Gardner Denver Thomas Inc.
Mfg Item # : 1400C-01
High contamination tolerance Ultimate vacuum <0.001 Torr Low RPM for long service life DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

GARDNER DENVER THOMAS Part No. 1402N-50
High contamination tolerance Vital parts corrosion resistant Reduced frictional wear Nitrogen purge standard Easy attachment of accessories Recommended for use with gases such as HCl, HBr, Br_2, Cl₂, O₃, HOAC, F₃CC0₂H, CH₂0, H₂S04, H₂S, HN0₃, S0_X and others. ChemStar pumps have all five defining features needed for pumping corrosive gases. High contamination Tolerance: Made from Viton®, PTFE, Stainless Steel, Nickel Plated or Anodized, or Chemical Resistant Grade Cast Iron. Reduced Frictional Wear: Lower rotational speed results in less wear, cooler running and longer service life. ChemStar pumps rotate at speeds less than 580 RPM, compared with over 1700 RPM of direct-drive vacuum pumps. Dry Nitrogen Purge both degasses and cools the pump oil reducing the corrosion rate in the pump. Accessories (available on special order): Protective accessories may be needed for heavy corrosive gas loads which may contain particulates; Oil filtration system removes essentially all abrasive particulates (>1.0 micron) and simulataneously absorbs over 250 cc of hydrous acids or condensed moisture. An Acid Neutralization Trap can neutralize acidic gases before ingestion by the pump. Stainless Steel Hermetically-Sealed Oil Mist Eliminator automatically drains coalesced pump oil back into pump and permits exhausted corrosive gases to be piped out of the work area. These model pumps have the same specifications as the 1400B models. (1) The larger the ratio of quarts of oil to CFM of pumping, the more effective the dilution of contaminants.

DUOSEAL Pump Oil Recommended for use with DUOSEAL Vacuum Pumps. Features low vapor pressure chemical stability ideal viscosity and no additives or inhibitors. 0.95L. Exact Match 54996-208

Gardner Denver Thomas Inc.
Mfg Item # : 2050B-01
GEMINI® Dry Vacuum Pumps - Powerful Go-Anywhere Vacuum. Use in lab or field - Portable, Quiet. GEMINI pumps are DC powered – plug in to your vehicle or standard 115V outlet. Perfect for sampling, filtration, degassing, and other mid-vacuum applications. Advanced chemical resistance enables use with weak acids / bases as well as select solvents such as alcohols.