The GRACO 653511 is a polypropylene (PP) air-operated double diaphragm pump featuring a single-piece polypropylene center section, polypropylene end flanges and seats, PTFE balls, and a PTFE diaphragm. It is designed for reliable, leak-resistant transfer of a wide range of fluids, especially in applications requiring chemical compatibility and robust construction.

Key Features:

• Air-operated double diaphragm pump
• Husky 2200, 2 in (50.8 mm) ANSI porting
• Polypropylene (PP) center section, end flanges, and seats; PTFE balls and diaphragm
• Maximum free flow delivery: 200 gpm (757 lpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
• Compatible with a wide range of chemicals due to polypropylene and PTFE construction
• Single-piece polypropylene center section for increased reliability and chemical compatibility
• Patented, high-reliability modular air valve that is online serviceable
• Reinforced frame for improved reliability and to eliminate fluid leakage
• Overmolded diaphragms available for up to 5 times longer diaphragm life (note: this model uses PTFE diaphragm)
• Lube-free operation
• Compact, portable size with high flow rate
• 2 in (50.8 mm) ANSI center and end-porting options

Applications:
Suitable for transferring a wide variety of fluids, including corrosive and abrasive chemicals, in industries such as mining, agriculture, chemical processing, and general industrial applications. Ideal for applications requiring chemical resistance and robust, leak-resistant performance.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment. Non-genuine parts may compromise safety and efficiency.
• Ensure all connections are secure and compatible with 2 in (50.8 mm) ANSI porting
• Follow GRACO’s recommended installation procedures for air-operated diaphragm pumps
• Regularly inspect diaphragms, balls, and seats for wear and replace as needed
• Use appropriate safety measures when handling chemicals and during installation/maintenance