Silent Check Valve yog Axial Flow hom kos valve, cov kua dej ua haujlwm feem ntau yog laminar ntws ntawm nws qhov chaw, nrog me me los yog tsis muaj turbulence. Lub puab kab noj hniav ntawm lub cev valve yog Venturi qauv. Thaum cov kua ntws los ntawm lub valve channel, nws maj mam shrinks thiab nthuav, txo cov tiam ntawm eddy tam sim no. Lub siab poob yog me me, cov qauv ntws ruaj khov, tsis muaj cavitation, thiab suab nrov tsawg.