Welch CRVpro2 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump. Includes vacuum inlet hose bard for rubber hose from (5/8 to 3/4 in. ID) and a charge of oil, 2-Stage 115VAC. Welch Part Number: 3021-01. The Welch CRVpro2 series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRV pro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion.These Welch CRVpro2 pumps are offered in 115V, 60Hz & 230V, 60Hz operation models. The CRVpro2 can achieve an ultimate pressure of 2x10 -4 Torr with a 1.8 CFM and has KF 16 Outlet and Inlet Hose Barb. The CRVpro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual for the Welch CRV is available by downloading the .pdf.

Welch CRVpro4 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump, 2-Stage 115VAC. Welch Part Number: 3041-01. The Welch CRVpro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRV pro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRVpro 4 & 6 have a 1150ml capacity, compared to the 700ml capacity of an Edwards RV-3. With a larger oil reservoir, these CRVpro series pumps have a greater capacity to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion.These Welch CRVpro 4 pumps are offered in 115V, 60Hz & 230V, 60Hz operation models. The CRVpro 4 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 2.8 CFM and has KF 16 inlet and exhaust flanges. This pump comes with a quart of Welch DirecTorr Hydrocarbon Oil. The CRVpro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual for the Welch CRV is available by downloading the .pdf below at Downloads.

Welch CRVpro4 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump. 2-Stage 220-240VAC. Welch Part Number: 3042-00. The Welch CRVpro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRV pro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRVpro 4 & 6 have a 1150ml capacity, compared to the 700ml capacity of an Edwards RV-3. With a larger oil reservoir, these CRV pro series pumps have a greater ability to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion.These Welch CRVpro 4 pumps are offered in 115V, 60Hz & 230V, 60Hz operation models. The CRVpro 4 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 2.8 CFM and has KF 16 inlet and exhaust flanges. This pump comes with a quart of Welch DirecTorr Hydrocarbon Oil. The CRV pro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual for the Welch CRVpro is available by downloading the .pdf below at Downloads.

Welch CRVpro6 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump, 2-Stage 115VAC. Welch Part Number 3061-01. The Welch CRVpro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRV pro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRV pro 4 & 6 have a 1150ml capacity, compared to the 700ml capacity of an Edwards RV-3. With a larger oil reservoir, these CRV pro series pumps have a greater ability to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion.These Welch CRV pro 6 pumps are offered in 115V, 60Hz & 230V, 60Hz operation models. The CRV pro 6 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 4.2 CFM and has KF 16 inlet and exhaust flanges. This pump comes with a quart of Welch DirecTorr Hydrocarbon Oil. The CRV pro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual for the Welch CRV is available by downloading the .pdf below at Available Downloads.

Welch CRVpro6 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump, 2-Stage 220-240VAC. Welch Part Number: 3062-00. The Welch CRV pro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRV pro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRVpro 4 & 6 have a 1150ml capacity, compared to the 700ml capacity of an Edwards RV-3. With a larger oil reservoir, these CRV pro series pumps have a greater ability to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion.These Welch CRVpro 6 pumps are offered in 115V, 60Hz & 230V, 60Hz operation models. The CRVpro 6 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 4.2 CFM and has KF 16 inlet and exhaust flanges. This pump comes with a quart of Welch DirecTorr Hydrocarbon Oil. The CRVpro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual for the Welch CRV is available by downloading the .pdf below at Downloads.

Welch CRVpro8 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump, 2-Stage 115VAC. Welch Part Number 3081-01. The Welch CRVpro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRV pro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRV pro 8 pumps have a 1000ml capacity, compared to the 700ml capacity of an Edwards RV-3. With a larger oil reservoir, these CRV pro series pumps have a greater ability to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion.These Welch CRV pro 4 pumps are offered in 115V, 60Hz & 230V, 60Hz operation models. The CRV pro 8 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 5.6 CFM and has KF 16 inlet and exhaust flanges. This pump comes with a quart of Welch DirecTorr Hydrocarbon Oil. The CRV pro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual for the Welch CRV is available by downloading the .pdf below at Downloads.

Welch CRVpro8 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump, 2-Stage 220-240VAC. Welch Part Number: 3082-00. The Welch CRVpro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRVpro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRVpro 8 pumps have a 1000ml capacity, compared to the 700ml capacity of an Edwards RV-3. With a larger oil reservoir, these CRVpro series pumps have a greater ability to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion.These Welch CRVpro 8 pumps are offered in 115V, 60Hz & 230V, 60Hz operation models. The CRVpro 8 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 5.6 CFM and has KF 16 inlet and exhaust flanges. This pump comes with a quart of Welch DirecTorr Hydrocarbon Oil. The CRVpro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual for the Welch CRV is available by downloading the .pdf below at Downloads.

Welch CRVpro16 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump, 1-Stage 115 VAC. Welch Part Number: 3161-01. The Welch CRVpro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRVpro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRV pro 16 pumps have a 2400 ml capacity. With a larger oil reservoir, these CRVpro series pumps have a greater ability to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion. These Welch CRVpro16 pumps are offered in 115V, 60Hz operation model. The CRVpro16 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 12.8 CFM and has KF 25 inlet and exhaust flanges. The CRVpro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual and brochure for the Welch CRVpro Pumps is available by downloading the .pdf’s to the side.

Welch CRVpro24 Direct Drive Dual Stage Mechanical Rotary Vane Vacuum Pump with hose barb adapter, 2-Stage, 115 VAC. Welch Part Number: 3241-01. The Welch CRVpro series direct drive rotary vane pumps offer superior reliability, long service life and can handle a variety of low vacuum needs. The Welch CRVpro series pumps are factory prepared with oil cases coated with PTFE (Polytetrafluoroethylene) commonly know as Teflon®. The outer surface of the pumping module also has a black oxide surface. Both coatings act to slow down metal corrosion.The CRV series have the unique feature of a much larger oil capacity than pumps of similar size. The CRVpro24 pumps have a 2200 ml capacity. With a larger oil reservoir, these CRV pro series pumps have a greater ability to dilute aggressive chemicals, ensuring a longer service life for the pump. These pumps also run 10°C cooler than similar pumps from having a chemically resistant coating in the oil case and on the pump module, further protecting them from corrosion. These Welch CRVpro24 pumps are offered in 115V, 60Hz, 60Hz operation models. The CRVpro24 can achieve an ultimate pressure of 5x10¯4 Mbar (4x10¯4 Torr) with a 18 CFM and has KF 25 inlet and exhaust flanges. The CRVpro series have accessories available to adapt to a variety of applications, including use with refrigeration, dehydration, brake line evacuation, epoxy degassing, sterilization, mass spectrometry, vacuum ovens, lasers, backing combinations, thin film coating, vacuum distillation, freeze drying, space research and other vacuum processes. An operation manual and brochure for the Welch CRVPro Pumps is available by downloading the .pdf.