Ductile iron flanged ball check valve HQ41X-16Q

sphericalcheck valvesAdopting rubber-covered rolling ball as valve flap, under the action of medium, it can roll up and down, left and right on the integral slide in the valve body, so as to open or close the valve. Muffled closure, no water hammer, good sealing performance. The valve body adopts full water flow channel, large flow, small resistance, head loss is smaller than the rotary opening type 50%, the best way to install vertically, can be used for cold water, hot water, industrial and domestic water pipeline network system of the pump outlet, to prevent the medium from flowing backward.

Working Principle

Ball check valve valve flap is covered with rubber or engineering plastics ball, so its sealing is reliable. Ball check valve nominal diameter of the size of a single ball and multi-ball points, the sealing principle is: when the pump is on, the medium positive flow of media pressure to promote the ball movement, along the guide column to leave the seat sealing surface, the check valve will be open, the media through, when the pump stops, the media reverse flow of pressure to promote the ball along the guide column rolling to the seat sealing surface, close the check valve, relying on the pressure of the media, so that the sphere flap and the seat sealing surface to produce a certain sealing ratio pressure, to ensure that the check valve seal to prevent the medium from flowing back. By the pressure of the working medium, the ball valve flap and the valve seat sealing surface to produce a certain sealing pressure, to ensure the sealing of the check valve, to prevent the purpose of the media backflow.

Product Parameters

Product Size Reference