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Product Gallery Welch 1397, DuoSeal Unmounted Pump - Chemtech Scientific Incorporated

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Welch 1397 DuoSeal Unmounted Pump

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Welch 1397 DUOSEAL Vacuum Pump – 23 CFM (Unmounted)

The Welch 1397 DUOSEAL is a high-capacity, belt-drive rotary vane vacuum pump designed for applications requiring strong pumping speed and deep vacuum. With 23 CFM (650 L/min) free air displacement, it is well-suited for large laboratory systems, industrial processes, and pilot plant operations.

Welch DuoSeal 1397 is an unmounted pump and a component to a complete belt driven vacuum pump. The Welch DuoSeal Unmounted Pump 1397 requires a base, motor and belt to generate vacuum. This product can only be used as a drop-in replacement for the pump component of a complete vacuum pump.

Key Features

  • 23 CFM (650 L/min) pumping speed
  • Ultimate vacuum down to 1 × 10⁻⁴ Torr
  • Large oil reservoir for cooler operation and extended oil life
  • Durable DUOSEAL rotary vane design
  • Easy maintenance and service access

Ideal Applications

  • Large vacuum ovens and drying chambers
  • Pilot plant and scale-up operations
  • Industrial vacuum processes
  • Vacuum distillation
  • Laboratory systems requiring high flow

Need technical advice or compatibility confirmation? Email support@chemtechsci.com or call (484) 424-9415.

 

Pumping Speed

17.7 CFM (500 l/min)

Max. Vacuum

0.001 torr

Oil Capacity

1.25 qt(1.2 l)

Tubing Needed

1-5/8(41)

Exhaust / Intake threads

1.75-20

Pump RPM

400

Welch 1397 DUOSEAL Vacuum Pump – 23 CFM (Unmounted)

The Welch 1397 DUOSEAL is a high-capacity, belt-drive rotary vane vacuum pump designed for applications requiring strong pumping speed and deep vacuum. With 23 CFM (650 L/min) free air displacement, it is well-suited for large laboratory systems, industrial processes, and pilot plant operations.

Welch DuoSeal 1397 is an unmounted pump and a component to a complete belt driven vacuum pump. The Welch DuoSeal Unmounted Pump 1397 requires a base, motor and belt to generate vacuum. This product can only be used as a drop-in replacement for the pump component of a complete vacuum pump.

Key Features

  • 23 CFM (650 L/min) pumping speed
  • Ultimate vacuum down to 1 × 10⁻⁴ Torr
  • Large oil reservoir for cooler operation and extended oil life
  • Durable DUOSEAL rotary vane design
  • Easy maintenance and service access

Ideal Applications

  • Large vacuum ovens and drying chambers
  • Pilot plant and scale-up operations
  • Industrial vacuum processes
  • Vacuum distillation
  • Laboratory systems requiring high flow

Need technical advice or compatibility confirmation? Email support@chemtechsci.com or call (484) 424-9415.

 

Pumping Speed

17.7 CFM (500 l/min)

Max. Vacuum

0.001 torr

Oil Capacity

1.25 qt(1.2 l)

Tubing Needed

1-5/8(41)

Exhaust / Intake threads

1.75-20

Pump RPM

400

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