WOB-L Pump 2561, Laboratory Vacuum Pump, WELCH (CAT#: STEM-DS-1751-LC)

Reliable WOB-L Piston Pump 2561 manufactured by WELCH are suitable for many basic laboratory vacuum applications. Vacuum is up to 5 Torr.

Type: Laboratory Vacuum Pump
Free Air Displacement cfm (l/min.) @60Hz: 2.3 (66)
Free Air Displacement m3/hr (l/min.) @50Hz: 3.3 (55)
Ultimate Pressure: 5(6.7)
Maximum Vacuum: 29.8
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): 17.3x6.5x10.5 (43.9x16.5x26.7)
Ship Weight: 24(10.9)
Shipping Carton Dimensions LxWxH in. (cm): 21x12x15 (53x30x38)
Intake Catch Jar: Yes
Adjustable Vacuum: Knob
Vacuum Gauge: Dial

Vacuum is up to 5 Torr (29.8"Hg).
Vacuum and pressure regulators and pressure gauges make it easy to adjust and monitor vacuum and delivery pressure.
The float rises to seal the pump and prevent accidental ingestion of water.
The silencer silences the pump and filters the exhaust air.
Only suitable for dry or aqueous vapor applications.

ChemStar 1400N, Belt-Drive Vacuum Pump, WELCH (CAT#: STEM-DS-1757-LC)
ChemStar 1376N, Belt-Drive Vacuum Pump, WELCH (CAT#: STEM-DS-1759-LC)