Shuttle valve impact, no noise, good sealing performance

Also known as one-way valve or check valve, check valve, and its role is to prevent the media back in the pipeline, it is widely used in petroleum, chemical, thermal network, metallurgy and water pipelines and  Instrument needle valve . Currently, swing check valve can not perfectly sealed, there is tendency to pour, easy to produce pipe vibration can not be installed at any angle, and sealed contact surfaces are  2 way manifolds , but such invention by a Mr Tsang Wai-impact small shuttle valve , no noise, good sealing performance, the soft seal leakage is zero, with good prospects for industrial development. Software as today's most reliable structural nonlinear,  Instrument manifolds  calculation system, its stable nonlinear problem solving, multi-physics simulation and other functions has been in global leadership. Text around large caliber (diameter not less than 200 mm) shuttle check valve Swing check valve with FSI performance numerical analysis carried out to the software as a platform to establish fluid-structure interaction finite element model of the pipeline flow field dynamic analysis.