The GRACO D53337 is an air-operated double diaphragm pump designed for transferring a wide range of fluids. It features a polypropylene (PP) center section, stainless steel (SS) seats and balls, and a BN (Buna-N) diaphragm. This pump is intended for use in industrial applications requiring reliable, chemical-resistant fluid transfer.

Key Features:

• Air-operated double diaphragm pump
• Husky 716 AL (3/4 in. NPT)
• Polypropylene center section, stainless steel seats and balls, Buna-N diaphragm, aluminum housing
• Maximum free flow delivery: 16 gpm (61 lpm)
• Maximum fluid working pressure: 100 psi (0.7 MPa, 7 bar)
• Compatible with a wide range of industrial fluids, especially those requiring chemical resistance
• External controller for remote control capabilities
• High cycle rate (up to 400 cycles per minute)
• Robust construction for reliability and ease of maintenance
• Suitable for handling solids up to 0.09 in (2.5 mm)
• Maximum ambient operating temperature: 225°F (107°C) for fluid, 180°F (82°C) for ambient (see note below)
• Maximum suction lift: 15 ft (4.5 m) dry
• Low sound level (74 dBa at 70 psi air, 200 cpm)

Applications:
Ideal for transferring chemicals, paints, solvents, and other industrial fluids in environments requiring chemical resistance and reliability. Commonly used in mining, agriculture, manufacturing, and maintenance operations.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the pump. Non-genuine parts may compromise reliability and void warranties.
• Ensure all connections are tight and leak-free before operation
• Use appropriate thread sealant for NPT connections
• Install the pump in a location with adequate ventilation and access for maintenance
• Follow manufacturer guidelines for air supply and exhaust routing
• Regularly inspect diaphragms, balls, and seats for wear and replace as needed