How to maintain pneumatic flanged butterfly valve?

1, the pneumatic flange butterfly valve in the process of use, should be often kept clean, the transmission thread must be regularly lubricated, found fault, should immediately stop use, find out the cause of the fault.

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

3, when installing, the valve can be directly installed on the pipe according to the connection method. Under normal circumstances, it can be installed in any position of the pipeline, but it needs to be easily operated and repaired. Pay attention to the media flow of the stop valve should be upstream under the longitudinal valve disc, and the lifting check valve can only be installed horizontally.

4. When the pneumatic flange butterfly valve is used, it is only fully open or fully closed, and it is not allowed to adjust the flow rate, so as to avoid erosion of the sealing surface and accelerated wear. The gate valve and the upper thread stop valve have reverse sealing devices, and the hand wheel is rotated to the above position to tighten, which can prevent the medium from leaking from the packing place.

5, pneumatic flange butterfly valve open, close the application of hand wheel, do not use leverage or other tools, so as not to damage the valve. The hand wheel is turned clockwise to close, and vice versa to open.

6, before installation, it is necessary to carefully check the pressure of the valve mark, whether the diameter meets the requirements of use, deal with the defects caused by the transportation process, and clean the dirt of the valve.

7, long-term storage of the valve, should be regularly checked, the exposed processing surface must be kept clean, clean dirt, the storage of the ball valve should be blocked at both ends and in the open state, pneumatic flange butterfly valve, both ends of the channel should be blocked and in the closed state, neatly stored in a ventilated and dry place, strictly prohibited pile or open storage.