The GRACO Husky 515 is an air-operated double diaphragm pump featuring a polypropylene center section, polypropylene seats, PTFE balls, and TPE diaphragm. It is designed for reliable, corrosion-resistant transfer of a wide range of industrial fluids, including antifreeze, detergents, oils, and wastewater, within GRACO equipment and compatible systems.

Key Features:

• Air-operated double diaphragm pump
• Husky 515, 1/2" NPT
• Polypropylene center section, polypropylene seats, PTFE balls, TPE diaphragm (Note: Most sources specify Santoprene balls and diaphragm; PTFE balls and TPE diaphragm may be a variant or misprint—please verify with GRACO for D52915)
• Up to 15 GPM
• Maximum fluid working pressure: 100 psi (7 bar, 0.7 MPa)
• Antifreeze, detergents, oils, wastewater, hydraulic fluid, transmission fluid, cutting oil, water, ink, resins, polymers, motor oil, grease & oil
• Stall-free, low-pulsation air valve for smooth operation and rapid changeover
• Bolt-through fluid cover design for enhanced safety and leak minimization
• No mechanical seals, reducing maintenance and risk of contamination
• Lightweight (approx. 6.5 lbs), easy to install and service
• Rugged polypropylene construction resists corrosion for long life
• Easy-to-service air valve and ball checks

Applications:
Industrial fluid transfer, including car wash operations, chemical handling, wastewater treatment, lubrication systems, and general industrial pumping applications.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance while maintaining warranty and safety standards.
• Ensure proper alignment and secure mounting to prevent vibration and leaks
• Use appropriate thread sealant on NPT connections
• Check air supply for correct pressure (operates on as little as 20 psi)
• Inspect diaphragms and balls regularly for wear and replace as needed
• Follow manufacturer’s guidelines for maintenance intervals and procedures
• Regularly inspect and clean the pump and its components
• Replace diaphragms and balls as recommended or when wear is detected
• Monitor for leaks and address immediately
• Use only compatible fluids as specified by GRACO