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Center Plate Chemstar Silver
Eliminate messy oil maintenance, the threat of oil contamination to your sample, and cold trapping in many applications. Handle even high chemical vapor loads for simple, efficient deep vacuum. ChemStar Dry excels where no dry vacuum pump has before – the first practical alternative to oil-seal rotary vane pumps.
ChemStar Dry automates High Performance vapor flow (to 150L/min) at working vacuum levels (0.08 to 10 torr). Chemical resistant, max. vacuum is 0.05 torr. Smart system control coordinates vacuum blower / PTFE diaphragm pump operation to respond to any vapor load quickly and efficiently. Self-cleaning air purges remove condensable vapors between runs for repeatable top performance and extended diaphragm life.
Applications include:
Save the time, expense, and hassle of oil-seal vacuum pumping with ChemStar Dry – a cutting edge product from Welch Vacuum Technology.
For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have allowed Welch to develop an in-depth knowledge of selecting the correct vacuum pump solution for many laboratory applications.Welch's innovative engineering provides industry-leading designs for belt-drive and direct-drive vacuum pumps, dry (oil-free/oil-less) PTFE diaphragm pumps and dry WOB-L® piston pumps. Welch also enables walk-away control for vacuum-induced evaporation with our Self-cleaning dry PTFE diaphragm pump systems.For vacuum maintenance of commercial and industrial refrigeration and HVAC systems, Welch offers a complete line of refrigeration servicing pumps. Because of the famous Durability of Welch products, many of our pumps are still in service decades after purchase. If you need to repair or refurbish your Welch pump, see our Repair Service for fast restoration at a fair price. For do-it-yourself repairs, find your pump model number for original Welch component repair kits.br>
Pump Range Interactive Catalog

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Last Updated 102025
Eliminate messy oil maintenance, the threat of oil contamination to your sample, and cold trapping in many applications. Handle even high chemical vapor loads for simple, efficient deep vacuum. ChemStar Dry excels where no dry vacuum pump has before – the first practical alternative to oil-seal rotary vane pumps.
ChemStar Dry automates High Performance vapor flow (to 150L/min) at working vacuum levels (0.08 to 10 torr). Chemical resistant, max. vacuum is 0.05 torr. Smart system control coordinates vacuum blower / PTFE diaphragm pump operation to respond to any vapor load quickly and efficiently. Self-cleaning air purges remove condensable vapors between runs for repeatable top performance and extended diaphragm life.
Applications include:
- Schlenk line drying manifolds
- Vacuum ovens
- Freeze dryers up to 6 L
- Centrifugal concentrators
- Many other deep vacuum applications
Save the time, expense, and hassle of oil-seal vacuum pumping with ChemStar Dry – a cutting edge product from Welch Vacuum Technology.
For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have allowed Welch to develop an in-depth knowledge of selecting the correct vacuum pump solution for many laboratory applications.Welch's innovative engineering provides industry-leading designs for belt-drive and direct-drive vacuum pumps, dry (oil-free/oil-less) PTFE diaphragm pumps and dry WOB-L® piston pumps. Welch also enables walk-away control for vacuum-induced evaporation with our Self-cleaning dry PTFE diaphragm pump systems.For vacuum maintenance of commercial and industrial refrigeration and HVAC systems, Welch offers a complete line of refrigeration servicing pumps. Because of the famous Durability of Welch products, many of our pumps are still in service decades after purchase. If you need to repair or refurbish your Welch pump, see our Repair Service for fast restoration at a fair price. For do-it-yourself repairs, find your pump model number for original Welch component repair kits.br>
Pump Range Interactive Catalog
(this file will open in a new browser tab)
Last Updated 102025
Ships from Mississauga, ON
CAD$841.00
CAD$740.08
- Availability: Please Call to Confirm