The GRACO 653512 is a polypropylene (PP) air-operated double diaphragm pump assembly, featuring a PP center section, PP end flanges, PP seats, PTFE balls, and a PO (polyolefin) diaphragm. It is designed for reliable, chemical-resistant fluid transfer in industrial applications, compatible with a wide range of aggressive chemicals and slurries.

Key Features:

• Air-operated double diaphragm pump
• Husky 2200, 2" (50.8 mm) ANSI flange
• Polypropylene (PP) center section, end flanges, and seats; PTFE balls; PO diaphragm
• Up to 200 gpm (757 lpm)
• Up to 125 psi (8.6 bar, 0.86 MPa)
• Compatible with a wide range of chemicals and slurries; available in PP and PVDF for enhanced chemical resistance
• Single-piece polypropylene center section for increased reliability and chemical compatibility
• Patented, high-reliability modular air valve (online serviceable)
• Reinforced frame for improved reliability and reduced fluid leakage
• Overmolded diaphragms available for up to 5 times longer diaphragm life
• Lube-free operation
• Compact, portable size with high flow rate

Applications:
Ideal for transferring aggressive chemicals, slurries, and abrasive fluids in industrial, mining, chemical processing, and agricultural applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure all connections are secure and compatible with the pump’s ANSI flange size (2")
• Check for proper alignment and support to prevent stress on the pump body
• Follow manufacturer guidelines for diaphragm and ball replacement to maintain performance
• Regularly inspect for leaks and wear, especially in harsh chemical environments