Rugged, quiet-running 2-stage rotary vane vacuum pump. Delivers 2.1 CFM at ultimate vacuum of 1.5 x 10⁻³ Torr. Ideal for labs requiring high performance and reliability.
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The Welch CRVpro 4 High Vacuum Pump (Model 3041-01) is engineered for laboratory professionals who demand powerful performance, whisper-quiet operation, and long-lasting durability. This 2-stage rotary vane pump provides deep vacuum levels down to 1.5 x 10⁻³ Torr, with a free air displacement of 2.1 CFM (60 LPM).
Designed with cool-running internal surfaces and built-in thermal protection, the CRVpro 4 minimizes risk of overheating and prolongs oil life—making it a reliable workhorse for continuous or high-load operations.
Its direct-drive motor, 115V power, and compact footprint make it ideal for applications such as freeze drying, vacuum ovens, concentrators, distillation setups, and glove boxes. This pump is also whisper-quiet, reducing noise fatigue in busy lab environments.
Key Features
Specifications Table
| Specification | Welch CRVpro 4 (3041-01) |
|---|---|
| Pump Type | 2-Stage Rotary Vane |
| Free Air Displacement | 2.1 CFM (60 LPM) |
| Ultimate Pressure | 1.5 x 10⁻³ Torr |
| Motor Type | Direct Drive |
| Voltage | 115V / 60Hz |
| Inlet Connection | KF 16 |
| Oil Capacity | 0.42 Liter |
| Weight | 26.2 lbs (11.9 kg) |
| Applications | Freeze Drying, Distillation, Ovens, Gloveboxes |
| Weight | 57.3 lbs |
|---|---|
| Dimensions | 23 × 13 × 13 in |
| Model/CFM/Voltage | CRVpro4 2.8 CFM 120V, CRVpro6 4.2 CFM 120V, CRVpro8 5.6 CFM 120V, CRVpro16 11.6 CFM 120V, CRVpro30 22.1 CFM 120V, CRVpro30 22.1 CFM 240V, CRVpro48 34 CFM 240V 3 PH, CRVpro65 46 CFM 240V 3PH |
