Graco 108944 Buna Ball, 715

Overview – 108944 Buna Ball / 715

This genuine OEM part is a Buna-N (nitrile) check ball used inside Graco diaphragm pumps to provide one-way sealing and reliable flow control. It plays a critical role in maintaining pump efficiency and preventing backflow within the fluid section.

Compatible Machines

• – Uses part 108944 when configured with Buna-N balls.
• / – Buna-N ball option lists part number 108944.

Key Features & Benefits

• ✔ Genuine OEM component for precise fit and dependable performance
• ✔ Buna-N material suitable for general-purpose fluids and moderate temperatures
• ✔ Restores proper check valve sealing and pump efficiency
• ✔ Direct replacement for pumps originally configured with Buna balls

Installation & Service Tips

• Fully depressurize and disconnect the pump before servicing.
• Remove the check valve plug and inspect the ball seat and cavity for wear or scoring.
• Install the new 108944 ball and torque components according to your pump manual.
• Test the pump at reduced pressure and check for leaks or irregular flow.
• For abrasive, chemical-intensive, or high-temperature applications, consider PTFE or stainless steel ball options if specified by your equipment manual.

Frequently Asked Questions