The GRACO D42911 is a Husky 515 air-operated double diaphragm pump constructed primarily from polypropylene (PP). It is designed for reliable, leak-free transfer of fluids in industrial applications, offering robust performance and easy maintenance within GRACO equipment.

Key Features:

• Air-operated double diaphragm pump
• Husky 515, 1/2 in. (13 mm) BSP
• Polypropylene (PP) center section and components
• Up to 15 gpm (56.7 lpm)
• Operates on as little as 20 psi (1.4 bar, 0.14 MPa)
• Designed for use with a wide range of industrial fluids; split manifold option available for pumping multiple fluids without mixing
• Stall-free low pulsation air valve for smooth and rapid changeover
• Bolt-through fluid cover design eliminates leaks and enhances safety
• No mechanical seals to cause fluid leaks or failures
• Runs quietly at less than 85 dBa with remote muffler capability
• Easy-to-service air valve and ball checks
• Fully-groundable acetal model
• Reliable air valve for years of dependable performance

Applications:
Ideal for transferring a variety of fluids in industrial, chemical, and process environments where leak-free, reliable, and low-maintenance operation is 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 fittings and hoses for the intended fluid and pressure
• Follow all safety guidelines and manufacturer recommendations
• Regularly inspect and maintain air valve and ball checks for continued reliability