

The Graco 101178 Metallic Ball is a durable check-valve component used in lubrication and industrial pump systems for reliable sealing and fluid control.
Always confirm with your unit’s parts list before ordering.
The Graco 101178 Metallic Ball is a hardened metal check-ball used in the fluid/check-valve assembly of various Graco industrial and lubrication pumps. It provides a positive seal to prevent backflow, stabilize prime, and maintain consistent pump pressure.
| Part Number | 101178 |
|---|---|
| Component Type | Metallic check-ball for pump fluid/check-valve assemblies |
| Typical Reference Size | Commonly referenced as 1-1/4″ ball in certain pump breakdowns (confirm in your manual) |
| Primary Application | Lubrication & industrial pump lines (e.g., Fire-Ball®, Monark®, President®, Senator®, King®) |
| Function | Seals against the seat to prevent reverse flow and maintain prime |
| Material | Metallic (durable, wear-resistant; verify media compatibility) |