No wear ball check valve with a single ball series and multi-ball series

Ordinary lift or swing check valve valve to overcome gravity and friction between the deputy campaign to open the valve , so there is flow resistance pressure, work pressure, hoist less effective and other shortcomings. No wear ball valve rotating shaft and because  Instrument valve manifold  relative movement between the sleeve friction , no separate power control and manual operation , only by the pressure of the media is to promote closing parts - rubber ball and turn it on , the pipeline the reflux  Needle valve  the rubber ball to achieve the valve closes. As rubber ball has good flexibility , reducing the pipe shock, vibration and noise generated therefrom , and flexible opening and closing , the flow resistance coefficient is small , low cost products . Two structural characteristics of wear- ball series ball  Double ended cylinder  and multi- ball series two kinds of structure type . Valve consists of body, seat , rubber ball and cover and other component parts. When you turn on the pump, the role of the media , the rubber ball out of the seat to move forward , move a certain distance dome block rubber ball , the valve opens . After stopping the pump or water inside the pipe back pressure pushes the rubber ball backwards , automatic compression rubber ball seat to seal the valve closes .