The GRACO DC3311 is an air-operated double diaphragm pump featuring an aluminum center section, stainless steel seats, PTFE balls, and PTFE diaphragms. It is designed for high-flow, reliable fluid transfer in industrial applications, suitable for handling a variety of fluids including those with small solids.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Aluminum center section, stainless steel seats, PTFE balls, PTFE diaphragms
• 100 gpm (378.5 lpm)
• 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of industrial fluids, including those with solids up to 0.19 in (4.8 mm)
• High-reliability closed center air valve (online serviceable)
• Epoxy-coated air section for tough environments
• Lube-free operation
• Compact and portable design
• Easy-to-service air valve and ball checks

Applications:
Ideal for industrial fluid transfer, including mining, agriculture, chemical processing, and general manufacturing. Suitable for handling fluids with small solids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment of inlet and outlet connections (1-1/2" NPT or BSP or ANSI flange)
• Use appropriate thread sealant for leak-free installation
• Check air supply for correct pressure and cleanliness
• Inspect diaphragms and balls regularly for wear and replace as needed
• Follow manufacturer guidelines for maintenance intervals
• Regularly inspect and clean pump components
• Replace worn parts with genuine GRACO components
• Monitor pump performance for signs of reduced flow or pressure
• Keep air supply free of moisture and contaminants