The GRACO D32255 is a Husky 307 air-operated double diaphragm pump featuring a polypropylene center section, acetal seats, TPE balls, and TPE diaphragm. It is designed for reliable, low-maintenance transfer of a wide range of fluids, including those with small solids, in industrial and maintenance applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 307, 3/8" NPT
• Polypropylene center section, acetal seats, TPE balls, TPE diaphragm
• Up to 7.0 gpm (26.5 lpm)
• Maximum fluid working pressure: 100 psi (7 bar, 0.7 MPa)
• Compatible with a wide range of fluids, including those with solids up to 0.06 in (1.5 mm)
• Quick and easy assembly/disassembly
• Easy-to-service air valve and ball checks
• Stall-free low pulsation air valve for smooth operation
• Operates on as little as 20 psi (1.4 bar, 0.14 MPa) air input
• Split manifold option available for pumping multiple fluids without mixing
• Every pump is tested prior to shipping
• Maximum suction lift: 12 ft (3.7 m) dry
• Maximum ambient operating temperature: 150°F (65.5°C) for polypropylene
• Typical sound level at 50 psi air: 75 dBa

Applications:
Ideal for transferring fluids in industrial, maintenance, and lubrication systems, including those with small solids. Suitable for use in mining, agriculture, and other demanding environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure all connections are secure and leak-free before operation
• Follow manufacturer guidelines for air supply and fluid compatibility
• Regularly inspect and service air valve and ball checks for optimal performance
• Refer to the pump manual for specific installation and maintenance procedures
• Use only compatible fluids and solids as specified
• Maintain recommended air pressure and flow rates
• Periodically check for wear and replace components as needed
• Store pump in a clean, dry environment when not in use