Welch DuoSeal High-Vacuum Pump; 0.9 cfm/1x10(-4) Torr/115 V
SKU: 49541068776

Welch DuoSeal High-Vacuum Pump; 0.9 cfm/1x10(-4) Torr/115 V

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Description

Welch DuoSeal High-Vacuum Pump; 0.9 cfm/1x10(-4) Torr/115 VProduct Details High contamination tolerance Ultimate vacuum <0. 001 Torr Low RPM for long service life Welch 1400B 01 Owner's Manual Description The Welch 1400B 01 DuoSeal Vacuum Pump is a rugged and robust vacuum pump for applications requiring pressures < 1 Torr. The Welch vacuum pump 1400B 01 achieves < 0. 001 Torr with a pumping speed of 25 liters min (0. 9 CFM). Rugged oil seal pumps for a wide variety of vacuum needs, including Schlenk drying

Product Details

  • High contamination tolerance
  • Ultimate vacuum <0.001 Torr
  • Low RPM for long service life

Welch 1400B-01 Owner's Manual

Description

The Welch 1400B-01 DuoSeal Vacuum Pump is a rugged and robust vacuum pump for applications requiring pressures < 1 Torr. The Welch vacuum pump 1400B-01 achieves < 0.001 Torr with a pumping speed of 25 liters/min (0.9 CFM).

Rugged oil-seal pumps for a wide variety of vacuum needs, including Schlenk drying lines, freeze drying, degassing, concentrations, distillations, and more. Pulley drive enables low pump rpm operation – reduces friction, oil temperature, and oil degradation. Large oil reservoir minimizes contamination effects and extends maintenance intervals. Use of a cold trap is recommended to protect the pump and enhance vacuum levels.

Two stage, oil sealed vacuum pumps should not be operated continuously at pressures above 1 Torr. Operating this DUOSEAL pump at higher pressure will induce excessive oil spraying from the exhaust of the vacuum pump causing premature failure and void warranty.

Product Specifications

Model Number

WELCH-1400B-01

Applications

Vacuum Manifolds, (Schlenk Lines), High boiling point evaporations (to 195 deg. C), Glove boxes, General laboratory.

Type

Belt-Drive Vacuum Pump

Free Air Displacement @60Hz

0.9 CFM (25 l/min)

Ultimate Pressure

0.001 Torr

Pump RPM

580

Oil Capacity

0.62 qt (0.59 l)

Motor Horsepower (watts)

1/3hp (250W)

Adjustable Vac. / Gas Ballast

Yes

Tubing Needed

7/16" (11 mm)

Intake Thread NPT

3/4-20 straight thread

Exhaust Thread NPT

3/4-20 straight thread

Overall Dimensions LxWxH

17.8" x 9" x 12.6"

Wiring

115V, 60 hz

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Exchange/Return Notes
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SKU: 49541068776

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Verified Purchase
Scott O'Neal
Charlottesville, US
★★★★★ 5
Works perfect
Color: Grey
Very nice set. Has everything you will need to fix a flat the case is compact and well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
B
Verified Purchase
Brian Durand
West Palm Beach, US
★★★★★ 5
Perfect
Color: Grey
Perfect tire plug kit. Stores great under the seat. Hope I don’t need it but I have it if I do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
D
Verified Purchase
David G.
Draper, US
★★★★★ 5
Not left stranded anymore!
Color: Vivid Orange
I bought two of these tire repair kits to put one in each vehicle. I also bought two new jacks for each vehicle. Generally them jacks that come with your vehicle aren’t no good anyways. I had a flat tire way out in the country and I couldn’t get my tire off, with that cheap wrench. I couldn’t get the car jacked up anyways. left me stranded. Not anymore I got two new four-way lug wrenches two new jacks and a tire, patch kit, and two of them little air compressors that you hook up to your cigarette lighter..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
J
Verified Purchase
Jeffrey Peralta Bencosme
Chelsea, US
★★★★★ 5
Excelente kit, Se sienten premium
Color: Grey
Excelente kit de herramientas de pinches, Cada herramienta se siente de buena calidad a diferencia de otras marcas me gustó este Kit por su precio y hermoso estuche. Lo recomiendo 100%
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Reviewed in the United States on May 24, 2026
S
Verified Purchase
Steve n Judy
Whiting, US
★★★★★ 5
Amazon sell a fine selection of replacement fiberized rubber fiber plugs & cement. Read the reviews.
Color: Vivid Orange
This is the only kit you will ever need at roadside to plug a tire & be on your way. This kit has it all. I'm a retired long haul trucker. This is my preferred plug kit. I have stored one of these in all of my trucks & my wife's SUV. You could spend so much more for other plug kits. But this one works. The price reflects the quality of both the tools & all the other essentials you will ever need. I recommend you buy this one. The money you save can be used elsewhere. Note: Amazon sell a fine selection of replacement fiberized rubber plugs & rubber cement. This is where you don't want to skimp on cheap-O plugs elsewhere. These two items are the most important items in the entire system. Be prepared! Always read the reviews & know the sellers reputation before you purchase things. ///////////////
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026

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