The GRACO DF3311 is a 2-inch air-operated double diaphragm pump with an aluminum center section, stainless steel seats, PTFE balls, and PTFE diaphragm. It is designed for reliable transfer of fluids, including those with solids, in industrial and maintenance applications.

Key Features:

• Air Operated Double Diaphragm Pump
• Husky 2150, 2 in. (51 mm) NPT
• Aluminum center section, stainless steel seats, PTFE balls, PTFE diaphragm
• Maximum free flow delivery: 150 gpm (568 lpm)
• Maximum working pressure: 120 psi (8.4 bar)
• Compatible with a wide range of industrial fluids and slurries, including those with solids up to 0.25 in. (6.3 mm)
• Stall-free low pulsation air valve for smooth and rapid changeover
• High reliability and ease of maintenance
• Designed for continuous duty cycle
• Typical sound level: 78 dBA
• Maximum suction lift: 20 ft. dry
• Maximum air consumption: 175 scfm

Applications:
Ideal for transferring fluids in industrial, mining, agricultural, and maintenance environments, especially where solids handling and reliability are required.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the pump.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate piping and fittings for the intended application
• Check and maintain air supply quality and pressure
• Regularly inspect and replace wear parts such as diaphragms, balls, and seats as needed
• Refer to the GRACO 2150 Operation and Parts Manual for detailed instructions