The GRACO 188612 is an actuator piston made from tough acetal material, designed for use within GRACO Husky Sanitary Series Diaphragm Pumps. It functions as a key internal component that helps drive the diaphragm to move fluid through the pump system.

Key Features:

• Actuator Piston
• 188612
• Acetal
• Husky 1040, 1590, and 2150 Pumps (e.g., Model No. D7S – Husky 1040)
• Tough acetal construction for durability
• Designed for reliable operation in sanitary pump applications
• Ease of maintenance as a genuine GRACO replacement part

Applications:
Used in GRACO Husky Sanitary Series Diaphragm Pumps for fluid transfer in industrial, food processing, and chemical handling applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment.
• Ensure the pump is depressurized and isolated before disassembly.
• Follow the equipment manual for step-by-step replacement instructions.
• Inspect the actuator piston and surrounding components for wear or damage during installation.
• Use only GRACO-approved tools and replacement parts for installation.
• Regularly inspect the actuator piston for signs of wear or damage.
• Replace the actuator piston as part of scheduled maintenance or if performance issues arise.
• Keep spare actuator pistons on hand to minimize downtime.