About breathing pneumatic valve pipe (3)

the use of pneumatic valve pipe breathing and description
, the breathing tube in this table vertical tank all kinds of pneumatic valve, used for breathing, the size of the can be installed at the top of the tank or pipe. MmHO
, the scope of work: pressure, negative pressure mmHO. Power can be adjusted, adjustable vacuum spring.
, breathing pneumatic valve, can be directly on the ground on top of the tank and half installed underground oil tank in one and a half underground storage tank, pipe exports towards the ground, hole tanks may be installed in the ventilation pipe.
breathing pneumatic valve pipe technology requirements:
and positive pressure pneumatic valve plate and vacuum pneumatic valve plate and the sealing contact surface is smooth, dense, no defects.
, pneumatic valve plate and the weight of the pressure error is less than + g.
with guide rod sealing ring plane should be perpendicular to the centerline of the straight lines should not exceed the basket. 。
and roundness and guide bar pneumatic valve stick a center line is less than. Mm.
, pneumatic valve plate move freely in the guide bar, should not be tilted and blocking phenomenon.
, the product of positive and negative before manufacturing of air tightness test pressure, should be through to the factory.
breathing pneumatic valve pipeline maintenance and maintenance:
, breathing pneumatic valve should be regularly check, check pressure plate and negative plate movement is flexible, and each year without damage guide rod and seal ring contact surface.
and reinstall the positive plate and negative plate, should ensure that strict, flexible lead shot down.
shall also emphasizes the work pressure.

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