Why Use INEX U-Tube Systems?

• Higher Heat Flux - Metal-alloy tubes are typically designed to radiate at 55 BTU/hr/in² (25 KW/m²), but INEX tubes excel at much higher temperatures to 2450°F (1340°C) providing twice the heat flux output of 110 BTU/hr/in² (50 KW/m²). Because INEX tubes can be fired so much hotter, they provide faster furnace ramp-up & recovery, reduced cycle time and tighter temperature control. With this in mind, consider a smaller INEX composite tube to replace a larger metal-alloy tube for both increased performance and purchase savings.
• Longer Tube Life - Conventional metal-alloy tubes frequently fail due to creep, carburization, thermal shock, melt-through and oxidation. INEX composite radiant tubes eliminate these problems and out-live all other types. Lower your operating expense by reducing furnace downtime, tube replacement, and labor. 
• Decreased Cycle Time - Higher radiant output means faster recovery to operating temperature than conventional metal-alloy tubes, insuring maximum furnace throughput and productivity.

U-Tube Brochure

General INEX U-Tube Installation Drawings

HORIZONTAL Mounting

U-Tube 4.5 Inch OD Horizontal

U-Tube 6 Inch OD Horizontal

VERTICAL Mounting

U-Tube 4.5 Inch OD Vertical

U-Tube 6 Inch OD Vertical

Standard U-Tube Sizes