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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Product Reviews
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
Doggy potato chips, only chicken instead
Size: 3.5 Ounce (Pack of 1), Style: Chicken Chips
My dog goes crazy over these. They’re like doggy potato chips.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
S
Verified Purchase
Sylvia Barrett
Los Angeles, US
★★★★★ 3
Just chicken please
Size: 3.5 Ounce (Pack of 1), Style: Chicken Chips
not bad and pup likes pretty much. Love the size and fact "Chips". Package States "No artificial preservatives or additives" however, "Coconut Glycerin" added; personally would prefer this left out and "just"chicken.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
A
Verified Purchase
amy sluka
Lexington, US
★★★★★ 4
Dogs love them
Size: 3.5 Ounce (Pack of 1), Style: Chicken Chips
I would have gave 5 stars, but you have to tear/cut into small pieces because they are hard for dogs to chew and swallow. Will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2023
E
Verified Purchase
Emmie Ledsinger
Carnegie, US
★★★★★ 5
Dogs all beg for them!
Size: 3.5 Ounce (Pack of 1), Style: Chicken Chips
When I first received the package I was concerned about the small size of the crisps & the package itself. Not to worry! They are rather thick, and I had to half them for almost all of the dogs. They must be delicious because the dogs all gather around the corner of the treat table with the chicken chips! It takes them more than 2 seconds to chew, as well. I’m definitely reordering.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
L
Verified Purchase
Lynn Rose
Cuba, US
★★★★★ 5
Perfect for my picky dog who cannot do hard treats
Flavor Name: Bacon & Apple, Size: 5 Ounce (Pack of 1)
My dog loves these treats! Good ingredients, great size and value. And perfect for my picky little man. I also love that these don’t have a strong smell!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026

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