Vacuum Pumps
Electrical pumps that create a partial vacuum for rotary evaporation, concentration, distillation, degassing solutions, gel drying, blotting, freeze-drying; used with small vacuum ovens, filtration flasks, manifolds; motors can be oil-free.
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Flow Rate
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Maximum Pressure
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Pump Type
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121
Welch™ CRVpro8 Chem Pump
Provides reduced risk of chemical attacks and oil breakdown by diluting chemical vapors with a larger oil chamber, slowing down corrosion by cool running operation.
122
123
Welch™ CRVpro4 Direct Drive Rotary Vane Vacuum Pump
Offers increased reliability and longer service interval than direct drive rotary vane vacuum pumps
| Noise Level | 50 dB |
|---|---|
| Motor Speed | 1450 rpm at 50 Hz; 1740 rpm at 60 Hz |
| Dimensions (L x W x H) | 46.3 x 15.7 x 23.0 cm (18.2 x 6.1 x 9.1 in.) |
| Motor Type | IP44 |
| Air Displacement | 67 L/min. at 50 Hz; 78 L/min. at 60 Hz |
| Model | CRVpro4 |
| Frequency | 60 Hz |
| Weight (English) | 46.3 lb. |
| Certifications/Compliance | cUL and CE |
| Product Line | Vacuum Pump |
| Weight (Metric) | 21 kg |
124
| Shipping Weight (Metric) | 7.7 kg |
|---|---|
| For Use With | Vacuum filtration, vacuum oven, vacuum chamber/roughing, desiccation, aspiration, automation, cell culture |
| Overall Width (English) | 8.8 in. |
| Pump Type | Vacuum Pump |
| Overall Height (English) | 10 in. |
| Overall Length (Metric) | 25.4 cm |
| Horsepower | 0.25 hp |
| Voltage | 230 V |
| Model | 2546 |
| Weight (English) | 13.8 lb. |
| Overall Length (English) | 8.1 in. |
| Certifications/Compliance | CE |
| Shipping Weight (English) | 17 lb. |
| Maximum Pressure | 80 mbar |
| Overall Height (Metric) | 22.9 cm |
| Weight (Metric) | 6.3 kg |
125
Welch™ Vacuum Filtration Pump
Economical chemical duty vacuum filtration pump for common life science and environmental lab vacuum operations
126
Welch™ Compact Aspiration/Filtration Vacuum Stations: Aspiration/Pressure Transfer Station Model 2511 Series
Accumulate waste liquids safe and easily. Aspiration systems prevent ingestion of fluids leading to vacuum pump failure.
128
Gast™ Oil-Less Diaphragm-Type Pressure/Vacuum Pump
Pressure/vacuum pumps with 1/8hp motor for medium pressure and solid vacuum applications
129
Welch™ CRVpro Direct Drive Rotary Vane Vacuum Pump
Offers increased reliability and longer service interval than direct drive rotary vane vacuum pumps
| Pump Type | Rotary Vane Vacuum Pump |
|---|
131
132
Oakton™ Portable Vacuum/Pressure Station, Free air capacity: 0.32cfm
Air Cadet Portable Vacuum/Pressure Station features lightweight, plastic housing, and an integral handle for easy transport.
133
Welch™ Economical High Capacity PTFE Diaphragm Vacuum Pumps
For oil-free chemical duty vacuum applications (1.5 to 760 TORR)
| Includes | Line cord and plug |
|---|---|
| Electrical Requirements | 115 V 60 Hz |
| For Use With | Large vacuum ovens(>5 CF), floor model rotovaps, concentrators, pilot plants, vacuum source for filtration at multiple workstations and vacuum autoclaves |
| Voltage | 115 V |
| Frequency | 60 Hz |
| Material | Fluoroplastic |
134
Environmental Express™ Variable Speed Metering Pump
Fluid metering pump with PTFE and Stainless Steel Construction
| Voltage | 115 V |
|---|
135
