Install ventilation butterfly points needing attention of pneumatic valve

ventilation butterfly pneumatic valve adopts the same as the pneumatic valve body material processed into sealing ring, its applicable temperature pneumatic valve body material and decide, nominal pressure or less. MP, generally applicable industry, metallurgy, environmental protection and ventilation adjust medium flow in pipe. Ventilation butterfly

the main points of pneumatic valve installation. Installation position, height, import and export direction must comply with the design requirements, pay attention to the direction of the medium flow shall conform to the direction of the arrow by pneumatic valve body, the connection should be firmly connected.
. Pneumatic appearance inspection must be conducted before installation of valve, pneumatic valve nameplate shall comply with the current national standard 'general pneumatic valve symbol' GB regulation. Pressure is greater than for the job. MPa and pneumatic valve with the function of cutting on ZhuGanGuan, strength and strict performance test should be done before the installation, qualified rear must use. Strength test, the test pressure for the nominal pressure. Times, duration of not less than min, pneumatic valve shell, packing should be no leakage as qualified. Leak test, the test pressure for the nominal pressure. Times; The duration of the test meet the requirements of GB.