FREE SHIPPING
Welch® WOB-L Laboratory Vacuum Pumps for Filtration
$1,443
$1,370
and up
| Image | SKU | Description | Maximum Vacuum | Ultimate Pressure | Free Air Displacement | Includes | Electrical | Quantity | Price | Add to Cart |
|---|---|---|---|---|---|---|---|---|---|---|
|
2561B-50 | WOB-L Lab Vacuum Pump for Filtration | 29.8 in Hg | 5 Torr (6.7 mbar) | 2.3 cfm (65 L/min) | Pump, Trap and Gauge | 115V, 60Hz, CE | 1 Each |
|
|
|
2567B-01 | WOB-L Lab Vacuum Pump for Filtration | 27.6 in Hg | 60 Torr (80 mbar) | 3.5 cfm (100 L/min) | Pump Only | 115V, 60Hz | 1 Each |
|
|
|
2567B-50 | WOB-L Lab Vacuum Pump for Filtration | 27.6 in Hg | 60 Torr (80 mbar) | 3.5 cfm (100 L/min) | Pump, Inlet Trap and Gauge | 115V, 60Hz | 1 Each |
|
|
|
2581B-50 | WOB-L Lab Vacuum Pump for Filtration | 29.8 in Hg | 5 Torr (6.7 mbar) | 3.5 cfm (100 L/min) | Pump, Inlet trap, Gauge, Regulator | 115V, 60Hz, UL/CSA | 1 Each |
|
|
|
2585B-50 | WOB-L Lab Vacuum Pump for Filtration | 27.6 in Hg | 60 Torr (80 mbar) | 7.1 cfm (201 L/min) | Pump, Inlet Trap and Gauge | 115V, 60Hz | 1 Each |
|
Description
Reliable WOB-L Piston pumps are perfect for many common laboratory vacuum applications. Features: Vacuum and Pressure - to 100 Torr (26"Hg). Includes Vacuum and Pressure Regulators and Gauges - simple to adjust and monitor vacuum level and delivery pressure. Inlet Water Trap - float ball rises to seal off pump from accidental ingestion of water. Muffler quiets pump and filters discharge air. For use with dry or aqueous vapor applications only.
Key Features
- Economical
- Oil Free
- Adjustable Vacuum / Pressure
Suggested Applications
- Replace Water Aspirator
- Vacuum Filtration
| Model Number | 2561 | 2567 | 2581 | 2585 |
|---|---|---|---|---|
| Applications | Vacuum Ovens less than 2 ft3 (57 liters); Vacuum filtration up to 6 funnels | Vacuum filtration up to 6 funnel manifold; Lab automation - aspiration of systems utilizing 96 / 256 well format; Welchnet lab installations up to 10 outlet fixtures (geneneral use, filtration) | Vacuum Ovens 2 to 4.5 ft3 (57 to 127 liters); Glove Box transfer chamber and purge / fill cycles - up to 30 ft3 (0.84 m3) | Vacuum filtration up to (2) 6 funnel manifolds; Lab automation - aspiration of systems utilizing 96 / 256 well format; Welchnet lab installations up to 20 outlet fixtures (geneneral use, filtration) |
| Type | Laboratory Vacuum Pump | Laboratory Vacuum Pump | Laboratory Vacuum Pump | Laboratory Vacuum Pump |
| Free Air Displacement cfm (l/min.) @60Hz | 2.3 (66) | 3.5(100) | 3.5(100) | 7.1(201) |
| Free Air Displacement m3/hr (l/min.) @50Hz | 3.3 (55) | 4.9(83) | 4.9(83) | 10(168) |
| Ultimate Pressure | 5(6.7) | 60(80) | 5(6.7) | 60(80) |
| Maximum Vacuum | 29.8 | 27.6 | 29.8 | 27.6 |
| Max Pressure PSIG (pascal) | ||||
| Motor Horsepower (watts) | 1/3(250) | 1/3(250) | 1/3(250) | 1/3(250) |
| Adjustable Vac. / Gas Ballast | Yes | Yes | Yes | Yes |
| Tubing Needed | 1/4(7) | 1/4(7) | 1/4(7) | 1/4(7) |
| Intake Thread NPT | 1/4 | 1/4 | 1/4 | 1/4 |
| Overall Dimensions LxWxH in. (cm) | 17.3x6.5x10.5 (43.9x16.5x26.7) | 15.0x10x10 (38.1x25.4x25.4) | 17x7.5x12 (43.2x42.3x19.1) | 17x7.5x12 (43.2x42.3x19.1) |
| Ship Weight | 24(10.9) | 24(10.9) | 32(14.5) | 32(14.5) |
| Shipping Carton Dimensions LxWxH in. (cm) | 21x12x15 (53x30x38) | 21x12x15 (53x30x38) | 21x12x15 (53x30x38) | 21x12x15 (53x30x38) |
| Intake Catch Jar | Yes | Yes | Yes | Yes |
| Adjustable Vacuum | Knob | Knob | Knob | Knob |
| Adjustable Pressure | ||||
| Vacuum Gauge | Dial | Dial | Dial | Dial |
