

The Graco B23DA1 Pump Assembly is a reliable bellows pump for industrial coatings, providing consistent pressure and enhanced sealing. Key specifications at a glance:
The Graco B23DA1 Pump Assembly is a genuine OEM bellows‑style pump with a 23:1 ratio and 100 cc displacement, engineered for industrial coatings and fluid transfer applications. It features a bellows piston design with robust wetted parts and U‑cup packings for improved sealing and long life. ([tfpumps.com](https://tfpumps.com/product/graco-merkur-b23da1-bellow-style-piston-pump-23-1-no-datatrak-low-noise-exhaust-packings-u-cup-packings/?utm_source=chatgpt.com))
| Specification | Details |
|---|---|
| Part Number | B23DA1 |
| Pump Type | Bellows Displacement Pump |
| Displacement Volume | 100 cc per cycle |
| Ratio | 23:1 |
| Packing Style | U‑cup packings |
| Fluid Inlet / Outlet | 3/4″ NPT / 3/8″ NPT |
| Max Pressure | 2300 psi (159 bar) |
| Wetted Materials | PEEK, PTFE, Stainless Steel, Tungsten Carbide, UHMWPE |
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