The GRACO 277363 is a repair kit for the pump seal, specifically designed for use in GRACO high-pressure pumps. The kit contains PTFE (polytetrafluoroethylene) piston seals, which are known for their chemical resistance and durability. Its intended use is to restore or upgrade the sealing performance within GRACO NXT and Viscount 1+ pump models, ensuring reliable operation and minimizing downtime.

Key Features:

• Pump Seal Repair Kit
• 3.5 in. Piston Seal
• PTFE (polytetrafluoroethylene)
• GRACO NXT Pump Models: Jx30xx, Jx45xx; Viscount 1+ Models: 253643, 253645
• PTFE material for chemical resistance and durability
• Designed for easy maintenance and replacement
• Reliable sealing performance for high-pressure applications
• Supports conversion to PTFE seals for improved service life

Applications:
Used for repairing or upgrading the piston seals in GRACO high-pressure pumps, commonly found in industrial lubrication, spray foam, and fluid transfer systems.

Installation Notes:

• Using genuine GRACO parts ensures optimal fit, performance, and longevity of the equipment, reducing the risk of leaks and equipment failure.
• Follow the equipment manual for detailed installation instructions
• Ensure the pump is depressurized and isolated before starting the repair
• Clean all mating surfaces thoroughly before installing new seals
• Inspect other pump components for wear and replace as necessary
• Use appropriate tools and safety equipment during installation