Aro/ingersoll-rand 637427-AA Diaphragm Pump Repair Kit

Product Description

The ARO/INGERSOLL-RAND 637427-AA is a fluid section repair kit designed for 1/2 inch and 3/4 inch air-operated double-diaphragm (AODD) pumps. The kit restores the wetted fluid section to factory condition by replacing the three primary wear components: balls, diaphragms, and seals. All wetted parts are Santoprene, a thermoplastic elastomer that handles a broad range of fluids including mild chemicals, slurries, and viscous materials. This kit is installed by maintenance technicians and pump service professionals performing scheduled preventive maintenance or emergency repair on diaphragm pump systems.

This fluid section repair kit is suited for industrial, commercial, and light process applications where 1/2 inch and 3/4 inch ARO/INGERSOLL-RAND diaphragm pumps are in service. Typical installation scenarios include fluid transfer systems in manufacturing, chemical handling, and general plant maintenance environments. The Santoprene construction makes the kit appropriate for applications that require flexible, chemically resistant wetted components across a range of operating temperatures.

Key Features

• Fits 1/2 inch and 3/4 inch ARO/INGERSOLL-RAND diaphragm pumps
• Santoprene construction on all included wetted components
• Kit includes balls, diaphragms, and seals for a complete fluid section rebuild
• Restores pump performance without replacing the full pump body
• Sold as a single kit with all components included

Compatibility

Designed for use with ARO/INGERSOLL-RAND 1/2 inch and 3/4 inch air-operated diaphragm pumps requiring a fluid section repair with Santoprene wetted components.

Installation Notes

Fluid section repair on diaphragm pumps should be performed by a qualified maintenance technician or pump service professional. Before beginning any repair, depressurize the pump, isolate the fluid supply lines, and bleed any residual air pressure from the system. Inspect the pump manifolds and housing for wear or damage before installing new components. Follow the manufacturer service documentation for proper assembly sequence to ensure correct seating of balls and diaphragms.