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

Sale price$1336.50 Regular price$1485.00
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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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4.2 ★★★★★
Based on 87 reviews
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Product Reviews
C
Verified Purchase
Carrie Wheat
San Leandro, US
★★★★★ 5
As advertised
Color: Green Orange
Did exactly what they needed. Made the remote slightly larger so it is easier to use and less slippery.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
W
Verified Purchase
Woodlandsman
Omaha, US
★★★★★ 4
Pretty good...
Color: Red
Red color is kind of an orange-red. Hm... Came with some kind of dust on it. Once cleaned off it's not as slippery, yet still slips on just fine. Protects the remote - and your hands from the remote's hard edges. The raised bumps on the back make it easier to pickup - without digging your fingernails into cushions or carpets as you "scoop."
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
B
Verified Purchase
Brian Daniel
Chelsea, US
★★★★★ 5
Good product
Color: Red
Fits well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
M
Verified Purchase
Miabear
Dallas, US
★★★★★ 5
Very handy to have to spot them easily
Color: Dark Blue
Love the cases, have a different color on each rooms tv. Hopefully it will protect from a drop as that is what prompted me to buy it. We cracked the screen on our last remote and they are expensive to replace. Good price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
N
Verified Purchase
Nancy , NY
Natrona Heights, US
★★★★★ 5
Very nice!
This is very pretty and holds a lot of assorted goodies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 26, 2025

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