Intelligent anti-corrosion pneumatic flange type soft seal ball valve cumulative flow 2. Installation process of pneumatic ball valve
(1) Install the valve into the pipeline. The valve for handle drive can be installed at any position on the pipeline. However, the manual pneumatic ball valve with gearbox and the pneumatic pneumatic ball valve with pneumatic driver are installed vertically, that is, they are installed on the horizontal pipeline, and the driving device is above the pipeline.
(2) The sealing gasket shall be installed on the connecting pipe shoe between the valve flange and the pipeline flange according to the design requirements.
(3) The bolts on the flange shall be symmetrically tightened one by one and evenly.
(4) Pneumatic actuators are used to connect pneumatic pipelines.
How to test the safety performance of pneumatic butterfly valve
As an important link component in engineering technology, it is widely used in aerospace, petrochemical, mining electronics, machinery and shipbuilding, medical and health, textile electronics, energy buildings and other fields. In these industries, the performance testing requirements for the quality of metal bellows used are stricter, especially the pressure test and air tightness test.
The withstand voltage test of is a safe performance index experiment. The purpose of stopping the pressure test is to detect whether the hose has abnormal failure modes such as leakage and parts damage. As the qualified product request does not allow abnormal failure modes such as leakage or parts damage.
Dry and clean air, or nitrogen or other maintenance gases as required, are used as the test medium for the air tightness test. The air tightness test is stopped to check whether there is air leakage in the hose. Test method: block one end of the hose to be tested, connect the other end with the air outlet installed under pressure, immerse the hose in water, remove the bubbles adsorbed on the mesh sleeve, hold the pressure for 10min after the air pressure is stable, and check whether there is air leakage on the test piece.
Natural gas users can think about replacing metal pipes
