Single flap swing check valve is a kind of ultra-thin shaped check valve, adopting short structure size and single flap, with O-type sealing ring at the flap, good sealing performance, compared with the traditional swing check valve, this series of valves have no external leakage, can be installed at any position, good sealing performance, small linear vibration, small pressure drop and zero seat wear. Mainly used in water supply system, petroleum, chemical industry, metallurgy and other industrial sectors on the occasion of installation space restrictions.

Single flap rotary check valve to clip the rotary check valve to clip the rotary swing structure, the valve flap around the rotary axis for rotary motion, by the flow of media to push open the flap through the media, when the media flow backward, the valve flap by its own weight as well as the role of backward flow of the media, to close the valve.

Single flap rotary check valve structure length is short, its structural length is only 1/4 ~ 1/8 of the traditional flange check valve, small size, light weight, its weight is only 1/4 ~ 1/20 of the traditional flange check valve, the valve closes quickly, water hammer pressureure is small, horizontal pipeline or vertical pipeline can be used, easy to install, the flow path is smooth, fluid resistance is small, the action, sealing performance is good, the valve flap stroke is short, the closing impact is small, the valve flap stroke is short, the closing impact is small, the valve flap stroke is short, the closing impact is small, the valve flap stroke is short, the closing impact is small, the valve flap stroke is short, the closing impact is small. Short, closing impact is small, the overall structure, simple and compact.