Specialty Heaters

Watlow’s FLUENT® in-line fluid heater is a small, lightweight, high-performance heater that can replace both a traditional immersion type heater or a heater wrapped around a tube as part of a thermal system. Watlow’s FLUENT heater is designed as an integrated solution that replaces multiple components in a system. This heater design reduces overall system cost and complexity. Because of its high watt density, it offers ultra-fast response leading to higher system performance. Featuring Watlow’s patented layered heater technology, the heater makes use of its entire surface to produce heat, which...

Specialty Heaters FLUENT In-line Heaters Technical Information Specifications Optional internal baffle to promote turbulent flow and high efficiency Substrate tube material: 444 SS Fitting and baffle material: 316L SS Voltage up to 240V Amperage up to 15A per zone Resistance tolerance +10%, -5% Typical maximum watt densities • Air 150 W/in2 (23 W/cm2) • Water 450 W/in2 (70 W/cm2) Maximum pressure: 150psi (10.2 bar) Maximum temperature: 662°F (350°C) as measured by internal T/C • UL®/cUL® and CE Fast responding, high watt density layered heater circuit Low profile axial lead exit Application Orientation...

FLUENT In-line Heaters Technical Information Standard Product Offering: Base Heaters Volts How to Specify a Standard Product: • Select a base heater from the chart to the left. • Choose the desired inlet and outlet fittings from page 446. Note: Visit www.watlow.com/fluent for the latest list of standard designs and product information.

Specialty Heaters FLUENT In-line Heaters Technical Information Pressure Drop - Water - With Internal BaffleWater - With Baffle Pressure Drop 1000 Pressure-Drop (mbar) Flow (I/min.) Heater 4.25 in., Fitting 1/4 in. Pressure Drop - Water - Without Internal Baffle Heater internal temperature will vary based on flow rate, heater watt density and presence of the internal baffle, which increases turbulent flow. General guidelines for baffle consideration: • For flow rates below 1 l/min, baffle should always be used to prevent an over-temperature condition. • For flow rates over 1 l/min, removing the...

Watlow’s high performance ULTRAMIC® advanced ceramic heaters are designed for thermal applications that require optimal effectiveness of equipment and processes. Constructed with aluminum nitride (AIN), ULTRAMIC heaters’ thermally matched proprietary heating element provides maximum performance in challenging applications. AIN is especially suitable for applications that require a clean, non-contaminating heat source. Its excellent geometric stability ensures consistent part-to-part thermal contact during heating cycles. Watlow AIN heaters operate up to 400°C (752°F)® with an ultra-fast ramp...

Technical Data Mounting Guidelines • Temperature <200°C (392°F): bond with high-temperature epoxy adhesive • Clamp using single or multiple-point fasteners Optional Thermocouple • Bonded Type K thermocouple for <400°C (752°F) Specifications and Tolerances Surface Finish • Flatness: <0.05 mm (0.002 in.) • Parallelism: <0.05 mm (0.002 in.) • Surface roughness (Ra): <1.5 pm Dimensional Tolerance (length/width/diameter) • ± 1% of dimension (± 0.13 mm minimum) Electrical Properties • TCR: 0.0015/°C • Resistance tolerance: ±25% Intellectual Property • U.S. Patents 7,696,455, 7,832,616 and 8,242,416...

Extended .Capabujt^ Specialty HeatersExtended Capabilities for ULTRAMIC Advanced Ceramic Heaters Mounting Guidelines® • In addition to the options listed on the previous page, a screw hole can be provided on custom designs (recommend insulation buffer such as mica spacer) Optional Sensors • In addition to, or in place of the standard bonded thermocouple, a drilled hole or slot can be provided for installing an externally mounted sensor ® See www.watlow.com/ultramic for detailed mounting guide.

Specialty Heaters & Product Ordering Information Part Number ® 3 mm (0.12 in.) hole in center of heater ® 5 mm (0.19 in.) hole in center of heater See page 450 for lead exit details (full drawings and current list of standard designs available at www.watlow.com/ultramic) Configurations include: • Power lead wires with 305 mm (12 in.) of PTFE insulation • Bonded Type K thermocouple with 305 mm (12 in.) PTFE insulated lead wires Note: Maximum temperature is 400°C (752°F). Lead wires are rated to 205°C (401°F). If ceramic beads are required, please contact your Watlow representative for a quote.

The Watlow 430 stainless steel thick film conduction heater is ideal for many applications where fast response and uniformity are essential. A clamp-on, thick film heater provides the best possible combination of heat transfer, thermal efficiency, temperature response and uniformity in a low profile package. This high-performance heater can be used in areas where space is limited or where conventional heaters cannot be used due to limited voltage and wattage combinations. Thick film conduction heaters provide a low profile in a variety of shapes including two-dimensional circular and rectangular...

Specialty Heaters Thick Film Conduction Heaters Technical Information Construction Mating Part Heater (Trace) Max. length • 24 in. (610 mm) Max. voltage • 240VAC Max. amperage • 25A Mica Insulator Terminations • Stud terminals Clamping Plate Thick film conduction heaters, designed for clamp-on applications, are supplied as a multi-part assembly: heater, mica insulator, clamping plate and mounting hardware. Features • Holes/slots up to 15% of area Clamping Plate 2.6 mm (12 Ga.) Mica Insulator 0.040 in. (1 mm) Heater 1.9 mm (14 Ga.) To install, mount the heater to the surface being heated and assemble...

Extended Capabilities for Thick Film Conduction Heaters Specifications Min. Length • 2.25 in. (57 mm) Max. Length • 24 in. (610 mm) Max. Voltage • 240VAC Max. Amperage • 25A Terminations • Stud terminals , soldered leads 480°F (250°C), rubber molded flexible leads 480°F (250°C) Substrate • 10 to 18 ga. 430 SS, Alumina Features • Holes/slots up to 15% of area Sensor • Bolted ring-style thermocouple