The GRACO 189426 is a Santoprene diaphragm designed for use in Husky 1590 series air-operated diaphragm pumps. It is made from Santoprene, a durable thermoplastic elastomer, and serves as a critical sealing and pumping component within the pump assembly.

Key Features:

• Diaphragm
• 1.5 (for Husky 1590 series)
• Santoprene (thermoplastic elastomer)
• Husky 1590 series air-operated diaphragm pumps
• Exceeds 72-hour salt spray test
• Dirt-excluding check ball
• Designed for reliability and long service life
• Ease of maintenance and replacement

Applications:
Used in air-operated diaphragm pumps for transferring a wide range of fluids in industrial, mining, and agricultural applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with Husky 1590 series pumps.
• Ensure the pump is depressurized and isolated before replacing the diaphragm.
• Follow the manufacturer's guidelines for diaphragm installation to prevent leaks and ensure proper sealing.
• Inspect and clean the diaphragm chamber and related components before installing the new diaphragm.
• Regularly inspect the diaphragm for wear or damage.
• Replace the diaphragm as part of routine maintenance to prevent pump failure.
• Use only genuine GRACO replacement parts for best results.