Welch Vacuum Pump

For rebuild/repair of Welch small 4-head Chemical Duty Dry Membrane Vacuum Pumps, including Models MPC201T and MPC1010.  Contains 4 membranes, 8 valves, and affiliated O-Rings

…pump like the CRVpro to get deeper vacuum and higher flow. High Vacuum to 10 - 5 torr Use with high vacuum and Schlenk lines Employs air cooled diffusion pump Easy Attachment to backing pump Welch ProBoost is an air-cooled gas jet pump (commonly called a diffusion pump). The…

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…

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

…& G) with CSA/UL Mark Portable Suggested Applications Vacuum Filtration Vacuum Oven Welch corrosion-resistant diaphragm pumps are driven by explosion proof motor. The aluminum pump head is PTFE coated and the diaphragm is covered by a PTFE liner to separate chemical…

…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…

…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…

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…

…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…

…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…

…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.

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.

…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…

…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…

BTPro40 Botanicals Chemical Duty Dry Vacuum Pumps

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…

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…

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…

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…

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…

…within pump Internal surface protection on pump internals and PTFE coating on oil case slows chemical attack within pump. Gas ballast uses either outside air or dry inert gas to reduce condensable vapors from getting entrained in pump oil. Up to 10 dB quieter than competitive pumps …

…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.

…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…

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.

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…

…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…

… 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.

Chemical Duty High Vacuum Pump with integral oil filtration system. 5.6 CFM x 0.0004 torr, 230v/60hz, 1phase, CUL.

Advanced vacuum pressure gauge measures vacuum pressure in any system, with a range from 1-1,999 millitorr. This programmable instrument can measure leak rates, and vary units of pressure measurment to torr, millitorr, millibar, kPa, and many more. Runs on AA batteries but can run on AC power with…

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.

Exhaust Vane for Direct Drive Rotary Vane Pumps. Fits Thomas 7893R16, 1233K88, 7893R19, 1233K89, 7893R22, 1233K90. Fits Welch 8907A, 8907C-02, 8912A, 8912C-02, 8917A, 8917C-02. Phenolic material.