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

Shipping Notes
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Exchange/Return Notes
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SKU: 49541068776

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Verified Purchase
Just a person
Bozeman, US
★★★★★ 5
Very nice suit, but too small
Size: X-Large, Color: Black
It's a very nice suit - but too small. Will purchase again in a larger size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
N
Verified Purchase
Nick c.
Alexandria, US
★★★★★ 4
Good quality and cannot beat the value you get with a suit
Size: Medium, Color: Black
I recently purchased the WEEN CHARM Men's Suits Slim Fit for my son's homecoming and I must say, I am impressed with the quality and fit of this suit. Firstly, the material used in this suit is of exceptional quality. The fabric feels soft and smooth, and it has a nice weight to it which gives it a luxurious feel. The suit doesn't feel cheap or flimsy at all. The slim fit design is impeccable. It hugs my son's body in all the right places, giving him a sharp and stylish look. The suit is tailored to perfection and accentuates his physique beautifully. I also appreciate the attention to detail in the craftsmanship. The stitching is neat and sturdy, and there were no loose threads or flaws that I could find. The suit looks like it was made with care and precision. Additionally, the suit was surprisingly comfortable. My son didn't complain about any discomfort or restriction of movement throughout the evening, which is always a plus. The only reason I haven't given it a five-star rating is because the suit did require some minor alterations for a perfect fit. Nonetheless, this is a small inconvenience considering the overall satisfaction we had with this purchase. In conclusion, I highly recommend the WEEN CHARM Men's Suits Slim Fit. It is a stylish, well-made suit that will definitely make a statement at any formal event. My son looked dashing in it and received many compliments.
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Reviewed in the United States on July 8, 2023
E
Verified Purchase
E. Shaddock
Houston, US
★★★★★ 5
Fit like a glove and soft to the touch.
Size: Small, Color: Black
My son loved the suit. It was not itchy. The fabric was soft. He did not like the vest but it is because he normally wears baggy clothes. He did not want a slim fit suit but he ended feeling good in it. For the price you can't miss. He is 140 lbs and is 5'7". We used the sizing chart for reference and bought size small. The length and waist of the pants were perfect and the arms were just right.
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Reviewed in the United States on April 11, 2026
C
Verified Purchase
Cool Kid
Massapequa, US
★★★★★ 5
Awesome value! Great fit!
Size: XX-Large, Color: Black
Complete men's suit for under $70!!! Crazy!! My husband is thrilled with this suit! We ordered a XXXL but it was a bit baggy. Ordered the double XL and it was perfect! Husband is 6'1, waist 38, broad chested. No adjustments or hemming needed! Love it!
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Reviewed in the United States on April 4, 2026
R
Verified Purchase
Richard C Gelina
Grantham, US
★★★★★ 5
I felt cute
Gorgeous. Little snug for the jacket for recommended size but I got 6 months to lose some stomach to fit better LOL I don't blame the jacket.
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Reviewed in the United States on April 7, 2026

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