Double Orifice Air Valve

QB2 double orifice air valve is applicable to the pipeline with water as the working medium and acts as the equipment to remove the gas in the pipeline, so as to improve the efficiency of water transmission equipment and protect the pipeline from deformation and rupture. It is a necessary equipment for the pipeline.

Performance characteristics
» It can eliminate the gas in the pipeline, reduce resistance and save paper and energy.
» When the pipeline is under negative pressure, the double port exhaust valve can automatically suck in air to prevent pipeline rupture.
» The floating ball is made of stainless steel, with long service life, safety and reliability.

Technical parameters 
» Medium: clean water
» Medium temperature: normal temperature
» Shell temperature and test pressure: 1.5MPa
» Floating ball sealing test pressure: 0.05 ~ 1.1MPa
» Valve body material: gray cast iron HT200
» Floating material: stainless steel
» Flange connection standard: GB / t12741.6-98
» Pressure test standard: Q / yfc01-2003

Installation instructions
» The double orifice air valve shall be installed vertically, and a protective valve (butterfly valve and gate valve) must be installed under it to avoid water failure during inspection.
» If the size of the exhaust valve flange is changed by the demander, please indicate the flange connection size.