Graco 15A981 Cylinder Seat

The Graco 15A981 Cylinder Seat provides a precision sealing surface inside spray gun cylinders, ensuring consistent fluid control and preventing leakage.

OEM replacement for direct fit in Graco spray guns
Durable material resists wear, corrosion, and chemical exposure
Maintains consistent spray pattern and tip performance
Quick and easy to install during maintenance or rebuilds

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Description

Graco 15A981 Cylinder Seat – Product Overview

Compatible Systems

System / Model Type	Description
Graco PerformAA Auto Air Assist Spray Guns	High‑performance spray guns where the cylinder seat serves as a critical sealing and wear surface.
Graco RAC X & XV Tip Assemblies	Spray tip systems requiring accurate seating to maintain pattern consistency and prevent leakage.
Graco Repair & Maintenance Kits	Replacement part used in periodic rebuilds of spray guns when the cylinder seat shows wear, deformation or leakage.

Product Description

The Graco 15A981 Cylinder Seat is an OEM‑specified sealing component engineered to provide a precise, reliable seating surface within a spray gun’s cylinder assembly. It ensures optimal interaction between the piston and cylinder, maintaining fluid control, consistent spray pattern and minimal leakage at the tip interface.

Manufactured to tight tolerance specifications and from durable material compatible with paint coatings and solvents, this cylinder seat supports long‑term performance even under repeated cycles of high pressure, abrasive coatings or high‑speed operation. It is an essential wear‑part when servicing V‑tip or auto‑air assist spray guns, restoring the original factory sealing and alignment.

Key Features

Factory‑specified replacement part for direct fit and function in Graco spray guns
Precisely machined seat surface to ensure proper contact with piston or fluid valve element
Material selected for durability in coating environments—resisting wear, corrosion and chemical attack
Helps maintain spray pattern integrity by preventing minute bypass flow or leak paths
Supports maintenance cycles by offering an affordable replacement that restores equipment performance

Technical Specifications

Part Number	15A981
Component Type	Cylinder Seat / Sealing Ring
Use Case	Acts as the seating interface inside the spray gun cylinder to control fluid passage and maintain sealing.
Material	Hard‑wear material suitable for contact with coatings, solvents and high‑cycle operations.
Function	Provides a precisely aligned, sealed interface for the piston/valve system to ensure consistent fluid flow and minimal leakage.
Serviceability	Intended for use during standard maintenance and rebuild procedures of Graco spray guns.

Installation & Maintenance Tips

Depressurize and fully drain the spray gun before disassembling the cylinder housing to protect against injury or damage.
Remove the worn or damaged cylinder seat and inspect the piston, cylinder wall and sealing surfaces for scoring or corrosion — replace these if found.
Lubricate any O‑rings or dynamic seals in accordance with manufacturer guidelines and ensure the new seat is seated flush without tilting or misalignment.
Reassemble the cylinder carefully, ensuring all fasteners are torqued to specification to avoid distortion of the seat or misalignment of the piston path.
After assembly, cycle the spray gun at low pressure initially to verify smooth operation, zero leak paths at the tip, and consistent spray pattern before returning to full production use.

Frequently Asked Questions

It acts as the sealing and seating surface inside the spray gun’s cylinder, allowing the piston or valve mechanism to maintain proper fluid control and minimize leakage.

Replace the seat when there is fluid leakage at the tip, inconsistent spray pattern, excess fluid by‑pass, or visible wear or deformation of the seat surface during maintenance inspections.

Installation is straightforward for trained technicians: depressurize and disassemble the spray gun cylinder, remove old seat, install the new seat flush, reassemble and verify operation with a low‑pressure test.