The GRACO DFH311 Husky 2150 is a 2-inch air-operated double diaphragm pump constructed from aluminum with stainless steel (SS), PTFE, and EPDM components. It is designed for robust, reliable fluid transfer in demanding industrial environments, including waste, sump, and process applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 2150, 2-inch (51 mm) connection
• Aluminum body, stainless steel (SS) fluid section, PTFE diaphragms and balls, EPDM O-rings (note: EPDM is not standard for Husky 2150; PTFE and EPDM may be a custom or mixed configuration; standard is PTFE for diaphragms and balls, but EPDM may be available for certain seals or as a custom option)
• Up to 150 gpm (568 lpm)
• Up to 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of fluids, including water, chemicals, and slurries, depending on material selection
• Stall-free, low pulsation air valve for smooth operation
• Lube-free operation
• Epoxy-coated air section for tough environments
• Externally accessible air valve for easy maintenance
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps
• Fewer parts than industry peers for simplified servicing

Applications:
Ideal for waste water, sump, process, and industrial fluid transfer applications. Suitable for use in mining, agriculture, and other demanding environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment and secure mounting
• Use appropriate fittings and hoses rated for the intended pressure and fluid
• Follow manufacturer guidelines for air supply and fluid connections
• Regularly inspect diaphragms, seals, and air valve for wear and replace as needed
• Perform routine checks on diaphragms and seals
• Keep air supply clean and dry
• Lubricate only if specified by manufacturer (note: this model is lube-free)
• Service air valve externally without removing the pump from the system