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Serpentine II

The Serpentine Triple Pass heaters are modular field replaceable air heater products commonly used in OEM applications. The popular air heater element consists of a versatile Serpentine coil that fits into a stainless steel “triple-pass” exchange housing and makes electrical connections through fittings pressed into the base. The housing uses the incoming air to cool the outer shell prior to passing through the heater element. This minimizes radiant heat loss and provides a safe to the touch product to minimize injury to operators who come in contact with the heater.  Air is commonly supplied by compressed air supply lines.

Product Specs

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Additional Info

  • Always ensure air is flowing before powering the heating element
  • Regulate the ramp up time using the potentiometer to control the AC voltage
  • Requires a temperature controller with 100ms cycle time
  • Temperatures are measured by 3/16” “K” T/C sensor Part #039272 mounted inside TC holder #040299
  • TC Holder mounted on exit of #F057088 Housing Assembly
  • Use of other sensor types and mounting locations can result in heater damage
  • Minimum airflow for accurate control is 60 SCFH
  • Maximum air temperature is 1500°F (815°C) *3.6kW, 2-Stage F060418
  • Operating above this curve voids the product warranty
  • CE, RoHS


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  • F029765 Length "A" 8.20" (208mm)
  • F029766 Length "A" 8.20" (208mm)
  • F029767 Length "A" 8.20" (208mm)
  • F060418 Length "A" 8.63" (219mm)
  • Serpentine II Diameter "B" 0.63" (16mm)
  • Serpentine II Housing "C" 10.0" (254mm)
  • Serpentine II Housing "D" 9.0" (229mm)
  • Serpentine II Housing Diameter "E" 1.6" (40mm)
  • Serpentine II Housing Diameter "F" 0.7" (18mm)
  • Serpentine II Housing Inlet Diameter "G" 3/8" NPT

Performance Curve

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