The GRACO 277359 Piston Seal Kit is a PTFE (polytetrafluoroethylene) seal replacement set designed for use in 2000 cc 4-Ball Lower pump assemblies. It is intended to provide chemical compatibility and reliable sealing in demanding industrial applications, particularly where standard seals may not be suitable due to aggressive fluids or environmental conditions.

Key Features:

• Piston Seal Kit
• For 2000 cc 4-Ball Lowers
• PTFE (polytetrafluoroethylene) seals
• Compatible with GRACO 2000 cc 4-Ball Lower pump assemblies (SKU:s. 24F440, 24F441, 24F442, 24F443, 24F444, 24F445, 24F447, 17K659, 17K663, 17K667, 17K671)
• PTFE material for chemical resistance
• Designed for use where standard seals are not chemically compatible
• May result in reduced cycle life compared to standard seals, but offers superior chemical resistance
• Ease of maintenance with complete kit for replacement

Applications:
Used in industrial pump systems requiring chemical compatibility, such as in mining, agriculture, and manufacturing, where aggressive fluids or solvents are present.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, performance, and longevity of the pump assembly. Non-genuine parts may compromise system reliability and safety.
• Ensure the pump is depressurized and isolated from the system before starting work.
• Follow the GRACO equipment manual for detailed disassembly and reassembly instructions.
• Inspect all components for wear or damage before installation.
• Use appropriate tools and safety equipment during installation.
• After installation, test the pump for leaks and proper operation.