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DUOSEAL

DUOSEAL is a brand of high-vacuum rotary vane pumps and vacuum pump oils. The line is known for direct-drive, single-phase pumps that produce free air displacements from 0.9 cfm to 17.7 cfm, with motor ratings from 0.33 hp to 2.5 hp. These pumps are used in laboratory, packaging, refrigeration service, and light industrial vacuum applications where consistent vacuum levels are required. 3G Electric supplies DUOSEAL pumps and oils globally, with logistics support for international orders.

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About DUOSEAL

DUOSEAL is a brand of high-vacuum rotary vane pumps and vacuum pump oils. The line is known for direct-drive, single-phase pumps that produce free air displacements from 0.9 cfm to 17.7 cfm, with motor ratings from 0.33 hp to 2.5 hp. These pumps are used in laboratory, packaging, refrigeration service, and light industrial vacuum applications where consistent vacuum levels are required. 3G Electric supplies DUOSEAL pumps and oils globally, with logistics support for international orders.

The DUOSEAL pump range includes models such as the 1400B-01 (0.9 cfm, 115V AC), 1397B-01 (17.7 cfm, 115/230V AC), 1376B-01 (10.6 cfm, 115/230V AC), and 1402B-01 (5.6 cfm, 115/230V AC). All are single-phase, direct-drive rotary vane pumps with NPT and NW connections. They are designed for continuous duty and are typically used for evacuation, freeze drying, vacuum furnaces, and other processes requiring a clean, oil-sealed vacuum. The pumps are shipped with a charge of DUOSEAL vacuum pump oil, and replacement oil is available in 1-quart bottles (part number 1407K-11).

3G Electric supports the DUOSEAL line by stocking these pumps and oils and providing global shipping. For technical buyers, the key specifications are the free air displacement, motor horsepower, voltage, and connection type. The pumps operate on standard single-phase power, which simplifies installation in laboratory and light industrial settings. The oil is formulated for rotary vane pumps and is used to lubricate and seal the pump mechanism. When ordering, confirm the model number and voltage to match the available power supply. 3G Electric can provide quotes and lead times for international destinations.

Common Applications

  • Laboratory vacuum systems — DUOSEAL 1400B-01 (0.9 cfm) for small-scale evacuation and filtration
  • Refrigeration service — DUOSEAL 1402B-01 (5.6 cfm) for evacuating refrigerant lines and components
  • Vacuum furnaces — DUOSEAL 1397B-01 (17.7 cfm) for high-capacity evacuation in heat treatment
  • Freeze drying — DUOSEAL 1376B-01 (10.6 cfm) for lyophilization and solvent removal
  • Packaging — DUOSEAL 1402B-01 (5.6 cfm) for vacuum packaging and degassing
  • General industrial vacuum — DUOSEAL 1397B-01 (17.7 cfm) for central vacuum systems and process evacuation

Frequently asked questions

Common questions about DUOSEAL from 3G Electric.

What is the difference between the DUOSEAL 1400B-01 and the 1397B-01?

The DUOSEAL 1400B-01 is a 0.33 hp pump with a free air displacement of 0.9 cfm and operates on 115V AC single-phase power. The 1397B-01 is a 1.25 hp pump with a free air displacement of 17.7 cfm and operates on 115/230V AC single-phase power. Both are direct-drive rotary vane pumps with NPT and NW connections. The 1400B-01 is suited for smaller vacuum systems, while the 1397B-01 is used where higher pumping speed is required.

What type of oil is used in DUOSEAL rotary vane pumps?

DUOSEAL rotary vane pumps use DUOSEAL vacuum pump oil, available in 1-quart bottles under part number 1407K-11. This oil is formulated for lubricating and sealing the pump mechanism. It is recommended to use the specified oil to maintain pump performance and service life. The oil is typically changed according to the manufacturer's maintenance schedule or when contamination is suspected.

Can DUOSEAL pumps be used for refrigeration service?

Yes, DUOSEAL rotary vane pumps are commonly used in refrigeration service for evacuating refrigerant lines and systems. Models such as the 1402B-01 (5.6 cfm) and 1376B-01 (10.6 cfm) provide sufficient displacement for typical service work. The pumps are oil-sealed and require the correct vacuum pump oil. Always follow proper refrigerant handling procedures and use the pump within its rated specifications.

What is the maximum vacuum level achievable with a DUOSEAL 1376B-01?

The DUOSEAL 1376B-01 is a two-stage rotary vane pump capable of achieving a ultimate vacuum in the range of 10^-4 Torr (0.1 micron) when properly maintained and using the correct oil. Actual achievable vacuum depends on system conditions, oil condition, and connections. For specific applications, refer to the pump's performance curve or consult the manufacturer's technical data.

Are DUOSEAL pumps available with different voltage options?

DUOSEAL rotary vane pumps are available in several voltage configurations. For example, the 1400B-01 operates on 115V AC single-phase, while the 1397B-01, 1376B-01, and 1402B-01 operate on 115/230V AC single-phase. The voltage must be specified when ordering. 3G Electric can provide details on available voltage options for each model.

Does 3G Electric supply DUOSEAL products?

Yes — 3G Electric (S) Pte. Ltd. supplies DUOSEAL products. We stock the DUOSEAL catalog and supply genuine factory-original products with full manufacturer warranty and technical support.