Duoseal Belt Drive High Vacuum Pumps

Rugged oil seal pumps for a wide variety of vacuum needs, including Schlenk drying lines, freeze drying, degassing, concentrations, distillations, and more. Pull drive enables low rpm operation by reducing friction, oil temperature, and oil degradation. Its large oil reservoir minimizes contamination effects and extends maintenance intervals.

Single stage pumps should not operate continuously above 50 torr. Two stage pumps should not operate continuously above 10 torr.

Welch is a recognized provider of duoseal belt drive high vacuum pumps, systems, and fittings for industrial, life sciences, and laboratory applications. We design, manufacture, and deliver products meeting the strictest requirements for mission-critical applications, and provide a comprehensive offering of products and great engineering capabilities to fit our customers’ needs.

Two-Stage Rugged Belt Drive Pump

Legendary longevity and exceptional durability with low pump rpm, cool running, longer service life. Large oil reservoir dilutes contaminants and high oil feed port draws cleanest oil. Suitable for toughest applications with low maintenance. Available in 115V/60Hz and 230V/60Hz. with free air displacement @60Hz: 0.9 cfm (25 L/min). Ultimate pressure: 1×10-4 Torr (1.3×10-4 mbar)

RefTec is a worldwide leader in supplying the HVAC industry with refrigerant recovery equipment, pumps and storage. RefTec has been selling Welch Pumps to many countries including India, Saudi Arabia and many more.

Applications

• Freeze drying
• Distillation
• Vacuum drying
• Neon tube manufacturing
• Degassing