John Valves

Cast Iron Ball Check

Cast Iron Ball Checkfeatures a non-clog design, minimum maintenance and trouble-free performance in the horizontal and vertical position. When flow is stopped the back pressure forces the ball into a positive shut off position. The design characteristics of the Fig. 408 keeps the ball completely out of the flow when open, ensuring a free flow with less friction loss than conventional designs. The valve gives positive seating without the use of springs or other mechanical devices. This product is specially suited for sewerage applications but is equally suited for general water application.