Description
The Welch 2163B-01 DuoSeal Vacuum Pump is a rugged, belt-driven rotary vane vacuum pump engineered for laboratories and facilities that require consistent, deep vacuum levels and extended operating life. Designed to deliver excellent performance at low ultimate pressures, the 2163B-01 is a top choice for applications such as freeze drying, vacuum ovens, filtration, and distillation.
Its oil-sealed, two-stage design ensures low backstreaming, extended oil life, and minimized contamination risks. The pump operates quietly and efficiently, built to handle demanding workloads with minimal maintenance.
The belt-drive configuration allows for easy service access and helps maintain performance by isolating motor heat from the pumping mechanism. The DuoSeal 2163B-01 is ideal for research labs, industrial production lines, and medical facilities.
Key Features
- Belt-driven rotary vane design for high durability
- Two-stage oil-sealed vacuum pump
- Provides deep vacuum levels with low backstreaming
- Quiet operation – reduced lab noise fatigue
- Long-life oil system for reduced maintenance
- Built to handle continuous or high-demand use
- Ideal for freeze drying, vacuum ovens, distillation setups, filtration
- Easy-access serviceability
Specifications Table
| Specification | Welch 2163B-01 DuoSeal Vacuum Pump |
|---|---|
| Pump Type | Rotary Vane, Belt-Driven |
| Number of Stages | Two |
| Power Source | Varies by model – typically 115V or 230V |
| Ultimate Pressure | Deep vacuum (typically below 1 x 10⁻³ Torr) |
| Oil Type | Welch 1407K-11 or 1407K-15 |
| Applications | Freeze Drying, Distillation, Vacuum Ovens |
| Cooling | Air-cooled |
| Mounting | Floor/Benchtop |





