Description
 Welch WOB-L Pump 2561
Reliable WOB-L Piston pump is perfect for many common laboratory vacuum applications. Features: Vacuum to 5 Torr (29.8"Hg). Includes Vacuum Regulator and Gauge - simple to adjust and monitor vacuum level. 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.
Features:
- Economical
- Oil Free
- Adjustable Vacuum
Applications:
Vacuum Filtration
- Many filtrations require only minimal vacuum to proceed; deep vacuum is not required. Vacuum pump flow required is roughly proportional to the total surface area of filters being used. Filtration of particulate-clogging samples can be improved somewhat with deeper vacuum, but a combination of larger filter surface area, smaller samples, and sequential use of decreasing porosity filter papers may also be required for timely filtration. Choose a standard duty vacuum pump for aqueous vapors; use a PTFE pump for resistance to harsh chemicals.Â
Specifications:
| Applications | 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) |
|---|---|
| Type | Laboratory Vacuum Pump |
| Free Air Displacement cfm (l/min.) @60Hz | 3.5(100) |
| Free Air Displacement m3/hr (l/min.) @50Hz | 4.9(83) |
| Ultimate Pressure | 60(80) |
| Maximum Vacuum | 27.6 |
| Max Pressure PSIG (pascal) | |
| Motor Horsepower (watts) | 1/3(250) |
| Adjustable Vac. / Gas Ballast | Yes |
| Tubing Needed | 1/4(7) |
| Intake Thread NPT | 1/4 |
| Overall Dimensions LxWxH in. (cm) | 15.0x10x10 (38.1x25.4x25.4) |
| Ship Weight | 24(10.9) |
| Shipping Carton Dimensions LxWxH in. (cm) | 21x12x15 (53x30x38) |
| Intake Catch Jar | Yes |
| Adjustable Vacuum | Knob |
| Vacuum Gauge | Dial |
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