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Vacuum Pumps, Water Operated (Aspirator type)
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• Made of polypropylene • Good resistance to acid and alkali • Autoclavable • Has a built-in check valve to prevent back-flow of water • Can provide vacuum of up to 28.5 inches Hg * • Can be disassembled easily for cleaning Please scroll down to purchase |
This water jet pump can be used to provide suction for filter flasks & vacuum desiccators, or use to clean up spilled liquids (spilled material will end up down the sink).
Your lab's faucet must have a hose barb on it to accept rubber / plastic tubing. A short length of tubing (not included) is used to connect the top of the pump to the hose barb.
#C1395.... $27.95 each
Ship. wt. 0.4 lb
The Kartell pumps are currently on extended backorder, ETA unknown.
Chapman aspirator, metal
Body is nickel-plated white metal. One-way valve in side tube. Water input connection is 3/8 NPT (actual O.D. being about 17 mm). Overall height of unit is 5 3/8". Side tube is 3/8" actual O.D.
#C1396 .... $26.95 ea.
* This pump operates on Bernoulli's principle. An ideally-designed water jet pump would provide a vacuum limited only by the vapor pressure of water, given sufficient water flow. Theoretically, better vacuum is achieved with cold water; at 15°C the vapor pressure of water is about 12.8 mm Hg, and at 10°C the pressure is about 9.2 mm Hg.
Additional Notes:
Despite their simplicity, aspirator pumps produce enough vacuum to present an implosion risk. Do not underestimate their power. Wear eye and face protection when working with vacuum.
Vacuum performance, as well as chemical resistance of polypropylene, generally decreases with higher temperatures.
Filtering Flasks, Buchner Funnels, and Filter Paper are on their own page.
We also have Hand Operated Vacuum Pumps
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