Graco 158279 Foot Valve Ball Stop Retainer

The Graco 158279 Foot Valve Ball Stop Retainer controls internal flow movement by holding the spherical sealing element within a confined chamber during fluid transfer cycles. Pressure variation shifts the internal closure element upward and downward, allowing passage direction changes while limiting uncontrolled backflow through the connected intake section. Placement occurs inside the lower intake assembly near the valve housing where liquid enters the pumping pathway and circulates through adjoining passages during suction and discharge movement. Its formed structure maintains spacing alignment between adjoining internal sections while remaining positioned within the enclosed transfer chamber during repeated operating intervals.