The flow measurement system and the pipeline pneumatic valve installation quality requirements

pressure should be used, guide pressure pipe, corrosion resistant material, generally USES steel pipe, copper tube or high quality gas pipe, depending on the current body. The inside diameter shall not be less than mm, length is generally not more than m.
and guide tube should be vertical or inclined installation, shall not be less than: its gradient. When the pilot pressure pipe is greater than the vertical length m, pressure pipe should be segmented tilt, laying and highs and lows in paragraphs respectively installed gas collector ( Or exhaust pneumatic valve) And settler ( Or sewage pneumatic valve) 。
and should be close enough to guide pressure tubes was laying, cold region should guide pressure pipe antifreeze, electricity and steam heating and heat preservation can be used.
and guide when traveling through the floor, platform, iron plate, pressure pipe should be equipped with protection pipe or increase the diameter of the punch.
and guide tube bend should be uniform, should not be flat, flat bending radius of not less than the pipe diameter.
, near the throttling parts guide pressure piping should be truncated pneumatic valve. When the pilot pressure piping containing condenser, truncation pneumatic valve should be installed near the location of the condenser.
, truncation of the pneumatic valve, pressure and corrosion resistance of the same as the main line. Truncation of the pneumatic valve flow area should not be less than of circulation pipe area.