Graco 113040 Packing O-Ring

Graco 113040 Packing O-Ring Overview

Compatible Machines / Systems

The Graco 113040 Packing O-Ring is a critical fluoroelastomer seal used in pump cylinder assemblies for various Graco machines:

• Graco Check-Mate 800 Displacement Pump — cylinder seal assembly
• Graco Heated Pump Modules / Therm-O-Flow Modules — used in pump rebuilds and maintenance
• Other Graco series B and C displacement pumps that use similar dynamic O-ring seals

Product Overview

The 113040 Packing O-Ring is a high-quality fluoroelastomer seal designed to prevent fluid leakage under high-pressure and cyclic operation. It ensures the integrity of the pump cylinder and improves service life.

Key Features

• Material: Fluoroelastomer (VT) for chemical resistance
• Function: Cylinder packing and sealing for high-pressure applications
• Durability: Resistant to wear in cyclic pump operations
• OEM Grade: Maintains tight tolerances for reliable performance

Technical Specifications

Installation & Maintenance

• Always relieve system pressure before removing or replacing the O-ring.
• Use compatible lubricant to avoid damage during installation.
• Inspect cylinder surfaces for scratches or wear before installing a new O-ring.
• Replace as part of regular maintenance or pump rebuilds to ensure reliable sealing.

Frequently Asked Questions