Revolutionary oil-free vacuum system Deep vacuum Chemical resistant Plug & Play

Welch's ChemStar® Dry vacuum system integrates a proprietary vacuum blower with patented PTFE diaphragm technology. The result? The first chemical resistant dry pump alternative to oil-seal pumps -the technology of choice for deep vacuum chemical applications. Increase productivity > No oil-related maintenance work is required > Maintenance intervals are extended by integrated selfcleaning function > Gas ballast automatically handles high vapor loads Eliminate impacts associated with oil > Avoid oil disposal and handling mess > Stop oil contamination of samples Durable pump, repeatable vacuum...

Technical Features | Roots blower | Diaphragm vacuum pump How it works: ChemStar Dry pumps quickly down to the working pressures for most evaporative operations (10 to 0.8 torr). It is in this range that ChemStar Dry creates maximum flow for high performance evaporation -clean, fast, and thorough. There is no oil, and the system automatically maintains and protects itself for repeatable robust performance. Pumping speed, 60 Hz at 2 torr

by Gardner Denver ORDER INFORMATION Gardner Denver Room 2206, Qiangsheng Mansion No. 145 Pujian Road 200127 Shanghai China Protect ChemStar® Dry with dry ice cold trap. Extend the service interval of your Chemstar Dry by using a cold trap. Welch recommends using a cold trap with high vapor load applications including: Flash Evaporation (vacuum ovens), concentrators, processing of natural plant extracted oils or any other “sticky” substance. Gardner Denver Thomas GmbH Livry-Gargan-Str. 10 82256 Furstenfeldbruck Germany