Check valve refers to the flow of the media itself and automatic open, closed disc, used to prevent media backflow of the valve, also known as check valve, one-way valve, reverse flow valve, or back pressure valve. Type H42H vertical check valve check valve belongs to an automatic valve, its main role is to prevent medium backflow, prevent pump and drive motor reversal, as well as the discharge of container medium.
Check valves can be divided into swing check valve (rotating according to the center of gravity) and lift check valve (moving along the axis). By choosing different structure and material, it can be widely used in water, steam, oil, acid, alkali and other media.
Flange elevating check valve (H41 horizontal, H42 vertical) sealing pair matching advanced reasonable, disc, seat sealing surface using iron base alloy, or Stellite cobalt-based hard alloy surfacing welding, can also cover the valve plate with rubber. Type H41 is suitable for horizontal pipe installation and type H42 is suitable for vertical pipe installation. Wear resistance, high temperature resistance, corrosion resistance, abrasion resistance, long service life.
Scope of use: the product can be used in petroleum, chemical and other industries.
Products conform to the standard: GB/T 12235
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