Welch 1402N-01


Pump, High Vacuum

1402N-01 332172
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Pump, High Vacuum


ItemVacuum Pump
TypeHigh Range
Amps AC8.6/4.3
Displacement5.6 cfm
Ultimate Pressure Torr1x10-4
Intake Male SAE FlareISO - NW 25
Oil Capacity80 oz.
Motor TypeTEFC Continuous Duty
Valve TypeGas Ballast, That Inhibits Condensation of Water which can Lead to Corrosion
Application For Pumping Corrosive Gases
Includes Oil
Weight 128.000000


Vacuum Pump, High Range, 1/2 HP, Voltage 115/230, 8.6/4.3 Amps AC, 1 Phase, Displacement 5.6 cfm, Ultimate Pressure Torr 1x10-4, Intake Male SAE Flare ISO - NW 25, Length 19-5/16 In., Height 15-7/16 In., Width 14-1/8 In., Oil Capacity 80 oz., Motor Type TEFC Continuous Duty, Valve Type Gas Ballast, That Inhibits Condensation of Water which can Lead to Corrosion, Application For Pumping Corrosive Gases, Includes Oil

Corrosive Environment Pumps
  • 2-stage high-vacuum pumps are used for pumping corrosive gases to pressures below 1 Torr (1mm of Hg). Vane springs, valves, pressure tubes, and oil baffle are made of stainless steel. Oil case is PTFE lined. Nitrogen purge helps reduce corrosion. Gas ballast valve inhibits vapor condensation. Low rpm reduces friction wear. Large oil reservoir dilutes contaminants.

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