$ 2,254.42
Details
Specifications EconomicalOil FreeAdjustable Vacuum / PressureUse these affordable oil-free pumps to provide convenient vacuum throughout the lab. Welch WOB-L piston pumps provide adjustable vacuum for filtration, SPE, vacuum ovens, and more. These pumps are an efficient alternative to water aspirators. Select vacuum range 100 to 5 torr; flow range 22 to 201 l/min. For use with dry or aqueous vapor applications only.Includes Vacuum and Pressure Regulators and Gauges - simple monitoring and adjustment of 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.1-head models – Ideal for filtering and SPE. Select low flow model for 1-2 filter funnels; higher flow model for up to 6 filter funnels. Can also be used as pressure pumps.2-head models – Use low vacuum / high flow for filter manifolds or lab automation; select high vacuum (e.g. 5 torr) / high flow for vacuum ovens.Thomas No.ModelStagesFree Air Dis. (L/min)Max. Vac. (in. Hg)Tubing ID (in.)Weight (lbs.)7893N65/ 1233K772522One2226.01/4157893N67/ 1233K782534One3427.21/4157893N69/1233K79/1233K802545One4527.61/418.51233K81/ 1233K82/1233K83/1233K842565One8827.63/821.57893N85/1233K852585One20127.63/827.57893N902560Two4529.63/816.57893N952580Two9929.63/822.5Thomas No.ModelStagesFree Air Disp. (L/min.)Max Vac. (in. Hg)Tubing ID (in.)Weight (lbs.)7893N40/ 1233K672010One12.725.51/48.37893N42/ 1233K662012One22261/4187893N46/1233K68/ 1233K69/1233K702015One4526.71/4227893N44/ 1233K722022Two2229.61/4221234X10/ 1233K712021B01One2229.851/49.11234X11/ 1233K752030B01One3229.61/49.11234X12/ 1233K762031B01One3229.851/49.1
