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Welch™ CRVpro4 Direct Drive Rotary Vane Vacuum Pump
Offers increased reliability and longer service interval than direct drive rotary vane vacuum pumps
Supplier: Welch™ 304101
Description
- Runs 10°C cooler than comparable pumps
- Slows corrosion
- Has 40% larger oil capacity than comparable pumps
- Dilutes aggressive chemicals
- Has chemical resistant coating in oil case and pump module
- Protects non-moving parts
Ultimate pressure
- Without gas ballast partial: 5 x 10−4 mbar (4 x 10−4 Torr)
- Without gas ballast total: 2 x 10-−3 mbar (1.5 x 10−3 Torr)
- With gas ballast total: 7 x 10−2 mbar (5 x 10−2 Torr)
Specifications
| IP44 | |
| cUL and CE | |
| CRVpro4 | |
| US (NEMA - 5) | |
| 21 kg | |
| 60 Hz | |
| 115 V |
| 1450 rpm at 50 Hz; 1740 rpm at 60 Hz | |
| 46.3 x 15.7 x 23.0 cm (18.2 x 6.1 x 9.1 in.) | |
| 50 dB | |
| 46.3 lb. | |
| Vacuum Pump | |
| 67 L/min. at 50 Hz; 78 L/min. at 60 Hz |
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