Across International Welch 2042 DryFast 1.2 CFM 2 Torr 2-Head Diaphragm Chemical Duty Pump

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Sale price$2,949.41 USD

Welch DryFast PTFE Diaphragm Vacuum Pumps enable precise vacuum control for organic evaporations with exclusive Advanced Vapor Management (AVM). Oil-Free, portable, chemical resistant, 2 head diaphragm design simplifies maintenance. Choose from seven dry PTFE vacuum pump models with flows up to 40 L / min and adjustable vacuum down to 0.75 Torr. Economical DryFastTM vacuum pumps are perfect for tough lab applications.

Clean operation (oil free), low cost of ownership, highest reliability – these are just a few benefits that customers can appreciate when they use a diaphragm pump for laboratory or industrial applications. With a broad range of diaphragm pumps – ultimate vacuum from 75 to 1 mbar and peak flow rates up to 138 l/min – Welch offers specific pump families and models for a variety of uses.

Diaphragm pumps work completely without oil which has several advantages for the user: Less maintenance compared to other technologies saves time and money Dry vacuum allows cleaner workplace and environment Uncontaminated pumping of gases results in cleaner samples and no risk of oil back-streaming


Chemical Duty Diaphragm Pump

•Chemical resistant. •Constructed with corrosion resistant PTFE and perfluoro plastic materials. •Oil-free. •Built in vacuum controllers. •CSA certification. •Available in 115V/60Hz. •Free air displacement @60Hz: 1.2 cfm (35 L/min) •Ultimate pressure: 2


Free three feet 3/8" white premium food-grade silicone vacuum tubing ($19.99 value) included.










Model 2042
Free Air Displacement, lpm 1.2 (35)
Ult. Vac. Pressure, torr (mbar) 2
Number heads/Stages
Motor Horsepower, HP (watts)  1/5 (150)
Adjustable Vac/Gas Ballast
Tubing Needed, I.D., in (mm)  1/4 (7)
Intake(Exhaust) Thread NPT M14 (1/8)
Weight lbs.(kg)
21.25 (9.6)
Overall Dimensions,
LxWxH in.(cm
Ship Weight, lbs (kg)
25 (11.3)
Shipping Carton Dimensions,
LxWxH in.(cm)
Wired for 115V, 60Hz, 1Ph, Agency 2042B-01
Wired for 230V, 50/60Hz, 1Ph, Agency 2042C-02
Standard Packages
Standard package


 Part description


Part image

 Welch 2042 chemical-resistant oil-free diaphragm pump
1 pc


 White premium food-grade silicone vacuum hose
3 ft

 Power Cord with Plug 1 pc

 User's manual
1 pc

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