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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★★★★★ 5
Easy-to-Install Air Filter Kit for Civic
This engine and cabin air filter kit is a great choice for keeping your Civic running smoothly. Installation was straightforward, everything fit perfectly with no modifications needed, and the filters feel solid and well-made. After replacing them, the cabin air feels noticeably fresher, and the engine seems to breathe more easily. It’s convenient to replace both the engine and cabin filters at the same time, and the kit includes everything you need for a hassle-free swap. Overall, a reliable and practical kit for anyone looking to maintain their vehicle’s performance and improve interior air quality.
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Reviewed in the United States on January 29, 2026
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MiKeM
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★★★★★ 5
Good value, fit 2023 CRV 1.5L
These filters arrived wrapped in plastic in a cardboard box, shipped in a standard Amazon box. Initial quality seems very good. I've previously used store brand filters and oem filters in our 2023 CRV 1.5L, and these look comparable. They fit fine. If you have not changed your filters, there are good youtube videos that show how to do it, the CRV is well supported and pretty straightforward without having to buy a bunch of special tools. If you don't want to spend $100 at the dealership, these are a good value and only take about 5-10 minutes total to change once you have done it a few times. First time out, give yourself 30 minutes and be patient!
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Reviewed in the United States on January 7, 2026
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"Dave From Jersey"
Belleville, US
★★★★★ 5
Fits Perfectly. Can't beat the price. Don't Hesitate....
Actually this filter combo fits my customers car perfect. Some after market filters you have to finagle a little to make them fit, however this engine air filter and cabin filter fit perfect...Great deal for both filters.
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Reviewed in the United States on January 14, 2026
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J Lit
West Palm Beach, US
★★★★★ 5
They fit perfectly //// appear equal or better quality
They fit perfectly and appear to be equal or better quality than the OEM filters.
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As good as original equipment at half the price, perfect fit, easy to install
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