

OEM fluid section repair kit restoring sealing integrity and performance in Graco 1590HS FL air-operated double diaphragm pumps configured for SP/EP material compatibility.
| Pump Series | Model Type | Application |
|---|---|---|
| Graco 1590HS FL | High-Pressure Fluid Section Pumps | Industrial fluid transfer, chemical processing, sanitary applications |
| Graco Husky 1590 Series (HS Platform) | Air-Operated Double Diaphragm Pumps | Paint, coatings, solvents, and medium-viscosity fluids |
The Graco 25R684 Kit, 1590HS FL, --, SP, EP is an OEM fluid section repair kit designed for Graco 1590HS FL series air-operated double diaphragm pumps. It is used to restore or maintain the pumping efficiency of the fluid section by replacing wear components such as diaphragms, seals, and internal valve parts.
In Graco’s configuration system, 1590HS FL, --, SP, EP defines the pump build specification: the pump model (1590HS FL), internal configuration (--), ball material (SP), and diaphragm/gasket material (EP). This ensures the repair kit matches the exact chemical compatibility and performance requirements of the pump.
This kit is part of Graco’s precision-engineered maintenance solutions, ensuring consistent performance in demanding industrial environments where downtime must be minimized.
Based on Graco configuration documentation, the 25R684 kit is specifically engineered for the 1590HS FL fluid section platform and is not universally interchangeable with other 1590 variants unless the configuration codes (SP, EP, FL build) match exactly.