohibited from piling or open storage.

2, before installation, must carefully check the valve mark pressure, the size of the use of the requirements, cleaning up the transport process caused by the shortcomings, and cleaning the valve parts of the dirt.

3, installation, the valve can be connected to the way directly installed in the pipe road. Under normal circumstances, can be installed in any position in the pipeline, but need to facilitate the operation of the overhaul, attention to the cut-off valve medium flow should be longitudinal disc below to high, lift check valve can only be installed horizontally.

4, ball valve, cut-off valve, gate valve when used, only for full or closed, not allowed to adjust the flow, so as to avoid the sealing surface by erosion, accelerated wear. The gate valve and the top thread globe valves have inverted seals

Device, the handwheel is screwed to a considerable position, and the media can be prevented from leaking from the filler.

5, ball valve, cut-off valve, gate valve open, closed when the use of handwheel, do not use the lever or other tools to avoid damage to the valve parts. The handwheel rotates clockwise to close, whereas the hand wheel is turned on.

6, packing gland bolts should be evenly tightened, should not be pressed into a crooked state, so as to avoid the impact of the stem movement or leakage. 7, the valve in the use of the process, should always keep clean, transmission thread must be lubricated regularly, find fault, should immediately stop using, to identify the cause of cleaning up the fault.