Instruction manuals

Watlow Fluid Delivery Heaters

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Watlow® miniature heated polymeric tubing assemblies provide a flexible heat-up and transport system for moving fluids within diameters as small as 1/32 in. (0.8 mm).
   Max. Operating Typical Max. Temperatures Watt Densities Fluid Delivery Heaters Sheath Materials °F °C W/in 2  W/cm 2 PageFREEFLEX  ® Polymeric 212 100 10 1.5  385Syringe Polycarbonate laminate 185 85 2 0.3  388 383  WATLOW  ® Fluid Delivery Heaters F l   ui   d D el  i  v er  yH e a t   er  s  Fluid Delivery Heaters Extended Capabilities For FREEFLEX  ®  Heaters 385  WATLOW  ® Watlow’s miniature heated polymeric tubing assemblies provide a flexible heat-up and transport system for moving fluids within diameters as small as 1  /  32  in. (0.8 mm). The FREEFLEX  ®  heater heats fluids up to 212°F (100°C) and maintains temperature during transfer from a reservoir to a point of use. In some applications, the tubing can actually serve as the reservoir for limited volumes of fluid, helping to reduce start-up times. For higher temperatures, contact your Watlow representative. Watlow’s innovative design places the heating element and sensor directly in contact with the perimeter of the tubing to produce efficient, responsive heating and temperature control of the tube contents. The element is evenly wound to ensure reliable, close contact for uniform heating along a portion or the entire length of the line.  A flexible, durable jacket covers the wound element to let the tubing flex and move in a dynamic system. This allows for fluid delivery to multiple locations from a single supply source. In stationary applications, the FREEFLEX heated tubing is conveniently routed through available space or around other system components. This saves space and provides an uncomplicated retrofit in existing systems. The FREEFLEX heater’s efficient heating element design can incorporate an optional thermocouple, thermistor or resistance temperature detector (RTD) temperature sensor into the thermal package. Users can select leads to exit from one or both ends of the assembly. Typical standard PTFE tubing is available in 1  /  32 , 1  /  16 , 1  /  8  or 3  /  16  in. (0.8, 1.6, 3.2, 4.8 mm) inside diameters. Contact your Watlow representative for other sizes and materials. Typical Applications ã Medical: automated clinical analyzers, tissue processing equipmentã  Analytical:  sample preheating for LC and HPLC systems, breathalyzersã Semiconductor processing: wafer drying equipment, DI water heatingã Printing: ink jet printers, rapid prototyping systems, photo lithographyã General process: wax/paraffin processing and non-combustible gas heatingã Water purification systems ã Precision cleaning equipment ã  Aerospace ã Military  Features and Benefits Flexible heat-up and transport system  ã Eliminates the need for heated reservoir systems in many applications Direct contact between the heating element and tubing  ã Provides fast, efficient, highly responsive heating  Available in three configurations  ã FREEFLEX design allows tubing to flex, coil or bend around system components, enabling convenient retrofitsã Pre-formed design allows a longer tube length in a smaller volumeã Molded design provides a compact heating assembly for easy installation Integral sensors  ã Maintain close control of heater and fluid temperatures Low voltage design  ã Ensures safety Miniature sizes as small as 1  /  32  in. (0.8 mm) inside diameter  ã Heats and transports fluids within tiny spaces Convenient retrofit  ã Allows for routing flexible tubing around system components and using existing control system UL ®  recognition  ã Available on qualified designs by request   E    X    T  E  N  D  E  D   C   A   P  A   B  I  L  I   T   Y  386  WATLOW  ® Fluid Delivery Heaters Extended Capabilities For FREEFLEX Heaters Technical Data   W/ft W/m O.D. Temperature ° C (  ° F) (Ambient)  0 0 70 (21) 5 1.5 140 (60) 10 3.0 210 (99) 15 4.6 265 (129) 20 6.1 310 (154) 25 7.6 340 (171) O.D. Temperature vs. Watts/Meter     O .   D .   T  e  m  p  e  r  a   t  u  r  e   (   ˚   F   ) 350300250200150100500051015202530 O.D. Temperature vs. Watts/Foot 177149121936638101.  O.D.T  em p er  a t   ur  e (  ˚   C )   O.D. Temperature vs. Watts/Unit Length Dry Tube - No Flow Water Temperature Rise/Foot vs. Flow Rate vs. Watt Density (  ⁄  in. (1.6 mm) I.D. Tube)Flow Rate of Water (mL/Minute)    W  a   t  e  r   T  e  m  p  e  r  a   t  u  r  e   R   i  s  e    (   ˚   F   /   F  o  o   t   ) 908070605040302010010203040506070809010016414612810991735536180 W a t   er T  em p er  a t   ur  eRi   s e  (  ˚   C /  M e t   er  )   50.037.525.012.5W/ft1641238241W/m Water Temperature Rise ° F/Foot Flow Rate (mL/minute)W/ft 10 30 50 100 50.0 82 29 19 1037.5 64 22 14 725.0 41 16 10 512.5 22 8 5 3 Water Temperature Rise ° C/Meter Flow Rate (mL/minute) W/m 10 30 50 100 164 149 52 35 18 123 116 40 26 13 82 75 29 18 9 41 40 15 9 5 Water Temperature Rise/Length Versus Flow Rate Versus Watt Density FREEFLEX Outside Diameter Temperature Versus Watts/Length   E    X    T  E  N  D  E  D   C   A   P  A   B  I  L  I   T   Y  387  WATLOW  ® Fluid Delivery Heaters Extended Capabilities For FREEFLEX Heaters Typical Application Requirements When requesting a quote please specify:ã Fluid Typeã Inlet Temperatureã Outlet Temperatureã Flow Rateã Voltage  - Typically less than 36V ã Watts/ft  - See chart on previous page for typical values ã Maximum Allowable Outside Surface Temperatureã Tube Size  ã 1  /  32  in. (0.8 mm) I.D. x 1  /  16  in. (1.6 mm) O.D. ã 1  /  16  in. (1.6 mm) I.D. x 1  /  8  in. (3.2 mm) O.D. ã 1  /  8  in. (3.2 mm) I.D. x 3  /  16  in. (4.8 mm) O.D. ã 3  /  16   in. (4.8 mm) I.D. x 1  /  4   in. (6 mm) O.D. ã Other (specify size) ã Tube Material  ã PTFE standard ã Silicone rubber ã Others upon request ã Tube Length  - 12 to 120 in. (305 to 3048 mm) typical ã Total ã Heated ã Unheated (specify) ã Tube Fittings  ã No fittings (1 in. [25 mm] bare tubing each end) ã Other (specify) ã Tube Flexing  ã Static (to route around components in system) ã Dynamic (subject to more continuous flexing) ã Occasional, frequent or continuous Note:  Min. recommended flexing radius ã 1  /  32  in. (0.8 mm) I.D. x 1  /  16  in. (1.6 mm) O.D. PTFE 1 in. (25 mm) ã 1  /  16  in. (1.6 mm) I.D. x 1  /  8  in. (3.2 mm) O.D. PTFE 1 1  /  2  in. (38 mm) ã 1  /  8  in. (3.2 mm) I.D. x 3  /  16  in. (4.8 mm) O.D. PTFE 2 in. (51 mm) ã 3  /  16  in. (4.8 mm) I.D. x 1  /  4  in. (6 mm) O.D. PTFE 3 in. (76 mm) ã Heater Leads  ã One at each end ã Both at one end ã Standard lead insulation (UL ®  Style 1180 CSA white PTFE) ã Other insulation (specify) Heater Lead Length  ã Standard 12 in. (305 mm) w/customer end stripped/tinned 1  /  2  in. (13 mm) ã Other (specify) Heater Lead Exit Direction  ã Inboard/outboard Temperature Sensor  ã Thermocouple (#30 AWG PFA - Type J) ã Thermistor (specify) 10K  Ω   at 72°F (25°C) standard ã Other temperature sensors size/types (specify) ã Sense heater element or tube temperature Sensor Lead Exit Direction  ã Inboard/outboard Temperature Sensor Lead Length  ã 12 in. (305 mm) ã Other (specify)  {  { Heated CenterOutboardOutboardInboardInboardEach EndLead Direction1 in. (25 mm)Bare Tube Typ. ⁄  in. (15.9 mm)No Heat Typ.  Lead OrientationTypical FREEFLEX Layout   Power LeadsFluid Flow DirectionInlet Typ. Sensor PlacementOutlet  Lead Location  Power Leads atEnd of Heater Power Leads Exit From Body of HeaterInsetOutset (Standard)D in.  Sensor Location/Mounting Description  InletOutletSense Tube(Tube Contact in Non-Heated Area)Sense Jacket(External to Jacket;Separate Boot)Sense Heater(Under Jacket, BetweenElements in Heated Area)S in.   E    X    T  E  N  D  E  D   C   A   P  A   B  I  L  I   T   Y
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