The GRACO DU2911 Husky 1590 is an air-operated double diaphragm pump constructed with a polypropylene body, stainless steel center section, polypropylene seats, PTFE balls, and PTFE diaphragm. It is designed for remote operation and is intended for transferring a wide range of fluids in industrial environments, offering robust performance in tough conditions.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" (38.1 mm) NPT
• Polypropylene body, stainless steel center section, polypropylene seats, PTFE balls, PTFE diaphragm
• Maximum free flow delivery: 100 gpm (378.5 lpm)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Designed for use with a variety of fluids compatible with polypropylene and PTFE materials
• Patented, high-reliability closed center air valve (online serviceable)
• Epoxy-coated air section for tough environmental conditions
• Externally accessible air valve for quick, easy servicing without uninstalling the pump
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps in its class
• Fewer parts than industry peers
• No seals to leak or fail
• Quiet running (<85 dBa), with remote muffler capability for lower noise
• Maximum operating temperature: 150°F (65.5°C), diaphragm up to 220°F (104.4°C) depending on material
• Maximum pump speed: 200 cpm
• Maximum suction lift: 20 ft (6.1 m) dry
• Maximum size pumpable solids: 0.19 in (4.8 mm)

Applications:
Suitable for transferring a wide range of fluids in industrial, chemical, mining, and agricultural settings, especially where remote operation and robust, leak-free performance are required.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure all connections are secure and compatible with 1-1/2" NPT fittings
• Follow manufacturer guidelines for air supply and exhaust port connections
• Install in a location that allows easy access for maintenance and servicing
• Use appropriate safety measures when handling pressurized systems
• Regularly inspect the air valve and diaphragm for wear or damage
• Service the air valve externally without uninstalling the pump for minimal downtime
• Check for leaks and ensure all seals and connections remain tight
• Refer to the product manual for detailed maintenance schedules and procedures