Heated Tubing

The Watlow FREEFLEX heated tubing and flexible heater assembly provides a flexible heat-up and transport system for moving and maintaining the temperature of liquids and gases, and for applying uniform surface heat in space-constrained equipment. The heating element and sensor sit in direct contact with the surface being heated, giving efficient, responsive heating and close temperature control. A flexible, durable jacket lets the assembly flex, coil or bend around system components, so it can be routed through available space or retrofitted into existing systems without redesigning them.

Key Features

• Flexible heat-up and transport system — Eliminates the need for heated reservoir systems in many applications.
• Heating element directly contacts the surface — Provides fast, efficient, more responsive heating.
• Available in three configurations — A flexible design that lets tubing flex, coil or bend around system components; a pre-formed design that allows longer tube length in a smaller volume; and a molded design that provides a compact heating assembly for easy installation.
• Integral sensors — Optional thermocouple, thermistor or RTD sensors maintain close control of heater and fluid temperatures.
• Low voltage design — Promotes safety, typically less than 36V.
• Miniature sizing — Available down to 1/32 in. (0.8 mm) inside diameter for the tightest spaces.
• Convenient retrofit — Allows flexible routing around components of an existing control system.
• UL® recognition — Available on qualified designs by request.

Typical Applications

FREEFLEX is used across clinical (automated clinical analyzers, tissue processing equipment), analytical (sample preheating for LC and HPLC systems, breathalyzers, immuno assays), semiconductor processing (wafer drying equipment, DI water heating), printing (additive manufacturing/3D printing), general process (wax/paraffin processing, non-combustible gas heating), water purification, precision cleaning, aerospace and military applications.