Welch Vacuum Pump

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Welch Vacuum Pump
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  • DuoSeal® High Vacuum Pumps

    Welch

    …protect the pump and enhance vacuum levels. Do not operate continuously at pressures greater than 10 torr. DuoSeal two stage pumps provide deep vacuum (1 X 10-4 torr) at pumping speeds ranging from 25 to 650 L/min (0.9 to 23 CFM). DuoSeal single stage pumps provide economical vacuum to 0.015…

  • Model 2019 vacuum pump

    Welch

    Affordable Model 2019 vacuum pump is durable and chemcial resistant. Use Model 2019 for vacuum filtration, desiccation, degassing, and other mid-range vacuum applications. Free air flow 37L/min; Maximum vacuum 24" Hg. Pump can also be used to pressurize up to 18 PSIG. Comes standard with…

  • Duoseal Explosion Proof Vacuum Pumps

    Welch

    Specifications are identical to the standard 1400B models. Explosion proof units are specialized to prevent sparking etc. that could ignite a flammable gas mixture in the room. These pumps have to be hard-wired in by an electrician. Please contact customer service for technical requirements.

  • ChemStar, Mounted Pump 230V, 60HZ, 1PH

    Welch

    …dilutes contaminants ChemStar belt-driven Vacuum Pump is designed to tolerate harsh chemical contamination. Vital pump parts are corrosion resistant. The large oil reservoir with PTFE surfaces dilutes contamination and the low pump rotational speed lessens friction to reduce operating…

  • Utility Vacuum Pumps

    Welch

    Standard Duty Handy Welch pump is perfect for basic lab vacuum operations. Dry or aqueous vapors only, portable, vacuum or pressure, 115V

  • High Capacity PTFE Diaphragm Vacuum Pumps

    Welch

    …solvent / acid resistance Use these durable dry diaphragm pumps to provide high flow, deep vacuum for your application. Welch Model 2052 pumps resist corrosive and solvent fumes to provide consistent vacuum levels. Quiet vacuum, low maintenance, and long life - friendly to your budget and…

  • Standard Duty Dry Oilless Vacuum Pumps

    Welch

    …Adjustable Vacuum / Pressure Use these affordable oil-free pumps to provide convenient vacuum throughout the lab. Welch WOB-L piston pumps provide adjustable vacuum for filtration, SPE, vacuum ovens, and more. These pumps are an efficient alternative to water aspirators. Select vacuum range…

  • Self-Cleaning Dry Vacuum System

    Welch

    …at shut-down to expell unwanted residue, extending the diaphragm life. Use with rotary evaporators up to 5 L capacity. A cold trap, such as Welch 1420H-14 (7893R90) is recommended when using this pump with centrifugal concentrators. Also recommended for use with vacuum ovens up to 28 L capacity.

  • Model 1640 Vacuum Controller

    Welch

    …1640 Vacuum Controller regulates you’re the vacuum level of your application - precisely, conveniently, and without using precious bench space. Vacuum level can be regulated from 2 Torr to atmospheric pressure, ±1 Torr. Use Model 1640 for fine control of rotary evaporation, vacuum ovens…

  • DryFast Diaphragm Vacuum Pumps

    Welch

    …operate and maintain Use Welch ® DryFast ® diaphragm vacuum pumps for tough applications requiring chemical resistance. DryFast’s Advanced Vapor Management controls vacuum for precise distillations using handy adjustment knob. Oil-free pumps are quiet and durable with PTFE…

  • Chemstar Vacuum Pumps

    Welch

    …cooler running and longer service life. ChemStar pumps rotate at speeds less than 580 RPM, compared with over 1700 RPM of direct-drive vacuum pumps. Dry Nitrogen Purge both degasses and cools the pump oil reducing the corrosion rate in the pump. Accessories (available on special order): Protective…

  • Direct Drive Vacuum Pumps

    Welch

    Compact, convenient Deep vacuum Use these Welch 2-stage direct drive pumps for a wide range of laboratory applications to provide deep vacuum down to 1 x 10-4 torr. Common lab processes include freeze drying, vacuum oven drying, glove box vacuum, centrifugal concentrator operation, and…

  • Vacuum Pump Accessories

    Welch

    1169A95: Inlet Separator Intake separator separates liquid phase aerosols from gas stream, reducing chemical contaminants in pump oil. 1169A97: Outlet Oil Mist Separator Outlet oil separator removes oil particles from exhaust stream, minimizing oil loss to atmosphere. 1169A98: Oil…

  • DryFast Collegiate PTFE Vacuum Pumps

    Welch

    …concentrators, & vacuum ovens. Achieve precise vacuum control for organic evaporations with Welch's Advanced Vapor Management (AVM). Choose from six dry PTFE vacuum pump models with flows up to 70 L / min and adjustable vacuum down to 2 Torr. Economical DryFastTM vacuum pumps are perfect for…

  • KF25/NW25 Flange to 3/8" Hose Barb Adapter

    Across International

    One piece stainless steel KF25/NW25 to 3/8" hose barb adapter for secure vacuum connection. Compatible with the Ai 2.5, 7.2 cfm and Welch 2.3 cfm vacuum pumps, offered by Across International.,/p>

  • Duoseal, Pump w/o Motor

    Welch

    High contamination tolerance Ultimate vacuum <0.001 Torr Low RPM for long service life DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing…

  • Wob-l Pressure/Vacuum Dry Pump, 230V 60Hz 1Ph

    Welch

  • DUOSEAL Unmounted Pump

    Welch

    High contamination tolerance Ultimate vacuum <0.001 Torr Low RPM for long service life DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing…

  • CRVpro Direct Drive Rotary Vane Vacuum Pumps

    Welch

    The Welch CRVpro family of direct drive rotary vane pumps is the industry leader within the direct drive vacuum pump category. Service intervals are extended from three core features: Cool running . By running cooler relative to competitive direct drive pumps, agressive and corrosive…

  • GEM Direct Drive Gear Pump

    Welch

    Rugged GEM direct drive gear pumps provide versatile vacuum for applications requiring a broad range of vacuum level operating conditions. GEM pumps can operate continuously in the pressure range that rotary vane pumps can not: 10 torr up to atmospheric pressure; oil recycler 1416B is recommended…

  • Aspiration/Pressure Transfer Stations

    Welch

    …feature pressure capacity to 33 psig (3.3 x 105 pascal). 1233K57 has a pumping capacity of 11 lpm and vacuum to 21.3 Hg (292 mbar). Power requirement is 115V, 60 Hz. 1233K58 has a pumping capacity of 9.2 lpm and vacuum to 21.3 Hg (292 mbar). Power requirement is 230V, 50 Hz. Unit is supplied…

  • ChemStar, 115V 60Hz 1Ph Fomblinized

    Welch

    …dilutes contaminants ChemStar belt-driven Vacuum Pump is designed to tolerate harsh chemical contamination. Vital pump parts are corrosion resistant. The large oil reservoir with PTFE surfaces dilutes contamination and the low pump rotational speed lessens friction to reduce operating…

  • DirecTorr Gold Pump Oil

    Welch

    …gas and vapor applications regardless of the pump used. Oil is triple-distilled, severely hydrotreated oil designed to resist breakdown at the higher RPMs and operating temperatures of direct-drive vacuum pumps. Premium Oil enables Welch direct-drive vacuum pumps to maintain the highest performance.

  • Accessories For Duo Seal Pumps

    Welch

    DUOSEAL pump oil with low vapor pressure, ideal viscosity is recommended for use with DUOSEAL or any other belt-driven vacuum pump. No additives or inhibitors. Exhaust filters trap oil mist and reduce noise. Replaceable elements reduce maintenance costs.

  • DUOSEAL Unmounted Pump

    Welch

    High contamination tolerance Ultimate vacuum <0.001 Torr Low RPM for long service life DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing…

  • Exhaust Filters

    Welch

    Filters trap exhaust oil mist and reduce pump noise. They are supplied with housing and replaceable filter.

  • Direct Drive Pump Oil

    HYVAC

    …suitable for use in most high vacuum pumps including Welch, Precision, Leybold, Alcatel, Edwards and of course, HyVac Pumps. HyVac Direct Drive oil should be employed where direct drive pumps are used such as the Leybold-Heraeus, Edwards, and Alcatel vacuum pumps. High oxidation resistance…

  • WOB-L Pressure/Vacuum Dry Pump, 230V 60HZ 1PH

    Welch

  • Thermocouple Vacuum Gage

    Welch

    Portable, lightweight thermocouple vacuum gauge with recorder output (0-10VDC) for monitoring vacuum pressure. Single station model 1515 has a range of 0-5000 mtorr. Supplied with one permanently attached probe cable and one gauge tube.

  • ChemStar Dry - Oil-Free Deep Vacuum System

    Welch

    … Schlenk line drying manifolds Vacuum ovens Freeze dryers up to 6 L Centrifugal concentrators Many other deep vacuum applications Save the time, expense, and hassle of oil-seal vacuum pumping with ChemStar Dry – a cutting edge product from Welch Vacuum Technology.

  • VACUUM REGULATOR KIT, GEM PUMP

    Welch

  • Portable 12 VDC Motor Vacuum Pumps

    Welch

    GEMINI® Dry Vacuum Pumps - Powerful Go-Anywhere Vacuum. Use in lab or field - Portable, Quiet. GEMINI pumps are DC powered – plug in to your vehicle or standard 115V outlet. Perfect for sampling, filtration, degassing, and other mid-vacuum applications. Advanced chemical resistance enables use with…

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