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High Capacity Diaphragm Pumps

Complete dry pump for high vacuum applications
  • Unique flat diaphragm design reduces wear and tear for longer service life
  • Vacuum levels as low as 1.5 Torr
  • Very quiet operation at 44 dB(A)
Provides high flow rates for increased laboratory efficiency. Long service intervals reduce downtime. Choose a chemical-resistant pump if solvents or corrosive gases will come into contact with the pump. Gas ballast, which allows purging of any condensed gases in the pump, is standard on all models. Protect your pump with an inlet filter for particulates or use a cold trap for condensable vapor.
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11 variations of this product are available.

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11 PRODUCT OPTIONS
Compareitem specifications
Free-Air Capacity (CFM) Max Vacuum (torr) Wetted Parts
Availability Pricing
Ilmvac 4000312-03 Vacuum pump, 2.6 CFM, 1.5 torr, 3 stage, General purpose, 115 VAC SKU 7850061 WW-78500-61 Mfr # 411743-01
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2.6 1.5 Aluminum, Viton®, Polyamide, PVC
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Ilmvac 4001542-03 Vacuum pump, 7.1 CFM, 6 torr, 2 stage, General purpose, 115 VAC SKU 7850067 WW-78500-67 Mfr # 411782-01
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7.1 3 Aluminum, Viton®, Polyamide, PVC
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Ilmvac 4000312 Vacuum pump, 2.6 CFM, 1.5 torr, 3 stage, General purpose, 230 VAC SKU 7850072 WW-78500-72 Mfr # 411743
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2.6 1.5 Aluminum, Viton®, Polyamide, PVC
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Ilmvac 4001522 Vacuum pump, 4.9 CFM, 1.5 torr, 3 stage, General purpose, 230 VAC SKU 7850073 WW-78500-73 Mfr # 411783
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4.9 1.5 Aluminum, Viton®, Polyamide, PVC
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Ilmvac 4001542 Vacuum pump, 7.1 CFM, 6 torr, 2 stage, General purpose,230 VAC SKU 7850077 WW-78500-77 Mfr # 411782
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7.1 3 Aluminum, Viton®, Polyamide, PVC
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Vacuum pump, 2.6 CFM, 1.5 torr, 3 stage, Chemical duty, 115 VAC WW-78500-81 Mfr # 412743-01
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2.6 1.5 PTFE, Kalrez®, ETFE
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Welch 2062B-01 Chemical Duty Diaphragm Pump, 4.2 CFM, 1.5 torr, 3 Stage, 115 VAC WW-78500-83 Mfr # 2062B-01
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4.2 1.5 PTFE, and other Flourinated Polymers
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Vacuum pump, 7.1 CFM, 6 torr, 2 stage, Chemical duty, 115 VAC 78500-87 WW-78500-87 Mfr # 412782-01
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7.1 3 PTFE, Kalrez®, ETFE
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Welch 2052C-02 Chemical Duty Diaphragm Pump, 2.3 CFM, 1.5 torr, 230 VAC WW-78500-91 Mfr # 2052C-02
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2 1.5 PTFE, and other Flourinated Plastics
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Vacuum pump, 4.9 CFM, 1.5 torr, 3 stage, Chemical duty, 230 VAC Sku7850093 WW-78500-93 Mfr # 412783
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4.9 1.5 PTFE, Kalrez®, ETFE
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Ilmvac 4001552 Vacuum pump, 7.1 CFM, 6 torr, 2 stage, Chemical duty, 230 VAC WW-78500-97 Mfr # 2064C-02
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7.1 3 PTFE, Kalrez®, ETFE
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Showing 1- 11 of 11

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