Finned Heaters

Process Air Heaters / Finned Heaters

Overview

Finstrip® elements are superior to open coil elements since the heating coil is completely encased in a metal sheath, minimizing a shock hazard due to accidental contact with the heater. The rigid metal sheath minimizes hot spots and electrical shorting, likely with open coil elements. Application temperatures to 565°F are typical using finned strip units. Fintube® elements have a finned tubular design that provides the same benefits as the finned strip heater and additional features, allowing for special bending configurations to provide higher concentrations of installed kW for a given area. The elements can be supplied with bulkhead threaded fittings, and may include optional hermetically sealed terminals, or extra heavy wall thickness for use in atmospheres containing hazardous fumes or gasses. Finned element diameters of 0.315" and 0.475" are standard, with high temperature aluminum painted steel sheath and furnace brazed fins being the most common materials. Stainless Steel or MONEL® sheath and fins are also available for corrosive environments.

Application Guidelines

  • Many Sheath and Fin Materials Available
  • 475 – 10,000 Watts
  • 120, 240 and 480 Volt
  • 750 to 900F Max. Sheath Temp.

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 Model Description
FTI-315 .315" Dia. Fintube®Heaters
FTI-475 Fintube Heaters
FTS-315 .315" Dia. Fintube®Heaters
FTS-475 Fintube Heaters
KSEF Preformed Circular Finstrip® Air Duct Heater
OTF Finstrip® Air Heater
SFTI-315 .315" Dia. Single End Fintube® Heaters
SFTI-475 Single End Fintube® Heaters
SFTS-315 .315" Dia. Single End Fintube® Heaters
SFTS-475 Single End Fintube® Heaters

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FTI-315

  • MONEL® Sheath (type FTI)
  • 500 - 6,200 Watts
  • 120, 240 and 480 Volt
  • 60 W/In²
  • 900°F Max. Sheath Temp.
  • Third-party certifications: cRUus, CSA

FTI-475

  • MONEL® Sheath
  • 120, 240 and 480 Volt
  • 60 W/In²
  • 900°F Max. Sheath Temp.
  • 475 - 10, 000 Watts (Dia. 0.475")
  • Third-party certifications: cRUus, CSA

FTS-315

  • Steel Sheath (type FTS)
  • 500 - 6,200 Watts
  • 120, 240 and 480 Volt
  • 60 W/In²
  • 750°F Max. Sheath Temp.
  • Third-party certifications: cRUus, CSA

FTS-475

  • Steel Sheath
  • 120, 240 and 480 Volt
  • 60 W/In²
  • 750°F Max. Sheath Temp.
  • 475 - 10, 000 Watts (Dia. 0.475")
  • Third-party certifications: cRUus, CSA

KSEF

  • Rust-Resisting Iron or MONEL® Sheath and Fins
  • 1,950 - 5,000 Watts
  • 120 and 240 Volt
  • Single Phase
  • Third-party certifications: UL Recognized, CSA

OTF

  • Rust-Resisting Iron or Chrome Steel Sheaths
  • 250 - 4,150 Watts
  • 120 and 240 Volt
  • Single Phase
  • 225 - 565°F Max. Work Temp.
  • 1-1/2" Strip with Fins 2" Wide
  • Third-party certifications: UL Recognized, CSA, DVE

SFTI-315

  • MONEL® Sheath (type SFTI)
  • 325 - 2,400 Watts
  • 120 and 240 Volt
  • 60 W/In²
  • 900°F Max. Sheath Temp.
  • Third-party certifications: UL Recognized, CSA

SFTI-475

  • MONEL® Sheath
  • 120, 240 and 480 Volt
  • 60 W/In²
  • 900°F Max. Sheath Temp.
  • 500 - 4,350 Watts (Dia. 0.475")
  • Third-party certifications: UL Recognized, CSA

SFTS-315

  • Steel Sheath (type SFTS)
  • 325 - 2,400 Watts
  • 120 and 240 Volt
  • 60 W/In²
  • 750°F Max. Sheath Temp.
  • Third-party certifications: UL Recognized, CSA

SFTS-475

  • Steel Sheath
  • 120, 240 and 480 Volt
  • 60 W/In²
  • 750°F Max. Sheath Temp.
  • 500 - 4,350 Watts (Dia. 0.475")
  • Third-party certifications: UL Recognized, CSA

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