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Graco 220948 Valve Seat

The Graco 220948 Valve Seat is a precision sealing component used in outlet check valve assemblies to maintain proper pressure and smooth fluid flow in professional Graco pumps.

  • Reversible, dual-lapped seating surface
  • Ensures consistent pressure and flow control
  • Restores pump sealing efficiency
  • Designed for professional Graco pump systems

$500.87
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Compatible Machines

  • Professional Graco Airless Paint Sprayers (Outlet Valve Assemblies)
  • Industrial Graco Piston Pumps Using Ball & Seat Valve Systems
  • Graco Fluid Transfer & Coating Pumps with Reversible Seat Design
  • Heavy-Duty Paint & Coating Spray Systems Using Check-Valve Outlet Housings

Product Overview

The Graco 220948 Valve Seat is a precision-engineered internal sealing component used inside Graco pump outlet valve assemblies. It works with the ball and related valve components to create a tight seal that ensures smooth, controlled fluid flow and consistent pressure during spraying operations.

This valve seat features a reversible, lapped-both-sides design, allowing extended service life by enabling installation on either side when one surface becomes worn.

Key Functions

Primary Function Provides a sealing surface for the outlet check valve system
Fluid Control Ensures proper pressure holding and consistent material flow
Wear Protection Reduces internal leakage caused by worn or damaged valve surfaces
Service Life Reversible design doubles usable lifespan

Why Replacement Is Important

  • Prevents pressure loss during spraying
  • Restores proper pump prime and output
  • Maintains uniform spray pattern
  • Protects ball and outlet housing from accelerated wear
  • Improves overall pump efficiency

Installation Notes

  • Install with the correct ball, O-ring, and outlet housing components
  • Ensure the seating surface is clean before installation
  • Use manufacturer-approved lubrication during reassembly
  • Can be flipped if one seating surface becomes worn

Frequently Asked Questions

It provides the sealing surface for the outlet check valve system, allowing the pump to maintain pressure and control fluid flow accurately.

Yes. The seating surfaces are lapped on both sides, allowing the part to be reversed for extended service life.

It should be replaced when you experience pressure loss, backflow, poor priming, or internal leakage caused by worn seating surfaces.

No. This listing is for the valve seat only. Other components such as the ball, O-rings, and guides are sold separately.

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