PFA Ultra-Pure In-Line Fluid Heaters

PFA Ultra-Pure In-Line Fluid Heaters

Heateflex’s series of Ultra-Pure In-Line Fluid Heaters are designed for use in industrial fluid heating applications such as those found in the semiconductor, solar, MEMS manufacturing, and other industries which require the most exacting standards of purity. Constructed of the highest quality fluoropolymer materials, these heaters are custom designed and built for use with aggressive acids and chemicals. The Heateflex PFA In-Line Heaters are ideal for recirculation and point-of-use applications and have small footprints, which results in less space and easy integration into current systems. These PFA in-line heaters are available in 1-12 kW and in worldwide voltages.

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  • Ultra-Pure Design
    • All PFA Wetted Surfaces
  • Fast Response
    • Low Watt Density; ≤ 4 watts/in2
  • Compact Design
    • Max power in smallest footprint
    • Heaters are typically 10″ to 30″ tall and range from 2″ to 6″ in diameter
  • Flexible Solutions
    • Multiple Designs with Numerous Options, Voltages, and Power Outputs available


  • Heater: Patented Heateflex® Coil
  • Wetted Surface: PFA
  • Sizes: 1kW to 12kW (Dependent on Customer Voltage)
  • Voltages: 200VAC to 480VAC 1ph and 3ph (Dependent on Wattage)
  • Temperature: Ambient to 180°C (203°F) (Depends on model)
  • Temperature Accuracy: ±0.1°C (Contingent on Customer’s Facilitation)
  • Flow: Max 10 GPM (37.8 LPM) (Depends on model)
  • Pressure: 60PSIG @ 95°C
  • Efficiency: > 99%
  • MTBF: 10.29 years

Safety Features:

  • Liquid Level Sensor
  • Ground
  • Over-Temperature Thermocouple
  • Process Thermocouple


ModelMaterial and HousingMax Temp.kWBenefits
LHX/LHYPTFE Molded Housing Style100°CLHX: 1-7kW; LHY: 10-12kWLow Cost for Low Temp Applications
LHM/LHNPFA Chemlock® Style120°CLHM: 1-6kW; LHN: 7-12kWCompact Size; 20″ for LHM and 30″ for LHN
LHRPFA Pipe Style120°C1-2kWSmallest Footprint for Low Flow Applications
LHKPFA Canister Style160°C1-10kWCompatible for Higher Temp. Applications; Small Height (16″)
HCPFA Pipe Style180°C1-10kWHighest Temp. Series and Zero O-Rings; No Threads in Wetted Surface
*Low VAC: 200-240 VAC, 3-Phase · High VAC: 380-480 VAC, 3-Phase


Microprocessor Based Temperature Controller in NEMA Rated External Switching Chassis


  • Thermal Cut-Off
  • Type K or other Thermocouples available
  • Fiber Optic Liquid Level Sensor
  • RTD Sensors
  • Flow Switch
  • Pressure Relief Valve
  • Heater in Enclosure
  • Heaters retrofitted for Customers current design

Contact Heateflex at (626) 599-8566 to learn more about other options.