Hardware knowledge: swing check pneumatic valve basic knowledge

swing check pneumatic valve, also known as a one-way pneumatic valve or non-return valve, its purpose is to prevent the backflow medium pipeline. Open-close part by medium flow and power to open or closed, to prevent the backflow medium pneumatic valve check pneumatic valve. Check pneumatic valve belong to automatic pneumatic valve class, mainly used for medium on the one-way flow of pipeline, only allowed to medium flows in one direction, in order to prevent accidents.
a pneumatic valve, swing check purpose:
swing check pneumatic valve is suitable for the nominal pressure PN. MPa~. MPa、类- - - ; Nominal diameter DN, NPS / ~ ~ mm; Working temperature - ~ ℃ of various pipelines, used to prevent the backflow medium. By choosing different capable person, can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and urea, and other media.
2, swing check pneumatic valve main material are:
carbon steel, low temperature steel, dual phase steel ( F/F, titanium alloy, aluminum bronze, for secco nickel ( 铬镍铁合金、SS、SSL、SS、SSL; Chrome molybdenum steel, monel, /, # alloy, hartz alloy of metal materials.