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ChemStar Unmounted Rugged Pump for Corrosive Vapors
ChemStar® belt driven vacuum pumps are the most rugged Welch vacuum pumps for freeze drying applications. The design of these pumps makes them more tolerant of chemical contamination. The large 2.1 liters oil capacity dilutes contaminants. Lower belt drive RPM lowers operating temperature, thus reducing chemical activity. Lower RPM also results in less wear and longer operating life. Vital pump parts are corrosion resistant.
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