WELCH DRYFAST ULTRA 2042 2042B-01 DIAPHRAGM PUMP ~ TESTED TO 3 MBAR

• Applications: Rotary Evaporation/Distillation (lowvolatility solvents <160oC B.P., ~ 2 Liter), Centrifugal Concentrators, Vacuum ovens (mid- size), pumping harsh vapors & gases
• Free Air Displacement cfm (l/min.) @60Hz 1.2(35)
• Free Air Displacement m3/hr (l/min.) @50Hz 1.75(29)
• Ultimate Pressure 2(2.7)
• Maximum Vacuum 29.85

I powered this on and was able to measure a vacuum to 3 mbar with this pump. Some squeaking from the system when it was sub 5 mbar, did not affect the vacuum generation was probably a belt of some sort.