This replacement part ensures proper sealing and one-directional flow inside the pump’s check-valve system, helping maintain stable spray pressure.
This Graco 16N461 Check Valve Seat Housing is used across several Graco sprayer families. Below is the verified compatibility list.
The 16N461 Check Valve Seat Housing serves as the seat and housing section of the internal check-valve assembly inside the pump. This component ensures one-directional fluid flow, preventing back-flow and maintaining consistent spray pressure. It is a common wear part within the fluid section and should be replaced if the check valve performance becomes unreliable.
