1, when the valve lifting, do not tie a rope on the hand wheel or the valve stem to prevent damage to these components, you should tie in the flange. 2, before installation, you should make a check valve, check the specifications, the identification of damage, especially for stem. Also a few turns to see if skewed, because the transport process, most likely to hit the crooked stem. Also clear the debris inside the valve.

3, the mounting flange pneumatic valves, should pay attention to tighten the bolts evenly symmetrical. Valve flange and pipe flange must be parallel to, reasonable gap, so as to avoid excessive pressure valve, even cracking. For brittle materials and intensity is not high valve, with particular attention. Shall be welded pipe valve, should be spot welding, then the closure member open, and then welded shut.

4. When installing the valve screw should packing (leaded hemp oil or Teflon tape), including on the pipe threads, do not get the valve, the valve in order to avoid memory product, the impact of media circulation.

5, the valve is connected to the pipeline must be cleaned. Available compressed air to remove sediment, iron scrap, slag and other debris. These sorts of things, not only easy to scratch the valve sealing surface, where large particles of debris, but also blocked the small valve to fail.