Welch 3081-80 CRVpro 8 Chem Chemically Resistant Vacuum Pump
Welch CRVPro 8 Chem Vacuum Pump – 3081-80
The new Welch CRVPro8 Chem vacuum pump is designed with an additional oil sump to protect the vacuum from reactive emissions commonly found in freeze drying, concentrators, and other processes containing reactive emissions such as TFA and acetonitrile. At 5.6 CFM (160 L/min), the CRVPro8 Chem is perfect for common freeze dryer sizes.
The CRVPro 8 Chem is a drop-in replacement and upgrade of the popular Welch model 8917A-80. This chemically resistant version features enhanced internal protection, making it ideal for aggressive solvent vapors and corrosive applications where standard pumps would degrade quickly.
Key Features
- Chemically enhanced oil sump for superior protection
- 5.6 CFM (160 L/min) pumping speed
- Deep vacuum performance
- Quiet and reliable direct drive design
- Excellent for freeze drying and solvent evaporation
Whether you're replacing an older 8917A-80 or looking for a more robust pump for chemical duty freeze drying, the Welch CRVPro 8 Chem delivers improved durability and consistent performance.
Welch CRVpro 8 Chem Vacuum Pump – 3081-80 Specifications
| Specification | Details |
|---|---|
| Model Number | 3081-80 |
| Oil Capacity | 2 Liters |
| Ultimate Pressure | 0.002 Torr (0.003 mbar) |
| Weight | 61.6 lbs |
| Inlet Connection | NW16 |
| 115V Order Number | 3081-80 |
| Free Air Displacement | 5.6 CFM (158 L/min) |
| Exhaust Connection | NW16 |
| Dimensions (LxWxH) | 18.2 x 11.1 x 9.2 inches (462 x 282 x 234 mm) |
| Gas Ballast | Yes |
| Agency (National Recognized Lab) | cUL |
Need help confirming compatibility or ordering? Email support@chemtechsci.com or call (484) 424-9415.
Welch CRVPro 8 Chem Vacuum Pump – 3081-80
The new Welch CRVPro8 Chem vacuum pump is designed with an additional oil sump to protect the vacuum from reactive emissions commonly found in freeze drying, concentrators, and other processes containing reactive emissions such as TFA and acetonitrile. At 5.6 CFM (160 L/min), the CRVPro8 Chem is perfect for common freeze dryer sizes.
The CRVPro 8 Chem is a drop-in replacement and upgrade of the popular Welch model 8917A-80. This chemically resistant version features enhanced internal protection, making it ideal for aggressive solvent vapors and corrosive applications where standard pumps would degrade quickly.
Key Features
- Chemically enhanced oil sump for superior protection
- 5.6 CFM (160 L/min) pumping speed
- Deep vacuum performance
- Quiet and reliable direct drive design
- Excellent for freeze drying and solvent evaporation
Whether you're replacing an older 8917A-80 or looking for a more robust pump for chemical duty freeze drying, the Welch CRVPro 8 Chem delivers improved durability and consistent performance.
Welch CRVpro 8 Chem Vacuum Pump – 3081-80 Specifications
| Specification | Details |
|---|---|
| Model Number | 3081-80 |
| Oil Capacity | 2 Liters |
| Ultimate Pressure | 0.002 Torr (0.003 mbar) |
| Weight | 61.6 lbs |
| Inlet Connection | NW16 |
| 115V Order Number | 3081-80 |
| Free Air Displacement | 5.6 CFM (158 L/min) |
| Exhaust Connection | NW16 |
| Dimensions (LxWxH) | 18.2 x 11.1 x 9.2 inches (462 x 282 x 234 mm) |
| Gas Ballast | Yes |
| Agency (National Recognized Lab) | cUL |
Need help confirming compatibility or ordering? Email support@chemtechsci.com or call (484) 424-9415.


