Graco 15A068 PE‑UHMW Vee Packing – Premium Piston Seal
Compatible Machines
- Graco 245352 Series A Displacement Pump
- Graco 245353 Series A Displacement Pump
- Graco Merkur 15:1 Ratio Pump Package
- Other Graco positive‑displacement piston systems requiring UHMWPE piston vee sealing
Product Overview
The Graco 15A068 PE‑UHMW Vee Packing is a high-precision piston seal specifically developed for Graco’s demanding industrial and displacement pumps. Constructed from PE‑UHMW (Ultra‑High Molecular Weight Polyethylene), this Vee-shaped packing combines wear-resistant properties with low friction, ensuring consistent piston performance and long-term durability.
This packing is ideal for high-cycle pumps, offering excellent resilience under pressure and smooth reciprocating motion, while significantly reducing leakage and maintaining system integrity.
- Made from ultra-durable PE‑UHMW for superior wear and chemical resistance
- Optimized V-profile ensures tight dynamic sealing under high pressure
- Precision OEM design for exact fit in Graco piston assemblies
- Minimizes internal friction, contributing to smoother pump operation
- Built to handle high stroke counts and extended service intervals
Technical Specifications
| Part Number | 15A068 |
| Material | PE‑UHMW (Ultra‑High Molecular Weight Polyethylene) |
| Seal Type | Vee Packing (Piston) |
| Typical Configuration | Installed in a 3‑ring stack in compatible Graco pumps |
| Intended Use | Dynamic piston sealing in displacement pumps |
| Chemical Compatibility | Resists solvents, coatings, resins, and other industrial fluids |
| Durability | Designed for high stroke life and sustained sealing performance |
Installation & Maintenance
- Orient the rings correctly in the piston gland to ensure uniform compression.
- Pre-lubricate with a compatible grease to minimize initial friction.
- Torque the gland nut per Graco’s specification to avoid over-compression.
- Inspect periodically for wear, extrusion, or leakage signs.
- Keep spare packings on hand for preventative maintenance and minimize downtime.
Frequently Asked Questions
PE‑UHMW offers exceptional abrasion resistance and a very low friction surface, enabling long service life in reciprocating systems and reliable sealing under load.
It is used in Graco displacement pumps such as Series A models (for example, 245352 and 245353) and other systems requiring high-duty piston vee packing.
Replace the packing if you observe leakage, ring deformation, or reduced sealing efficiency. Regular inspections during maintenance cycles help catch wear early.
