Graco 15B448 Packing O-Ring

Graco 15B448 Packing O‑Ring – Product Details & Compatibility

Compatible Machines

The Graco 15B448 Packing O‑Ring is used in Graco fluid-handling assemblies—especially in pumps and valves that demand a high-quality elastomer seal for dynamic sealing.

• Graco high-pressure pumps, diaphragm and plunger designs
• Fluid-transfer modules where packing O-rings are part of the seal assembly
• Service and maintenance kits needing Graco-spec O-ring replacements

Product Overview

The Graco 15B448 Packing O‑Ring is an OEM-grade seal made from high-performance elastomer, designed to withstand repeated cycling, maintain fluid tightness, and extend the operational life of Graco equipment.

Key Features

• Precisely molded to OEM specifications for consistent performance
• Durable elastomer resists wear, compression set, and fluid attack
• Simple-to-replace design minimizes service downtime
• Optimised for dynamic sealing under pressure and movement

Technical Specifications

Usage Notes

• Always release system pressure and isolate fluid lines before servicing.
• Clean the O-ring groove and inspect for debris or damage before installation.
• Use a compatible lubricant to help seat the O-ring without twisting.
• Ensure proper fit and compression to avoid leaks or extrusion.
• Check and replace the O-ring during regular maintenance or if leaks develop.

Frequently Asked Questions