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Home/Rebuilt Vacuum Pumps/Rotary Vane/Welch Pumps/Welch 1402 Vacuum Pump

Welch 1402 Vacuum Pump

Rebuilt Welch 1402 Rotary Vane Vacuum Pump

The Welch 1402 vacuum pump is a two-stage belt-drive rotary vane pump with a free air displacement of 5.6 cfm and a ultimate total pressure of 1 x 10-4 Torr.  DuoSeal 1402 pumps are designed to be rugged and durable.

It is a small mechanical vacuum pump with excellent vapor handling capability. DuoSeal Welch 1402 pumps have a high contamination tolerance due to their large oil reservoirs which dilute contaminants. A low pump RPM reduces friction and provides a long service life for these pumps. It is reliable and commonly used in vacuum processes, degassing, freeze drying, vacuum furnace applications.  

REBUILT OR REMANUFACTURED Welch 1400 VACUUM PUMPS:

All rebuild prices include disassembly, inspection & cleaning. Replacement of seals, gasket, springs, o-rings & valves. Other parts replaced as required upon approval for an extra charge. Pumps are then tested & painted.

Specifications

Welch 1402 VACUUM PUMP SPECIFICATIONS:

Vacuum Pump Model1402
Nominal Displacementcfm5.6
Nominal Displacementl/m160
Stage2
TypeBelt-Drive
Motor HPhp1/2
Oil Capacityltr2.1
Inlet1″ NPT
Outlet1″ NPT
Weightlbs132
Purchase Price  (Rebuilt)$$1,550
Rebuild Price$$750
Features

Welch 1402 ROTARY VANE PUMP FEATURES:

  • Dual Stage Pump
  • Belt Drive
  • Excellent Vapor Handling Capability
  • High contamination tolerance
  • Rugged design, long service life
Applications

Welch 1402 PUMP APPLICATIONS:

  • Vacuum Furnace Evacuation
  • Vacuum Manifolds
  • Vacuum Oven
  • Backing Turbomolecular pumps
  • Rotary Evaporator
  • High Boiling Point Evaporations
  • Refrigeration system evacuation
  • Freeze Drying
  • Research and Development
  • Vacuum Processes
  • Vacuum Distillation
  • Glove Boxes
  • General Laboratory
Dimensions

Welch 1402 DUOSEAL VACUUM PUMP Dimensions:

Welch 1402 vacuum pump dimensions aka DuoSeal 1402 pump dimensions.
Dimensional Drawings Welch 1402 DuoSeal
Compare

WELCH DUOSEAL ROTARY VANE VACUUM PUMPS:

Vacuum Pump Model   1400 1405 1402
Nominal Displacement cfm .9 3.2 5.6
Nominal Displacement l/m 25 91 160
Stage   2 2 2
Motor HP hp 1/3 1/2 1/2
Oil Capacity l .59 2.1 2.1
Weight lbs 58 112 122
Purchase Price  (rebuilt) $ $1,100 $1,200 $1,550
Rebuild Price $ $650 $725 $750
Pumping Speed Curve

WELCH DUOSEAL 1402 PUMPING SPEED CURVES:

Welch DuoSeal 1402 pumping speed curves.
Manual

Welch 1402 User Manual

Learn more about HVS leak testing services and helium leak detector rentals.

Welch Rotary Vane Pumps & Parts:

  • Welch 1400 Vacuum Pump

    Rebuilt Welch 1400 Rotary Vane Vacuum Pump
  • Welch 1405 Vacuum Pump

    Rebuilt Welch 1405 Rotary Vane Vacuum Pump
  • Welch 1376 Vacuum Pump

    Rebuilt Welch 1376 Rotary Vane Vacuum Pump
  • Welch Vacuum Pump Parts

    Welch rotary vane vacuum pumps logo.

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Learn more about our leak testing services and helium leak detector rentals:

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