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

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Exchange/Return Notes
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SKU: 49541068776

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Product Reviews
A
Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 1
Not the least bit durable
Color: Blue
This is not durable! My pup had a hole in it in 5 minutes and a leg torn off in 3 days. He is not an aggressive chewer even....typically we have to replace toys because the squeaker has died, never because he tore it out!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
J
Verified Purchase
Jeanette Duquaine
Omaha, US
★★★★★ 5
FUN TO PICK UP IN HIS MOUTH
Color: Blue
mY LITTLE DOG ABSOLUTELY LOVES THIS TOY
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
K
Verified Purchase
KandiS1424
Bozeman, US
★★★★★ 2
Adorable but not Durable
Color: Blue
While this toy was super adorable and our 1 year old puppy loved it. The colors were bright and vivid, and it made fun wrinkling sounds he absolutely loved. However we were lucky if it lasted 20 minutes. Within minutes the crinkle paper was coming out and it basically fell apart, and he's not a destructive pup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
M
Verified Purchase
Maureen
Louisville, US
★★★★★ 5
Softness
Color: Pink
The pups love it. It’s soft and squishy and crinkly. Pretty colors too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
C
Verified Purchase
Cindy Knox
Lowell, US
★★★★★ 5
Great toy
My dog absolutely loves this toy! Pretty durable, good for moderate to light aggression.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 29, 2025

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