Pneumatic switch butterfly valve maintenance points

Pneumatic butterfly valve maintenance methods

1, pneumatic butterfly valve in the use of the process, should always be kept clean, the transmission thread must be regularly lubricated, found that failure, should immediately stop using, identify the cause clear the fault.

2, gland bolts should be evenly tightened, should not be pressed into a crooked state, so as not to hinder the stem stem movement or cause leakage.

3, the installation, the valve can be connected directly by the device installed in the pipeline. Under normal circumstances, can be installed in any position on the pipeline, but to facilitate the operation of the overhaul, pay attention to the flow of medium-stop valve should be under the vertical flap upward flow, lift check valve can only be installed horizontally.

4, pneumatic butterfly valve used, only for full open or fully closed, do not allow to adjust the flow to use, so as to avoid erosion of the sealing surface, accelerated wear and tear. Gate valve and the thread shut-off valve within the inverted seal device, the hand wheel screwed to the top position, you can prevent the media leak from the packing.

5, pneumatic butterfly valve open, off when the hand wheel, do not use leverage or other tools, so as to avoid damage to the valve. Handwheel clockwise to close, on the contrary is open.

6, Before installation, you must carefully check the pressure of the valve signs, the path is consistent with the requirements of use, eliminating the defects caused by the transport process, and to eliminate the dirt valve.

7, the long-term storage of the valve should be regularly checked on the exposed surface to be cleaned to remove dirt, the ball valve should be stored at both ends of the blockage and open state, pneumatic butterfly valve, both ends of the channel should be blocked and closed, Neatly stored indoors in a ventilated and dry place, non-stacking or open storage.

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