Straight-Through Indirect Air Heater (IAH-ST)
Compact Indirect Air Heating for Industrial Processes
Compact yet powerful, Stelter & Brinck’s Straight-Through Indirect Fired Air Heater (IAH-ST) is a compact indirect air heating configuration designed for applications requiring separation of combustion gases from the process air stream.
The straight-through configuration allows process air to travel through the unit from left to right or right to left. Heat exchangers can be positioned on either the positive or negative side of the process, providing flexibility for plant layout and installation.
Available configurations include:
- Recirculating or non-recirculating operation
- Horizontal or vertical layouts
- Low-emissions burner options
- Process supply blowers and transition ductwork
- PLC or DCS control interface compatibility
- Secondary heat recovery systems
Common applications include drying and chemical and pharmaceutical production where separation of combustion gases from the process air stream is required.
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FEATURES
Stelter & Brinck’s IAH-ST Straight-Through Indirect Fired Air Heaters are designed and manufactured for industrial indirect process air heating applications. Configurations are based on specified application requirements and operating conditions.
Standard Features Include:
- Fully welded, all-stainless-steel heat exchanger
- High-grade process-contact materials available in stainless steel 304, 316 or 321
- Prewired control enclosure with DCS or remote operator station interface capability
- Integral control panel featuring annunciator, FM-approved high-temperature limits, air pressure switches, PID digital temperature control, flame safety relay, main power disconnect, control transformer and hot-side blower motor starters
- UL 508A certification available upon request
- Built to specified construction requirements and applicable plant specifications
- AWS D1.1, D1.3 and D1.6 certified welding
- Insulated and skinned combustion chamber designed to support operator safety and energy efficiency
- Factory tested and tuned by Stelter & Brinck's Quality Control Team before shipment
- Field service support including on-site start-up, preventive maintenance and parts support
CUSTOM DESIGN OPTIONS:
Stelter & Brinck can configure IAH-ST systems based on specified process requirements and operating conditions.
Available options include:
- Recirculating or non-recirculating configurations
- Horizontal or vertical layouts
- Low-emissions burner options
- PLC or DCS control interface compatibility
- Process supply blowers and transition ductwork
- Secondary heat recovery systems for combustion air preheat
ADVANTAGES OF A STELTER & BRINCK STRAIGHT-THROUGH INDIRECTLY FIRED AIR HEATER:
With more than 100 years of experience in process heating and industrial combustion, the Stelter & Brinck IAH-ST provides a compact configuration for indirect process air heating applications.
- Single-point fuel and power connections to simplify installation
- Thermal efficiencies up to 90%
- High turndown capability for responsive process temperature control
- Configurations for high- or low-process-air temperatures
- PID digital temperature control
- Compatible with natural gas or propane fuel
- Flame observation port and pressure test taps for inspection and service
- Designed for service access and maintenance
- Separation of combustion gases from the process air stream
