DUOSEAL

Tentang DUOSEAL

DUOSEAL is a brand of high vacuum rotary vane pumps and vacuum pump oils, manufactured by Welch Vacuum Technology, Inc., a company with a history dating back to the early 20th century. The brand is recognized for its robust, oil-sealed rotary vane pump designs used in laboratory, industrial, and scientific applications requiring reliable vacuum generation. DUOSEAL pumps are typically specified for applications such as freeze drying, vacuum distillation, electron microscopy, mass spectrometry, and general laboratory vacuum systems. The product line includes single-stage and two-stage rotary vane pumps with free air displacement ratings ranging from 0.9 cfm to 17.7 cfm, driven by motors from 0.33 hp to 2.5 hp, available in single-phase 115V AC or 115/230V AC configurations. Inlet connections are offered in NPT and NW (ISO-KF) flange standards, allowing integration with various vacuum systems. The pumps are constructed with cast-iron bodies and precision-machined rotors and vanes, designed for continuous operation and long service life. DUOSEAL vacuum pump oils are formulated specifically for these pumps, available in 1-quart bottles, to maintain optimal sealing and lubrication. 3G Electric supplies DUOSEAL pumps and oils globally, offering multiple SKUs to match specific displacement, motor voltage, and connection requirements. The catalog includes models such as the 1397B-01 (1.25 hp, 17.7 cfm), 1376B-01 (2.5 hp, 10.6 cfm), 1402B-01 (2.25 hp, 5.6 cfm), and 1400B-01 (0.33 hp, 0.9 cfm), each with defined specifications for motor phase, voltage, and port type. For procurement specialists and maintenance managers, DUOSEAL pumps provide a standardized platform for vacuum processes where oil-sealed rotary vane technology is specified. The availability of replacement oils and the interchangeability of components across models simplify inventory management. 3G Electric supports the line with logistics for global shipment, enabling engineers to source these pumps and consumables without geographic constraints.

Aplikasi Umum

• Laboratory freeze drying — DUOSEAL 1402B-01 vacuum pump (2.25 hp, 5.6 cfm) for solvent removal under vacuum
• Vacuum distillation systems — DUOSEAL 1376B-01 pump (2.5 hp, 10.6 cfm) for low-pressure separation processes
• Electron microscopy sample preparation — DUOSEAL 1400B-01 pump (0.33 hp, 0.9 cfm) for chamber evacuation
• Mass spectrometry rough pumping — DUOSEAL 1397B-01 pump (1.25 hp, 17.7 cfm) for backing turbo pumps
• Vacuum oven operation — DUOSEAL 1402B-01 pump for maintaining vacuum in drying ovens
• General laboratory vacuum manifold — DUOSEAL 1400B-01 pump with NW flange for quick-connect setups