

The Graco 189288 Ball Seat provides reliable sealing in diaphragm pump check-valve assemblies to prevent backflow.
The Graco 189288 Ball Seat is engineered to create a secure sealing surface for check balls inside pump fluid sections. Proper sealing helps prevent backflow and maintains consistent pumping efficiency.
| Part Number | 189288 |
|---|---|
| Component | Ball seat |
| Function | Check-valve sealing |
| Application | Diaphragm pump fluid sections |