Specialty Flanged Inline Heaters

High-temperature & high-pressure custom heater solutions for precise and durable performance.

Growing demand for efficient engines with reduced emissions and renewable forms of energy has increased the need for testing and research using high-temperature and high-pressure gas streams. Tutco SureHeat Specialty Flanged Inline (SFI) Heaters deliver safe, precise, and durable performance in a wide-range of extremely demanding high-temperature, high-pressure and low-flow applications.  SFI heaters are customized electric heating solutions manufactured to meet your specifications.

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Specialty Flanged Inline (SFI) inline heaters offer superior performance over conventional sheathed (“tubular” or “immersion”) style heaters because they are designed specifically for air and inert gas applications. Our proprietary SERPENTINE element facilitates a very high power density and compact overall design. SFI heaters can be as much as 8-12X smaller than equivalent tubular/immersion designs. With this advantage, installations become smaller, lighter, and more cost effective, with a faster heat-up and cool-down time. Whether for a research test stand, factory production line, or key component in a product or system, our Specialty Flanged Inline heater is the right heater solution for the job.

Combustion Research Fuel Cell R&D Pollution Control
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Electric process inline air heaters have ANSI standard pipe and flanges for heating high-pressure air or inert gases to 1400°F (760°C) and higher. Our patented Serpentine™ elements allow you to reach temperature within a minute vs much slower response times of tubular element designs. 

Flanged Inline Air heaters use internal "K" type thermocouple sensors to measure temperature as various points - on the element, inlet and outlet. These are part of SureHeat's Over Temperature Protection (OTP).  Coupled with an external limit control, OTP protects elements from premature failure if the airflow is reduced. It also protects against user error if the temperature is set to high. OTP allows our heaters to operate continously for 500 hours or longer. 

We understand the importance of producing custom heater solutions that deliver superior trouble-free performance.

Our engineers are not afraid to get their hands dirty. Each member of the team has hands-on expertise in every facet of the products they engineer.
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System Overview

A Tutco SureHeat Specialty Flanged Inline system consists of two major components. The heater itself (the vessel) and the control cabinet. 

The Heater

The heater vessel is ultra compact and robust. Vessel are available in 2.5" inner diameter with 18kw, 4” inner diameter with 36kW, 6” inner diameter with 72kW, 8” inner diameter available with either 192kW or 144kW,  or 10" pipe size with a 400kw power rating. It is supported by 2 ANSI standard 300lb flanges. The 4 K Type thermocouples are arranged around the tube  to insure compatibility with the OTP circuit in the control cabinet. 1-6 feed-thrus provide power to the coils. Custom vessels can be engineered to match your particular process. 

The Control Cabinet

Tutco provides custom control cabinets designed to work with our Serpentine elements and are guaranteed to work safely with our heater. Other control devices may not offer the responsiveness required to control Serpentine elements and are not guaranteed by Tutco SureHeat. Control cabinets include a phase-angle fired SCR power controller, PID-Based digitial temerature controller, and a 4 input OTP limit circuit. 

Heater Types

SFI-HP - High Pressure Models

High Pressure models are designed for use with high pressure air sources (> 50 psi), and are constructed of heating elements aligned with the airflow. SFI-HP models can produce air/gas temperatures to 1400°F or higher.

SFI-LP Low Pressure

Low Pressure models are designed for use with low pressure air sources like regenerative blowers (< 50 psi) and are constructed of low-restriction crossflow elements. SFI-LP models can produce air/gas temperatures to 1200°F.

Standard SFI Specs

  • Maximum Static Pressure 600psi (10bar)
  • Maximum Inlet Temperature 900°F (482°C)
  • Standard Outlet Temperatures 1500°F (815°C)
  • Temperature Control +/- 2°F.
  • Ramp time 50°C per second

Custom SFI Specs

  • Maximum Static Pressure 1100 PSI (207 Bar)
  • Maximum Inlet Temperature 900°F (482°C)
  • Standard Outlet Temperatures 1922°F (1050°C)
  • Temperature Control +/- 2°F.
  • Ramp time 100°C per second
  • Maximum Power Rating 1 MW and Higher
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