Last 5 Products Reviewed
Welch 8917C-80 Freeze Dryer Pump
*****ALERT*****
Manufacture Welch Vacuum has replaced this product line with the Welch CRVpro series. This pump is no longer in production. Please find the direct replacement for this vacuum pump here:
| https://www.chemtechsci.com/products/welch-crv-pro8-catalog-3061-01-direct-drive-pump |
The Welch CRVpro series is the latest innovation in the high vacuum, direct-driven vacuum space. Vacuum users can expect increased reliability and longer service live when compared to other direct drive, rotary vane vacuum pumps.
- Consumes up to 36% less oil than comparable pumps
- Runs 10°C cooler than comparable pumps. This reduced the degradation of vacuum pump oil, increasing the running time between service intervals.
- Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals.
- Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts.
- Fast solvent sublimation
- Durable, chemical resistant performance
- Portable and powerful
Welch freeze dryer vacuum systems provide deep vacuum and excellent chemical resistance in demanding applications. Based on direct-drive rotary vane technology, the Welch freeze dryer system has an integrated oil purification module that continually neutralizes oil pH and removes particulates. This side-mounted purification module also extends pump oil volume to 1.3 liters for superior contaminent dilution and longer oil life. Achieves vacuum levels down to 1x10-4 torr (0.1 micron) with flow of 173 L/min. Use Welch Gold Oil for maximum resistance to chemical attack. Handles harsh chemicals such as TFA, acetonitrile, HBr.
*****ALERT*****
Manufacture Welch Vacuum has replaced this product line with the Welch CRVpro series. This pump is no longer in production. Please find the direct replacement for this vacuum pump here:
| https://www.chemtechsci.com/products/welch-crv-pro8-catalog-3061-01-direct-drive-pump |
The Welch CRVpro series is the latest innovation in the high vacuum, direct-driven vacuum space. Vacuum users can expect increased reliability and longer service live when compared to other direct drive, rotary vane vacuum pumps.
- Consumes up to 36% less oil than comparable pumps
- Runs 10°C cooler than comparable pumps. This reduced the degradation of vacuum pump oil, increasing the running time between service intervals.
- Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals.
- Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts.
- Fast solvent sublimation
- Durable, chemical resistant performance
- Portable and powerful
Welch freeze dryer vacuum systems provide deep vacuum and excellent chemical resistance in demanding applications. Based on direct-drive rotary vane technology, the Welch freeze dryer system has an integrated oil purification module that continually neutralizes oil pH and removes particulates. This side-mounted purification module also extends pump oil volume to 1.3 liters for superior contaminent dilution and longer oil life. Achieves vacuum levels down to 1x10-4 torr (0.1 micron) with flow of 173 L/min. Use Welch Gold Oil for maximum resistance to chemical attack. Handles harsh chemicals such as TFA, acetonitrile, HBr.