The GRACO 15B312 is a replacement diaphragm made from BUNA-N (nitrile rubber), designed for use in Husky 1590 series air-operated double diaphragm pumps. It is intended to facilitate fluid transfer in industrial applications by providing a flexible, chemical-resistant barrier between the air and fluid chambers.

Key Features:

• Diaphragm
• Husky 1590 Series, 1.5-inch (1 1/2") port size
• BUNA-N (nitrile rubber)
• GRACO Husky 1590 series air-operated double diaphragm pumps, also compatible with some Verder pneumatic diaphragm pumps with 1.5-inch port size
• Chemical resistance (BUNA-N material suitable for a wide range of fluids)
• Designed for easy replacement and maintenance
• Reliable performance in demanding industrial environments

Applications:
Fluid transfer in industrial settings such as mining, agriculture, chemical processing, and general manufacturing. Suitable for use with fluids compatible with BUNA-N material.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety of the pump. Non-genuine parts may compromise pump efficiency and longevity.
• Always follow the manufacturer’s installation instructions and torque specifications for all fasteners.
• Ensure the pump is depressurized and isolated from fluid and air sources before servicing.
• Align the diaphragm and related components carefully to prevent leaks and ensure proper operation.
• Refer to the Husky 1590 installation manual for detailed step-by-step guidance.
• Regularly inspect diaphragms for wear, cracks, or chemical degradation.
• Replace diaphragms at recommended intervals or when signs of failure are detected.
• Use only compatible fluids and solvents as specified in the equipment manual.