The GRACO D31311 is an air-operated double diaphragm pump designed for reliable fluid transfer. It features a polypropylene center section, stainless steel seats, PTFE balls, and PTFE diaphragms, making it suitable for handling a variety of liquids including oils, fuels, water, and antifreeze. This pump is intended for use in dosing, dispensing, and transferring fluids within industrial and maintenance applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 307, 3/8" NPT
• Polypropylene center section, stainless steel seats, PTFE balls, PTFE diaphragms
• Up to 7 gpm (26.5 l/min)
• Maximum workload: 7 bar (100 psi)
• Suitable for oils, fuels, water, antifreeze, and UL-approved for gasoline (up to 10% ethanol), diesel, heating oil, and lube oil
• UL approved for certain fuel applications
• Quick and easy assembly/disassembly
• Easy-to-maintain air valve and ball check valves
• Stall-free low pulsation air valve for smooth operation
• Split manifold option for pumping multiple fluids without mixing
• Operates on as little as 20 psi (1.4 bar, 0.14 MPa)
• Fully-groundable acetal model

Applications:
Pumping and discharging oil, dosing and pumping fuel, dosing windscreen washing solutions, dosing water and antifreeze, and other industrial fluid transfer tasks.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety, and maintains warranty coverage.
• Ensure all connections are secure and leak-free before operation
• Follow manufacturer guidelines for air supply and fluid compatibility
• Regularly inspect and maintain air valve and ball check valves for optimal performance
• Use appropriate personal protective equipment during installation and maintenance