xh-type flexible valve also known as "duckbill valve", is a special structure, in shape, "beak-like", with "positive drainage, reverse-return" feature of the new water supply and drainage valve products. The valve does not have any active components, free of any maintenance.It can give straight pipes, flange pipes, cement pipes, glass pipe support, widely used in coastal, beach, pier, Check Valvesreservoirs, municipal drainage, sewage pond discharge, odor barrier, pumping stations and other water discharge system.
xh flexible check valve can effectively prevent backflow check valve back flow and sediment generation, and fixed before the outlet tube is different: duckbill valve jet velocity and the outlet flow was complicated nonlinear relationship, tests showed that duck nozzle valve effluent flow rate required to achieve effective mixing, Safety Valves than the same mixture of circular pipe smaller than the required flow rate for different ports of the valve flow characteristics for various tests, and analysis of these data, arrive at a common formula for calculating two-dimensional internal dynamics, these results show that use of duckbill valve, can spread more stable, while a large jet velocity, energy is also large, with a laser gun technology duckbill valve Koupen jet mixing region near the study showed that beak-shaped discharge nozzle has a better than the standard round of diffusion.
xh-type check valve with a flexible buffer, noise performance, maintenance-free and non-corrosive and so on.MUD VALVES It is far better than other water purification performance of door in sealing performance, harsh environment and improve performance. It solved the the problems of traditional butterfly valve,because of many mechanical failures adverse operating conditions, a large leak, the valve seat wear, deformation of parts and corrosion, noise, and need frequent maintenance and replacement of technical problems. It can be called green environmental protection valve.

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