Circulation Heaters. WATROD and FIREBAR Circulation Heaters

Transcription

1 irculation Heaters WATROD and FIREAR irculation Heaters irculation heaters provide a ready-made means to install electric heating with a minimal amount of time and labor. This is accomplished by combining heating elements, vessel, insulation, terminal enclosure, mounting brackets and inlet and outlet connections into a complete assembly. Made from screw plug or ANSI flange heater assemblies mated with a pressure vessel (tank), circulation heaters are designed to heat forced-circulation air, gases or liquids. Ideal for either in-line or side-arm operations, these assemblies direct fluids past FIREAR or WATROD heating elements, to deliver fast response and even heat distribution. Watlow meets virtually all your circulation heater assembly needs with made-to-order units. These units can be made from a wide range of heating element sheath materials, wattages, vessel sizes and materials, pressure ratings, terminal enclosures and controls. Performance apabilities Watt densities to 120 W/in 2 (18.6 W/cm 2 ) Wattages to three megawatts UL and SA component recognition to 600VA Ratings to ANSI lass 600 pressure class Incoloy sheath temperatures to 1600 F (870 ) Passivated 316 stainless steel sheath temperatures to 1200 F (650 ) Steel sheath temperatures to 750 F (400 ) opper sheath temperatures to 350 F (175 ) Features and enefits atalog screw plug and flange part numbers Provides a wide selection of WATROD and FIREAR elements to meet specific application requirements Type Sizes (in.) Screw Plugs 1 1 4, ANSI flanges 3, 4, 5, 6, 8, 10, 12, 14 ANSI 16.5 lass 150 on 4 or 6 inch FIREAR element flanges and 3 to 14 inch WATROD element flanges Meets recognized agency standards Flange Assembly Threaded Pipe Outlet Jacket 1 in. (25 mm) Insulation Threaded Pipe Inlet Gasket Mounting Lugs Pressure Vessel FIREAR assemblies pack more wattage in a smaller heater bundle Replaces larger flanges with round tubular elements, with a smaller package ompacted MgO insulation filled elements Maximizes dielectric strength, heat transfer and life 1 inch (25 mm) thermal insulation rated to 750 F (400 ) Reduces heat loss from the vessel Heavy-guage steel jacket (shroud) Protects thermal insulation and heating vessel and comes with protective primer coating to 5 in. NPS assemblies will ship same day up to 5 pieces 4 in. NPS, 316 SS assemblies will ship next day up to 5 pieces 6 in. NPS assemblies will ship same day up to 2 pieces 6 in. NPS, 316 SS assemblies will ship next day up to 2 pieces 8 to 14 in. NPS assemblies will ship next day up to 2 pieces WATLOW 367

2 irculation Heaters WATROD and FIREAR irculation Heaters Features and enefits (ontinued) All catalog units rated to ANSI pressure lass 150 Provides pressure vessels (tanks) that are either carbon or 316 stainless steel Standard offering includes units rated for up to and including ANSI pressure class 600 (application review required) Provides pressure vessels (tanks) available in carbon steel, 304 or 316 stainless steel materials Includes schedule 40, standard and 80 pipe used in the pressure vessel construction atalog units provided with or ANSI lass 150 nozzle connection Makes installation easy. Inlet and outlet nozzle connections are threaded M on 8 in. (203 mm) and smaller tanks. lass 150 flanged connections on 10 in. (254 mm) and larger tanks Mounting lugs are welded onto the tank wall of all in. (64 mm) and larger units Provides mounting support General purpose (NEMA 1), moisture resistant (NEMA 4), moisture/explosion resistant (NEMA 4/7) enclosures available Offers easy access to terminal wiring Options Terminal Enclosures General purpose (NEMA 1) terminal enclosures, without thermostats, are supplied on all Watlow circulation heaters. Moisture and explosion resistant ratings are available to meet specific application needs. For screw plug terminal enclosures, refer to page 193. For flange terminal enclosures, refer to page 265. Stand-off Terminal Enclosures Stand-off terminal enclosures help protect terminal enclosures against excessive temperatures. For details, refer to page 261. ASME Pressure Vessel ode Welding Flange or screw plug assemblies can be provided with an ASME Section VIII, Div. I pressure vessel stamp upon request. ranch ircuits ranch circuits are designed for 48 amperes per circuit maximum. ontact your Watlow representative for circuit requirements other than those listed in the stock charts. 368 Flange mounting holes Straddles centerline to comply with industry standards UL and SA component recognition under file numbers E52951 and respectively Meets industry safety standards Typical Applications Water: Deionized Demineralized lean Potable Process Industrial water rinse tanks Hydraulic oil, crude, asphalt Lubricating oils at API specified watt densities Heat transfer oil Paraffin austic cleaners Nitrogen, hydrogen and other air/gas systems Superheating steam ertified Enclosures SA, ATEX or IEEx certified moisture and/or explosion resistant terminal enclosures protect wiring in hazardous gas environments. These terminal enclosures, covered under SA file number 61707, ATEX certificate # KEMA 07ATEX0172X or IEEx certificate # IEEx SA are available on WATROD flange heaters. For additional information, see page 611 and 612 or contact your Watlow representative. To order, specify SA or ATEX or IEEx certified enclosure, process temperature ( F), maximum ambient temperature, maximum working pressure of application (psig), media being heated and heater mounting orientation (horizontal or vertical) and flange size. Thermostats To provide process temperature control, Watlow offers optional single- and double-pole thermostats. Thermostats are typically mounted in the terminal enclosure. Optional side mounting on vessel also available. See Screw Plug Immersion Heaters, page 189 and Flange Immersion Heaters, on page 261 for details. WATLOW

3 irculation Heaters WATROD and FIREAR irculation Heaters Options (ontinued) affles Thermocouples To sense process or element sheath temperature, ASTM Type J or K thermocouples are available. See Screw Plug Immersion Heaters, page 190 and Flange Immersion Heaters, on page 261 for details. Process Thermocouple in Nozzle (Must specify which nozzle) Direction of Flow affles mounted on the heating element bundle enhance and/or modify liquid or gas flow for better heat transfer. For critical sheath temperature and low flow conditions, baffles may be required. ontact your Watlow representative for details. Sheath Materials The following sheath materials are available on WATROD and FIREAR heating elements: Standard Sheath Materials WATROD Incoloy 316 SS Steel opper FIREAR Incoloy Made-to-Order Sheath Materials WATROD FIREAR 304 SS Monel 304 stainless steel Wattages and Voltages Watlow routinely supplies circulation heaters with 120 to 480VA as well as wattages from 500 watts to one megawatt. If required, Watlow will configure circulation heaters with voltages and wattages outside these parameters. For more information on special voltage and wattage configurations, contact your Watlow representative. Ref T Ref. Ref. Dimension Tank Size Nozzle Size "A" For 10 in. (254 mm) and larger tanks contact your Watlow representative for dimension. WATLOW 369

4 irculation Heaters WATROD and FIREAR irculation Heaters Options (ontinued) Pressure Vessels All catalog pressure vessel (tank) materials consist of schedule 40 pipe and 150# class forged fittings and are made from one of the following materials: arbon steel 316 stainless steel All catalog pressure vessels (tanks) are steel unless otherwise noted. 316 stainless steel pressure vessels (tanks) are passivated on all wetted surfaces. Available from Assembly Stock on inch and 4 or 6 inch ANSI flange circulation heaters. Passivated Finish For critical applications, passivation will remove free iron from all wetted surfaces. ontact your Watlow representative for details. Gaskets Rubber, asbestos-free and spiral wound gaskets are available for all heater flange, and inlet and outlet flange sizes. Watlow recommends ordering spares in case replacement becomes necessary. To order, specify gasket type, flange size/rating and process operating temperature. For details on gasket materials and temperature ratings, see page 262. Inlet Nozzle onnections All inlet and outlet materials are compatible with the pressure vessel material and pressure class rating. Vessel sizes from to 8 inches are typically configured with M (Male National Pipe Thread) nozzles. Optional and flange sizes can be supplied to mate with existing piping. 10 inch and larger vessels are supplied with lass 150 inlet and outlet flanges. Optional lass 300 or lass 600 can be provided to mate with existing piping. To order, specify type, size and pressure class rating for both inlet and outlet nozzle/flange connections. Protective Steel Jacket (Shroud) To protect circulation heaters from weather or wash-down conditions, fully welded (weatherproof) or partially welded (standard) outer protective steel jackets are available. Standard steel, or made-to-order 304 or 316 stainless steel can be supplied. Jacket diameter is dependent upon thermal insulation thickness. To order, specify protective steel jacket, material type and weatherproof, if desired. 370 WATLOW

5 irculation Heaters WATROD and FIREAR irculation Heaters Technical Data Maximum Velocities The rate at which a gas or liquid flows through inlet and outlet pipes is critical to maintaining the desired output temperature. Pressure drop through the circulation heater must be considered to properly size blowers or pumps. The Maximum Velocity to Avoid Excessive Pressure Drop chart gives recommended maximum velocities, in feet per second and meters per second of gas or liquid being heated and nominal pipe size. Maximum Velocity to Avoid Excessive Pressure Drop Nominal Pipe Size Maximum Velocity Fluid in. ft/sec (m/sec) Gases All 200 (61.0) Liquid 4 and smaller 10 (3.0) Liquid (5.0) Liquid (6.0) Liquid (6.4) Liquid (7.0) Liquid (7.3) Vessel Orientation Guidelines orrectly orienting the heating vessel assures lower terminal enclosure temperatures and element immersion. Detailed instructions on vessel orientation are contained in the Installation and Maintenance Instructions that accompanies all circulation heaters. The following are guidelines for vessel orientation in liquid and gas heating applications. Liquids Orient circulation heater: Horizontally with inlet and outlet pipes pointing up Vertically with the terminal enclosure up and the inlet pipe on the bottom These orientations ensure the heating elements will be immersed at all times and help prevent premature failure. Air or Gases Orient circulation heater: Horizontally with the inlet nozzle closest to the terminal enclosure Vertically with terminal enclosure at the bottom of the tank. Use the nozzle nearest the bottom as the inlet connection If installation constraints do not allow mounting in accordance with these guidelines, contact your Watlow representative. WATLOW Application Hints Select the recommended heating element sheath material and watt density for the substance being heated. Use the Supplemental Applications hart on pages 599 to 604. If unable to determine the correct heating element type and material, contact your Watlow representative. Assure selecting proper vessel by considering the pressure or flow rate, process temperature and corrosiveness of the media being heated. If assistance with vessel selection is required, contact your Watlow representative. For maintenance/replacement procedures, retain an area twice the circulation heater s overall length to permit easy removal and inspection of screw plug or flange heater assemblies. hoose a FIREAR assembly when you require: A smaller package More kilowatts or lower watt density in an equally sized WATROD circulation tank. Minimize problems associated with low flow or low liquid level conditions with a low liquid level sensor and/or sheath high-limit control. Ensure wiring integrity by making sure terminal enclosure temperature does not exceed 400 F (205 ). Size power feeder wires in accordance with national electrical code guidelines and other applicable codes Protect against electrical shock by properly grounding the unit per NE requirements. One or more circulation heaters may be connected in series to achieve the desired total kilowatt or temperature output. 371

6 irculation Heaters EXTENDED APAILITY WATROD and FIREAR irculation Heaters Performance apabilities Up to 3000psi design pressure Features and enefits Offering includes units rated above ANSI pressure class 600 Pressure vessel tanks are available in H series stainless steel, Titanium, Incoloy, Alloy 600, hrome Moly, Monel, Duplex and 321 stainless steel Options Exotic Sheath Materials ontact your Watlow representative for details and availability. Pressure Vessels Made-to-order units can be made in a variety of materials, flange sizes and pressure classes. To order, specify pressure vessel (tank) size, material and pressure class. Ratings to ANSI class 2500 pressure class are available for high-pressure applications. High-Temperature Thermal Insulation To further minimize heat loss, the pressure vessel s standard one inch thermal insulation wrap may be replaced with thicker or higher temperature insulation. For more information, contact your Watlow representative. To order, specify insulation thickness, standard or high temperature insulation and temperature rating. Vessels may be supplied with a primer coating without insulation. To order, specify no insulation. Support Saddles To mate with an existing installation, customized support saddle(s) and/or mounting lugs are available. To order, specify mounting lugs or support saddles and supply a dimensional drawing. 372 WATLOW

7 irculation Heaters WATROD and FIREAR irculation Heaters Application: lean Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim inch Screw Plug Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (WATROD) in. Ref. 60 W/in / E15A6S RS 23 (11) (625.5) 15 (381) (79.4) (163.5 mm) E19A10S RS 29 (14) 24 2-opper 8 (625.5) 15 (381) (79.4) E23J10S RS 29 (14) (828.7) 23 (584) (79.4) ¾ in. (9.3 W/cm 2 ) E27J10S RS 31 (14) (828.7) 23 (584) (79.4) Inlet inch Screw Plug (FIREAR) 90 W/in DNF7R10S RS 26 (12) (625.5) 15 (381) (79.4) DNF7R11S RS 26 (12) 24 1-Incoloy 8 (625.5) 15 (381) (79.4) DNF11G10S RS 26 (12) (625.5) 15 (381) (79.4) (14 W/cm 2 ) DNF11G11S RS 26 (12) (625.5) 15 (381) (79.4) DNF16G3S RS 26 (12) (625.5) 15 (381) (79.4) Ref DNF16G5S RS 26 (12) (625.5) 15 (381) (79.4) 4 in DNF19G3S RS 30 (14) (828.7) 23 (584) (79.4) (102 mm) DNF19G5S RS 30 (14) (828.7) 23 (584) (79.4) DNF24L3S RS 31 (14) (828.7) 23 (584) (79.4) DNF24L5S RS 31 (14) (828.7) 23 (584) (79.4) 3¾ in DNF29R3S RS 43 (20) (1082.7) 32 (813) (111.1) (95 mm) DNF29R5S RS 43 (20) (1082.7) 32 (813) (111.1) DNF34R3S RS 44 (20) (1082.7) 32 (813) (111.1) inch Screw Plug DNF34R5S RS 44 (20) (1082.7) 32 (813) (111.1) DNF45G3S RS 69 (32) (1616.1) 53 (1346) (111.1) in. Ref. (182.6 mm) in DNF45G5S RS 69 (32) (1616.1) 53 (1346) (111.1) (284.2 mm) DNF55R5S RS 71 (33) (1616.1) 53 (1346) (111.1) 1 in. Inlet inch Screw Plug (WATROD) 60 W/in L714L3S RS 24 (11) (881) (572) 16 1 ARef. 2 (419) L714L5S RS 24 (11) 34 3-opper 4 (881) (572) (419) L717L3S RS 24 (11) (881) (572) (419) (9.3 W/cm 2 ) L717L5S RS 24 (11) (881) (572) (419) L720L3S RS 26 (12) (881) (572) (419) in L720L5S RS 26 (12) (881) (572) (419) (125.4 mm) Ref L7263S RS 27 (13) (1135) (1129) (673) L7265S RS 27 (13) (1135) (1129) UN 55 8 in. 2 (673) (142.9 mm) L731L3S RS 29 (14) (1135) (1129) (673) 31 8 in L731L5S RS 29 (14) (1135) (1129) (673) (79.4 mm) L7373S RS 30 (14) (1453) 45 (1143) 39 (991) 43 8 in L7375S RS 30 (14) (1453) 45 (1143) 39 (991) (111.1 mm) 4 Wired for higher voltage RS - Same day shipment up to 5 pieces 5 When steel vessel materials are used in this application, some rust may be present in the process media WATLOW 373

8 irculation Heaters WATROD and FIREAR irculation Heaters Application: lean Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (FIREAR) 90 W/in LNF153S RS 22 (10) (881) (572) (419) LNF155S RS 22 (10) 34 3-Incoloy 4 (881) (572) (419) LNF183S RS 23 (11) (881) (572) (419) (14 W/cm 2 ) LNF185S 3 RS 23 (11) (881) (572) (419) LNF235S RS 31 (14) (881) (572) (419) LNF28L5S RS 34 (16) (1135) (1129) (673) LNF33L5S RS 35 (16) (1135) (1129) (673) inch Screw Plug in. Ref. (182.6 mm) in. (284.2 mm) 1in. Inlet 3 inch lb ANSI Flange (WATROD) 60 W/in in FM715J10S RS 66 (30) (894) (573) (419) (125.4 mm) FM715J3S RS 66 (30) 35 3-opper 4 (894) (573) (419) FM715J11S RS 66 (30) (894) (573) (419) UN (9.3 W/cm 2 ) FM715J5S RS 66 (30) (894) (573) (419) FM721J10S RS 70 (32) (894) (573) (419) FM721J3S RS 70 (32) (894) (573) (419) 43 8 in FM721J11S RS 70 (32) (894) (573) (419) (111.1 mm) FM721J5S RS 70 (32) (894) (573) (419) 3 inch lb ANSI Flange FM727A3S RS 80 (37) (1148) (826) (673) FM727A11S RS 80 (37) (1148) (826) (673) FM727A5S RS 80 (37) (1148) (826) (673) FM732J3S RS 96 (44) (1148) (826) (673) FM732J11S RS 96 (44) (1148) (826) (673) FM732J5S RS 96 (44) (1148) (826) 26 1 in. Ref. 2 (673) (195.3 mm) FM738A3S RS 98 (45) (1465) 45 (1143) 39 (991) 1 in FM738A11S RS 98 (45) (1465) 45 (1143) 39 (991) Inlet ARef. & Outlet FM738A5S RS 98 (45) (1465) 45 (1143) 39 (991) RS - Same day shipment up to 5 pieces 3 Wired for 3-phase operation only 5 When steel vessel materials are used in this application, some rust may be present in the process media 8 an be wired for 1-phase operation UN 31 8 in. Dia. (79.4 mm) Ref. Ref in. (142.9 mm) 31 8 in. (79.4 mm) 43 8 in. (111.1 mm) 11 Ref. (292 mm) 55 8 in. Ref. (142.9 mm) 374 WATLOW

9 irculation Heaters WATROD and FIREAR irculation Heaters Application: lean Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 4 inch lb ANSI Flange (WATROD) 60 W/in FO715J10S RS 124 (57) 39 (989) (521) 17 (432) FO715J3S RS 124 (57) 39 (989) 20 6-opper 2 (521) 17 (432) FO715J11S RS 124 (57) 39 (989) (521) 17 (432) (9.3 W/cm 2 ) FO715J5S RS 124 (57) 39 (989) (521) 17 (432) FO721J10S RS 127 (58) 39 (989) (521) 17 (432) FO721J3S RS 127 (58) 39 (989) (521) 17 (432) FO721J11S RS 127 (58) 39 (989) (521) 17 (432) FO721J5S RS 127 (58) 39 (989) (521) 17 (432) FO727A10S RS 160 (73) (1256) 31 (787) (699) FO727A3S RS 160 (73) (1256) 31 (787) (699) FO727A11S RS 160 (73) (1256) 31 (787) (699) FO727A5S RS 160 (73) (1256) 31 (787) (699) FO732J3S RS 163 (74) (1256) 31 (787) (699) FO732J11S RS 163 (74) (1256) 31 (787) (699) FO732J5S RS 163 (74) (1256) 31 (787) (699) FO738A3S RS 229 (104) (1789) 52 (1321) (1232) FO738A11S RS 229 (104) (1789) 52 (1321) (1232) FO738A5S RS 229 (104) (1789) 52 (1321) (1232) FO751A5S RS 234 (107) (1789) 52 (1321) (1232) FO760J5S S 297 (135) (2326) 73 (1854) 66 (1676) RS - Same day shipment up to 5 pieces S - 10 day lead time 5 When steel vessel materials are used in this application, some rust may be present in the process media 4 inch lb ANSI Flange 1 ARef. Inlet UN in. Ref. (320.7 mm) in. (93.7 mm) in. (147.6 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm) WATLOW 375

10 irculation Heaters WATROD and FIREAR irculation Heaters Application: lean Water 5 WATROD or FIREAR elements # ode Description Volts kw Ph irc. Number 5 inch lb ANSI Flange (WATROD) 60 W/in 2 6-opper (9.3 W/cm 2 ) Del Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FN727A10S RS 140 (64) (1249.0) 30 (762) (378.8) FN727A3S RS 140 (64) (1249.0) 30 (762) (378.8) FN727A11S RS 140 (64) (1249.0) 30 (762) (378.8) FN727A5S RS 140 (64) (1249.0) 30 (762) (378.8) FN732J3S RS 142 (65) (1249.0) 30 (762) (378.8) FN732J11S RS 142 (65) (1249.0) 30 (762) (378.8) FN732J5S RS 142 (65) (1249.0) 30 (762) (378.8) FN738A3S RS 160 (73) (1427.0) 37 (940) (473.1) FN738A11S RS 160 (73) (1427.0) 37 (940) (473.1) FN738A5S RS 160 (73) (1427.0) 37 (940) (473.1) FN751A5S RS 180 (82) (1719.0) (1232) 25 (633.0) FN760J5S S 190 (87) (2060.6) (1572) (784.2) 5 inch lb ANSI Flange (WATROD) 60 W/in 2 9-opper (9.3 W/cm 2 ) FN727A3XS RS 145 (66) (1249.0) 30 (762) (378.8) FN727A11XS RS 145 (66) (1249.0) 30 (762) (378.8) FN727A5XS RS 145 (66) (1249.0) 30 (762) (378.8) FN732J3XS RS 147 (67) (1249.0) 30 (762) (378.8) FN732J11XS RS 147 (67) (1249.0) 30 (762) (378.8) FN732J5XS RS 147 (67) (1249.0) 30 (762) (378.8) FN738A3XS RS 166 (76) (1427.0) 37 (940) (473.1) FN738A11XS RS 166 (76) (1427.0) 37 (940) (473.1) FN738A5XS RS 166 (76) (1427.0) 37 (940) (473.1) FN751A5XS RS 188 (86) (1719.0) (1232) 25 (633.0) FN760J5XS S 200 (91) (2060.6) (1572) (784.2) 6 inch lb ANSI Flange (WATROD) 60 W/in FP715G10S RS 212 (97) (1027) (521) 17 (432) FP715G3S RS 212 (97) (1027) (521) 17 (432) 12-opper FP715G11S RS 212 (97) (1027) (521) 17 (432) FP715G5S RS 212 (97) (1027) (521) 17 (432) (9.3 W/cm 2 ) FP721G10S RS 217 (99) (1027) (521) 17 (432) FP721G3S RS 217 (99) (1027) (521) 17 (432) FP721G11S RS 217 (99) (1027) (521) 17 (432) FP721G5S RS 217 (99) (1027) (521) 17 (432) FP726R3S RS 222 (101) 51 (1294) 31 (787) (699) FP726R11S RS 222 (101) 51 (1294) 31 (787) (699) FP726R5S RS 222 (101) 51 (1294) 31 (787) (699) FP732G3S RS 288 (131) 51 (1294) 31 (787) (699) FP732G11S RS 288 (131) 51 (1294) 31 (787) (699) FP732G5S RS 288 (131) 51 (1294) 31 (787) (699) FP737R3S RS 290 (132) 72 (1827) 52 (1321) (1232) FP737R5S RS 290 (132) 72 (1827) 52 (1321) (1232) FP750R5S RS 298 (136) 72 (1827) 52 (1321) (1232) FP760G5S S 360 (164) 93 (2361) 73 (1854) 66 (1676) 5 When steel vessel materials are used in this application, some rust may be present in the RS - Same day shipment up to 5 pieces process media S - 10 day lead time 5 inch lb ANSI Flange in. Ref. (320.7 mm) 2in. Inlet ARef UN 4¼ in. (108 mm) 2 Inlet in. Ref. (141.3 mm) 75 8 in. (193.7 mm) 6 inch lb ANSI Flange in. Ref. (322.3 mm) ¾-10 UN 2 4¾ in. (121 mm) 65 8 in. Ref. (168.3 mm) 376 WATLOW 25 in. (635 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm)

11 irculation Heaters WATROD and FIREAR irculation Heaters Application: lean Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. 6 inch lb ANSI Flange Description Volts kw Ph irc. Number Del lbs (kg) 6 inch lb ANSI Flange (WATROD) 60 W/in FP715G10XS RS 215 (98) (1027) (521) 17 (432) FP715G3XS RS 215 (98) opper 2 (1027) (521) 17 (432) FP715G11XS RS 215 (98) (1027) (521) 17 (432) in. Ref. (9.3 W/cm 2 ) FP715G5XS RS 215 (98) (1027) (521) 17 (432) (322.3 mm) FP721G10XS RS 223 (102) (1027) (521) 17 (432) FP721G3XS RS 223 (102) (1027) (521) 17 (432) Inlet FP721G11XS RS 223 (102) (1027) (521) 17 (432) FP721G5XS RS 223 (102) (1027) (521) 17 (432) FP726R3XS RS 226 (103) 51 (1294) 31 (787) (699) FP726R11XS RS 226 (103) 51 (1294) 31 (787) (699) FP726R5XS RS 226 (103) 51 (1294) 31 (787) (699) FP732G3XS RS 288 (131) 51 (1294) 31 (787) 27 1 ¾-10 UN 2 2 (699) FP732G11XS RS 288 (131) 51 (1294) 31 (787) (699) FP732G5XS RS 288 (131) 51 (1294) 31 (787) (699) FP737R3XS RS 296 (134) 72 (1827) 52 (1321) (1232) 4¾ in FP737R5XS RS 296 (134) 72 (1827) 52 (1321) (1232) (121 mm) FP750R5XS RS 306 (139) 72 (1827) 52 (1321) (1232) FP760G5XS S 370 (168) 93 (2361) 73 (1854) 66 (1676) 8 inch lb ANSI Flange 8 inch lb ANSI Flange (WATROD) 60 W/in FR721N3S RS 340 (155) (1199.0) (627.0) (538.0) FR721N11S RS 340 (155) opper 4 (1199.0) (627.0) (538.0) FR721N5S RS 340 (155) (1199.0) (627.0) (538.0) (7.5 W/cm 2 ) FR729N3S RS 360 (164) (1402.0) (830.0) (741.0) FR729N5S RS 360 (164) (1402.0) (830.0) (741.0) FR737E3S RS 385 (175) (1580.0) (1008.0) (919.0) FR737E5S RS 385 (175) (1580.0) (1008.0) (919.0) FR745E3S RS 410 (186) (1774.8) (1203.3) (1114.4) FR745E5S RS 410 (186) (1774.8) (1203.3) (1114.4) FR752N5S RS 440 (200) (2016.1) (1444.6) (1355.7) FR760N5S RS 465 (211) (2244.7) (1673.2) (1584.3) FR768E5S RS 510 (232) (2498.7) (1927.2) (1838.3) RS - Next day shipment up to 2 pieces S - 10 day lead time 5 When steel vessel materials are used in this application, some rust may be present in the process media in. Ref. (373.1 mm) ¾-10 UN 2 2 Inlet 5¾ in. (146 mm) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 75 8 in. (193.7 mm) 14 Ref. (368 mm) 3 (89 mm) 10¾ in. (273 mm) WATLOW 377

12 irculation Heaters WATROD and FIREAR irculation Heaters Application: Deionized or Demineralized Water WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim inch Screw Plug Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (WATROD) 60 W/in LR714L3S RS 24 (11) (881) (572) (419) 316 SS LR714L5S RS 24 (11) 34 Tank 4 (881) (572) (419) 1in SS LR717L3S RS 24 (11) (881) (572) (419) Inlet LR717L5S RS 24 (11) (881) (572) (419) (9.3 W/cm 2 ) Passivated LR720L3S RS 26 (12) (881) (572) (419) LR720L5S RS 26 (12) (881) (572) (419) LR7263S RS 27 (13) (1135) (1129) (673) LR7265S RS 27 (13) (1135) (1129) (673) LR731L3S RS 29 (14) (1135) (1129) (673) LR731L5S RS 29 (14) (1135) (1129) (673) in. (125.4 mm) LR7373S RS 30 (14) (1453) 45 (1143) 39 (991) LR7375S RS 30 (14) (1453) 45 (1143) 39 (991) 4 inch lb ANSI Flange (WATROD) 60 W/in FOR716A10S RS 124 (57) 39 (989) (521) 17 (432) 316 SS FOR716A3S RS 124 (57) 39 (989) 20 Tank 2 (521) 17 (432) SS FOR716A11S RS 124 (57) 39 (989) (521) 17 (432) FOR716A5S RS 124 (57) 39 (989) (521) 17 (432) (9.3 W/cm 2 ) Passivated FOR722A10S RS 127 (58) 39 (989) (521) 17 (432) FOR722A3S RS 127 (58) 39 (989) (521) 17 (432) FOR722A11S RS 127 (58) 39 (989) (521) 17 (432) FOR722A5S RS 127 (58) 39 (989) (521) 17 (432) FOR727J10S RS 160 (73) (1256) 31 (787) (699) FOR727J3S RS 160 (73) (1256) 31 (787) (699) FOR727J11S RS 160 (73) (1256) 31 (787) (699) FOR727J5S RS 160 (73) (1256) 31 (787) (699) FOR733A3S RS 163 (74) (1256) 31 (787) (699) FOR733A11S RS 163 (74) (1256) 31 (787) (699) FOR733A5S RS 163 (74) (1256) 31 (787) (699) FOR738J3S RS 229 (104) (1789) 52 (1321) (1232) FOR738J11S RS 229 (104) (1789) 52 (1321) (1232) FOR738J5S RS 229 (104) (1789) 52 (1321) (1232) FOR751J5S RS 234 (107) (1789) 52 (1321) (1232) FOR761A5S RS 297 (135) (2326) 73 (1854) 66 (1676) RS - Next day shipment up to 5 pieces in. Ref. (182.6 mm) in. (284.2 mm) UN 1 Inlet UN in. (93.7 mm) Ref in. (142.9 mm) in. Ref. (320.7 mm) 43 8 in. (111.1 mm) 31 8 in. (79.4 mm) 4 inch lb ANSI Flange in. (147.6 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm) 378 WATLOW

13 irculation Heaters WATROD and FIREAR irculation Heaters Application: Deionized or Demineralized Water WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 6 inch lb ANSI Flange (WATROD) 60 W/in FPR715N10S RS 212 (97) (1027) (521) 17 (432) 316 SS Tank FPR715N3S RS 212 (97) (1027) (521) 17 (432) SS FPR715N11S RS 212 (97) (1027) (521) 17 (432) (9.3 W/cm 2 ) FPR715N5S RS 212 (97) (1027) (521) 17 (432) Passivated FPR721N10S RS 217 (99) (1027) (521) 17 (432) FPR721N3S RS 217 (99) (1027) (521) 17 (432) FPR721N11S RS 217 (99) (1027) (521) 17 (432) FPR721N5S RS 217 (99) (1027) (521) 17 (432) FPR727E3S RS 222 (101) 51 (1294) 31 (787) (699) FPR727E11S RS 222 (101) 51 (1294) 31 (787) (699) FPR727E5S RS 222 (101) 51 (1294) 31 (787) (699) FPR732N3S RS 226 (103) 51 (1294) 31 (787) (699) FPR732N11S RS 226 (103) 51 (1294) 31 (787) (699) FPR732N5S RS 226 (103) 51 (1294) 31 (787) (699) FPR738E3S RS 290 (132) 72 (1827) 52 (1321) (1232) FPR738E5S RS 290 (132) 72 (1827) 52 (1321) (1232) FPR751E5S RS 298 (136) 72 (1827) 52 (1321) (1232) FPR760N5S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) 6 inch lb ANSI Flange ARef in. Ref. (322.3 mm) 2 Inlet ¾-10 UN 2 4¾ in. (121 mm) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 6 inch lb ANSI Flange (WATROD) 60 W/in FPR715N10XS RS 215 (98) (1027) (521) 17 (432) 316 SS Tank FPR715N3XS RS 215 (98) (1027) (521) 17 (432) SS FPR715N11XS RS 215 (98) (1027) (521) 17 (432) (9.3 W/cm 2 ) FPR715N5XS RS 215 (98) (1027) (521) 17 (432) Passivated FPR721N10XS RS 223 (102) (1027) (521) 17 (432) FPR721N3XS RS 223 (102) (1027) (521) 17 (432) FPR721N11XS RS 223 (102) (1027) (521) 17 (432) FPR721N5XS RS 223 (102) (1027) (521) 17 (432) FPR727E3XS RS 226 (103) 51 (1294) 31 (787) (699) FPR727E11XS RS 226 (103) 51 (1294) 31 (787) (699) FPR727E5XS RS 226 (103) 51 (1294) 31 (787) (699) FPR732N3XS RS 288 (131) 51 (1294) 31 (787) (699) FPR732N11XS RS 288 (131) 51 (1294) 31 (787) (699) FPR732N5XS RS 288 (131) 51 (1294) 31 (787) (699) FPR738E3XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPR738E5XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPR751E5XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPR760N5XS RS 370 (168) 93 (2361) 73 (1854) 66 (1676) RS - Next day shipment up to 2 pieces WATLOW 379

14 irculation Heaters WATROD and FIREAR irculation Heaters Application: Process Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (FIREAR) 45 W/in DNF13A27S RS 25 (12) (625.5) 15 (381) (79.4) DNF15J27S RS 26 (12) Incoloy 8 (625.5) 15 (381) (79.4) Element DNF18A27S RS 30 (14) (828.7) 23 (584) (79.4) (7 W/cm 2 ) DNF22J27S RS 31 (14) (828.7) 23 (584) (79.4) DNF22J28S RS 31 (14) (828.7) 23 (584) (79.4) DNF27J27S RS 43 (20) (1082.7) 32 (813) (111.1) DNF27J28S RS 43 (20) (1082.7) 32 (813) (111.1) DNF32J27S RS 44 (20) (1082.7) 32 (813) (111.1) DNF32J28S RS 44 (20) (1082.7) 32 (813) (111.1) DNF42A27S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF42A28S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF51J27S RS 71 (33) (1616.1) 53 (1346) (111.1) DNF51J28S RS 71 (33) (1616.1) 53 (1346) (111.1) inch Screw Plug (WATROD) 48 W/in LN717G3S RS 24 (11) (881) (572) (419) LN717G5S RS 24 (11) Incoloy 4 (881) (572) (419) LN719R3S RS 26 (12) (881) (572) (419) (7.5 W/cm 2 ) LN719R5S RS 26 (12) (881) (572) (419) LN724R3S RS 27 (13) (881) (572) (419) LN724R5S RS 27 (13) (881) (572) (419) LN732G3S RS 29 (14) (1135) (1129) (673) LN732G5S RS 29 (14) (1135) (1129) (673) LN739R3S RS 31 (14) (1453) 45 (1143) 39 (991) LN739R5S RS 31 (14) (1453) 45 (1143) 39 (991) LN747G3S RS 32 (15) (1453) 45 (1143) 39 (991) LN747G5S RS 32 (15) (1453) 45 (1143) 39 (991) inch Screw Plug (FIREAR) 45 W/in LNF12A27S RS 21 (10) (881) (572) (419) LNF14J27S RS 22 (10) (881) (572) (419) 3-Incoloy (7 W/cm 2 ) LNF17A27S RS 23 (11) (881) (572) (419) LNF21J27S RS 31 (14) (881) (572) (419) LNF21J28S RS 31 (14) (881) (572) (419) LNF26J27S RS 34 (16) (1135) (1129) (673) LNF26J28S RS 34 (16) (1135) (1129) (673) LNF31J27S RS 35 (16) (1135) (1129) (673) LNF31J28S RS 35 (16) (1135) (1129) (673) LNF41A28S RS 44 (20) (1453) 45 (1143) 39 (991) LNF50J28S RS 52 (24) (1618) (1308) (1181) RS - Same day shipment up to 5 pieces 8 an be wired for 1-phase operation 5 When steel vessel materials are used in this application, some rust may be present in the process media inch Screw Plug in. Ref. (163.5 mm) ¾ in. Inlet 380 WATLOW Ref. 4 in. (102 mm) 3¾ in. (95 mm) inch Screw Plug 1 in. Inlet in. Ref. (182.6 mm) in. (284.2 mm) in. (125.4 mm) UN ARef. Ref in. (142.9 mm) 43 8 in. (111.1 mm) 31 8 in. (79.4 mm)

15 irculation Heaters WATROD and FIREAR irculation Heaters Application: Process Water 5 WATROD or FIREAR elements # ode Description Volts kw Ph irc. Number 3 inch lb ANSI Flange (WATROD) 48 W/in 2 3-Incoloy (7.5 W/cm 2 ) WATLOW Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FMN718A10S RS 68 (31) (894) (573) (419) FMN718A3S RS 68 (31) (894) (573) (419) FMN718A11S RS 68 (31) (894) (573) (419) FMN718A5S RS 68 (31) (894) (573) (419) FMN720J10S RS 70 (32) (894) (573) (419) FMN720J3S RS 70 (32) (894) (573) (419) FMN720J11S RS 70 (32) (894) (573) (419) FMN720J5S RS 70 (32) (894) (573) (419) FMN725J10S RS 78 (36) (1148) (826) (673) FMN725J3S RS 78 (36) (1148) (826) (673) FMN725J11S RS 78 (36) (1148) (826) (673) FMN725J5S RS 78 (36) (1148) (826) (673) FMN733A3S RS 96 (44) (1148) (826) (673) FMN733A11S RS 96 (44) (1148) (826) (673) FMN733A5S RS 96 (44) (1148) ) (673) FMN740J3S RS 100 (46) (1465) 45 (1143) 39 (991) FMN740J11S RS 100 (46) (1465) 45 (1143) 39 (991) FMN740J5S RS 100 (46) (1465) 45 (1143) 39 (991) FMN748A3S RS 107 (49) (1465) 45 (1143) 39 (991) FMN748A11S RS 107 (49) (1465) 45 (1143) 39 (991) FMN748A5S RS 107 (49) (1465) 45 (1143) 39 (991) 4 inch lb ANSI Flange (WATROD) 48 W/in FON713J10S RS 122 (56) 39 (989) (521) 17 (432) FON713J3S RS 122 (56) 39 (989) (521) 17 (432) 6-Incoloy FON713J11S RS 122 (56) 39 (989) (521) 17 (432) FON713J5S RS 122 (56) 39 (989) (521) 17 (432) (7.5 W/cm 2 ) FON718A10S RS 125 (57) 39 (989) (521) 17 (432) FON718A3S RS 125 (57) 39 (989) (521) 17 (432) FON718A11S RS 125 (57) 39 (989) (521) 17 (432) FON718A5S RS 125 (57) 39 (989) (521) 17 (432) FON720J10S RS 127 (58) 39 (989) (521) 17 (432) FON720J3S RS 127 (58) 39 (989) (521) 17 (432) FON720J11S RS 127 (58) 39 (989) (521) 17 (432) FON720J5S RS 127 (58) 39 (989) (521) 17 (432) FON725J10S RS 160 (73) 39 (989) (521) 17 (432) FON725J3S RS 160 (73) 39 (989) (521) 17 (432) FON725J11S RS 160 (73) 39 (989) (521) 17 (432) FON725J5S RS 160 (73) 39 (989) (521) 17 (432) FON733A10S RS 163 (74) (1256) 31 (787) (699) FON733A3S RS 163 (74) (1256) 31 (787) (699) FON733A11S RS 163 (74) (1256) 31 (787) (699) FON733A5S RS 163 (74) (1256) 31 (787) (699) FON740J3S RS 229 (104) (1789) 52 (1321) (1232) FON740J11S RS 229 (104) (1789) 52 (1321) (1232) FON740J5S RS 229 (104) (1789) 52 (1321) (1232) FON748A3S RS 234 (107) (1789) 52 (1321) (1232) FON748A11S RS 234 (107) (1789) 52 (1321) (1232) FON748A5S RS 234 (107) (1789) 52 (1321) (1232) RS - Next day shipment up to 2 pieces 5 When steel vessel materials are used in this application, some rust may be present in the process media 3 inch lb ANSI Flange in. Ref. (195.3 mm) 1in. Inlet & Outlet UN 31 8 in. Dia. (79.4 mm) Ref in. (111.1 mm) 4 inch lb ANSI Flange in. Ref. (320.7 mm) 1 Inlet UN in. (93.7 mm) 11 Ref. (292 mm) 55 8 in. Ref. (142.9 mm) in. (147.6 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm) 381

16 irculation Heaters WATROD and FIREAR irculation Heaters Application: Process Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 4 inch lb ANSI Flange (FIREAR) 45 W/in FONF13G27S RS 125 (57) 39 (989) (521) 17 (432) FONF16A27S RS 128 (58) 39 (989) 20 6-Incoloy 2 (521) 17 (432) FONF18G27S RS 130 (59) 39 (989) (521) 17 (432) (7 W/cm 2 ) FONF22R27S RS 133 (61) 39 (989) (521) 17 (432) FONF22R28S RS 133 (61) 39 (989) (521) 17 (432) FONF27R27S RS 168 (77) (1256) 31 (787) (699) FONF27R28S RS 168 (77) (1256) 31 (787) (699) FONF32R27S RS 170 (78) (1256) 31 (787) (699) FONF32R28S RS 170 (78) (1256) 31 (787) (699) FONF42G28S RS 236 (107) (1789) 52 (1321) (1232) FONF51R28S RS 240 (109) (1789) 52 (1321) (1232) 5 inch lb ANSI Flange (WATROD) 48 W/in FNN733A10S RS 145 (66) (1249) 30 (762) (377.8) FNN733A3S RS 145 (66) 49 6-Incoloy 4 (1249) 30 (762) (377.8) FNN733A11S RS 145 (66) (1249) 30 (762) (377.8) (7.5 W/cm 2 ) FNN733A5S RS 145 (66) (1249) 30 (762) (377.8) FNN740J3S RS 167 (76) (1427) 37 (940) (473.1) FNN740J11S RS 167 (76) (1427) 37 (940) (473.1) FNN740J5S RS 167 (76) (1427) 37 (940) (473.1) FNN748A3S RS 180 (82) (1719) (1232) 25 (633.0) FNN748A11S RS 180 (82) (1719) (1232) 25 (633.0) FNN748A5S RS 180 (82) (1719) (1232) 25 (633.0) 4 inch lb ANSI Flange 1 Inlet UN in. Ref. (320.7 mm) in. (93.7 mm) 5 inch lb ANSI Flange in. Ref. (320.7 mm) in. (147.6 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm) in. Ref. (141.3 mm) 5 inch lb ANSI Flange (WATROD) 48 W/in FNN733A3XS RS 150 (68) (1249) 30 (762) (377.8) FNN733A11XS RS 150 (68) 49 9-Incoloy 4 (1249) 30 (762) (377.8) FNN733A5XS RS 150 (68) (1249) 30 (762) (377.8) (7.5 W/cm 2 ) FNN740J3XS RS 173 (79) (1427) 37 (940) (473.1) FNN740J11XS RS 173 (79) (1427) 37 (940) (473.1) FNN740J5XS RS 173 (79) (1427) 37 (940) (473.1) FNN748A3XS RS 188 (86) (1719) (1232) 25 (633.0) FNN748A11XS RS 188 (86) (1719) (1232) 25 (633.0) FNN748A5XS RS 188 (86) (1719) (1232) 25 (633.0) RS - Same day shipment up to 5 pieces 5 When steel vessel materials are used in this application, some rust may be present in the process media 2 in. Inlet ARef UN 4¼ in. (108 mm) 25 in. (635 mm) 75 8 in. (193.7 mm) 382 WATLOW

17 irculation Heaters WATROD and FIREAR irculation Heaters Application: Process Water 5 WATROD or FIREAR elements # ode Description Volts kw Ph irc. Number 6 inch lb ANSI Flange (WATROD) 48 W/in 2 12-Incoloy (7.5 W/cm 2 ) Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FPN713G10S RS 212 (97) (1027) (521) 17 (432) FPN713G3S RS 212 (97) (1027) (521) 17 (432) FPN713G11S RS 212 (97) (1027) (521) 17 (432) FPN713G5S RS 212 (97) (1027) (521) 17 (432) FPN717R10S RS 214 (97) (1027) (521) 17 (432) FPN717R3S RS 214 (97) (1027) (521) 17 (432) FPN717R11S RS 214 (97) (1027) (521) 17 (432) FPN717R5S RS 214 (97) (1027) (521) 17 (432) FPN720G10S RS 217 (99) (1027) (521) 17 (432) FPN720G3S RS 217 (99) (1027) (521) 17 (432) FPN720G11S RS 217 (99) (1027) (521) 17 (432) FPN720G5S RS 217 (99) (1027) (521) 17 (432) FPN725G10S RS 222 (101) (1027) (521) 17 (432) FPN725G3S RS 222 (101) (1027) (521) 17 (432) FPN725G11S RS 222 (101) (1027) (521) 17 (432) FPN725G5S RS 222 (101) (1027) (521) 17 (432) FPN732R3S RS 226 (103) 51 (1294) 31 (787) (699) FPN732R11S RS 226 (103) 51 (1294) 31 (787) (699) FPN732R5S RS 226 (103) 51 (1294) 31 (787) (699) FPN740G3S RS 290 (132) 72 (1827) 52 (1321) (1232) FPN740G11S RS 290 (132) 72 (1827) 52 (1321) (1232) FPN740G5S RS 290 (132) 72 (1827) 52 (1321) (1232) FPN747R3S RS 298 (136) 72 (1827) 52 (1321) (1232) FPN747R5S RS 298 (136) 72 (1827) 52 (1321) (1232) 6 inch lb ANSI Flange in. Ref. (322.3 mm) 2 Inlet ¾-10 UN 2 4¾ in. (121 mm) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 6 inch lb ANSI Flange (WATROD) 48 W/in FPN713G10XS RS 215 (98) (1027) (521) 17 (432) FPN713G3XS RS 215 (98) (1027) (521) 17 (432) 15-Incoloy FPN713G11XS RS 215 (98) (1027) (521) 17 (432) FPN713G5XS RS 215 (98) (1027) (521) 17 (432) (7.5 W/cm 2 ) FPN717R10XS RS 217 (99) (1027) (521) 17 (432) FPN717R3XS RS 217 (99) (1027) (521) 17 (432) FPN717R11XS RS 217 (99) (1027) (521) 17 (432) FPN717R5XS RS 217 (99) (1027) (521) 17 (432) FPN720G10XS RS 223 (102) (1027) (521) 17 (432) FPN720G3XS RS 223 (102) (1027) (521) 17 (432) FPN720G11XS RS 223 (102) (1027) (521) 17 (432) FPN720G5XS RS 223 (102) (1027) (521) 17 (432) FPN725G10XS RS 226 (103) (1027) (521) 17 (432) FPN725G3XS RS 226 (103) (1027) (521) 17 (432) FPN725G11XS RS 226 (103) (1027) (521) 17 (432) FPN725G5XS RS 226 (103) (1027) (521) 17 (432) FPN732R3XS RS 288 (131) 51 (1294) 31 (787) (699) FPN732R11XS RS 288 (131) 51 (1294) 31 (787) (699) FPN732R5XS RS 288 (131) 51 (1294) 31 (787) (699) FPN740G3XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPN740G11XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPN740G5XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPN747R3XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPN747R5XS RS 306 (139) 72 (1827) 52 (1321) (1232) RS - Same day shipment up to 2 pieces 5 When steel vessel materials are used in this application, some rust may be present in the process media WATLOW 383

18 irculation Heaters WATROD and FIREAR irculation Heaters Application: Process Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 6 inch lb ANSI Flange (FIREAR) 45 W/in FPNF13G27S RS 217 (99) (1027) (521) 17 (432) FPNF16A27S RS 220 (100) Incoloy 2 (1027) (521) 17 (432) FPNF18G27S RS 223 (102) (1027) (521) 17 (432) (7 W/cm 2 ) FPNF22R27S RS 226 (103) (1027) (521) 17 (432) FPNF22R28S RS 226 (103) (1027) (521) 17 (432) FPNF27R27S RS 232 (106) 51 (1294) 31 (787) (699) FPNF27R28S RS 232 (106) 51 (1294) 31 (787) (699) FPNF32R27S RS 236 (107) 51 (1294) 31 (787) (699) FPNF32R28S RS 236 (107) 51 (1294) 31 (787) (699) FPNF42G28S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF51R28S RS 314 (143) 72 (1827) 52 (1321) (1232) 6 inch lb ANSI Flange in. Ref. (322.3 mm) 2 Inlet 65 8 in. Ref. (168.3 mm) 8 inch lb ANSI Flange (WATROD) ¾-10 UN 2 48 W/in FRN725N3S RS 350 (159) (1402.0) (830.0) (741.0) FRN725N11S RS 350 (159) Incoloy 4 (1402.0) (830.0) (741.0) FRN725N5S RS 350 (159) (1402.0) (830.0) (741.0) 4¾ in. (121 mm) (7.5 W/cm 2 ) FRN735N3S RS 380 (173) (1580.0) (1008.0) (919.0) FRN735N5S RS 380 (173) (1580.0) (1008.0) (919.0) FRN744E3S RS 410 (186) (1774.8) (1203.3) (1114.4) 8 inch lb ANSI Flange FRN744E5S RS 410 (186) (1774.8) (1203.3) (1114.4) FRN754M3S RS 445 (202) (2016.1) (1444.6) (1355.7) FRN754M5S RS 445 (202) (2016.1) (1444.6) (1355.7) FRN763M5S RS 490 (223) (2244.7) (1673.2) (1584.3) FRN773D5S RS 530 (241) (2498.7) (1927.2) (1838.3) FRN782M5S RS 560 (254) (2498.7) (1927.2) (1838.3) in. Ref. (373.1 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 75 8 in. (193.7 mm) 14 Ref. (368 mm) 8 inch lb ANSI Flange (WATROD) 48 W/in FRN726D3XS RS 358 (163) (1402.0) (830.0) (741.0) FRN726D11XS RS 358 (163) Incoloy 4 (1402.0) (830.0) (741.0) FRN726D5XS RS 358 (163) (1402.0) (830.0) (741.0) (7.5 W/cm 2 ) FRN736D3XS RS 392 (178) (1580.0) (1008.0) (919.0) FRN736D5XS RS 392 (178) (1580.0) (1008.0) (919.0) FRN744M3XS RS 425 (193) (1774.8) (1203.3) (1114.4) FRN744M5XS RS 425 (193) (1774.8) (1203.3) (1114.4) FRN754M3XS RS 463 (210) (2016.1) (1444.6) (1355.7) FRN754M5XS RS 463 (210) (2016.1) (1444.6) (1355.7) FRN763M5XS RS 511 (232) (2244.7) (1673.2) (1584.3) FRN773D5XS RS 554 (252) (2498.7) (1927.2) (1838.3) FRN782M5XS RS 587 (267) (2498.7) (1927.2) (1838.3) RS - Next day shipment up to 2 pieces 5 When steel vessel materials are used in this application, some rust may be present in the process media ¾-10 UN 2 2 Inlet 5¾ in. (146 mm) 3 (89 mm) 10¾ in. (273 mm) 384 WATLOW

19 irculation Heaters WATROD and FIREAR irculation Heaters Application: Process Water 5 WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 10 inch lb ANSI Flange (WATROD) 48 W/in Incoloy (7.5 W/cm 2 ) FSN773E5S S 600 (273) (2708.3) (2308.2) (2471.7) 12 inch, 150 lb ANSI Flange (WATROD) 48 W/in 2 36-Incoloy (7.5 W/cm 2 ) FTN7735S S 650 (295) (2705) (2295.5) (2467.0) 14 inch lb ANSI Flange (WATROD) 48 W/in FWN754J5S S 600 (273) (2115) 67 (1700) (1871.7) 45-Incoloy (7.5 W/cm 2 ) FWN763J5S S 650 (295) (2305) (1891) (2062.2) S - 10 day lead time 5 When steel vessel materials are used in this application, some rust may be present in the process media 8 an be wired for 1-phase operation 10 inch lb ANSI Flange 3 in. Flange Inlet & Outlet 11 (292 mm) 15¾ in. Ref. (400 mm) in. (328.6 mm) (2) ¾ -10 UN 2 Holes 9 in. Ref. (229 mm) 12 inch lb ANSI Flange 14 inch lb ANSI Flange 15 in. 14 in. (381 mm) (356 mm) 5 in. Flange Inlet & Outlet in. Ref. (411.2 mm) (2) ¾ -10 UN 2 Holes in. Ref. (230.2 mm) 6 in. Flange Inlet & Outlet ARef in. Ref. (414.3 mm) 11 (292 mm) (2) ¾ -10 UN 2 Holes 9¼ in. Ref. (235 mm) in. (327 mm) (13 mm) 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot in. (377.8 mm) (13 mm) 7 8 in. (22.2 mm) X 2in.(51mm)Slot 3 (89 mm) in. (410 mm) (13 mm) 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot (318 mm) 12 (318 mm) 12 (318 mm) WATLOW 385

20 irculation Heaters WATROD and FIREAR irculation Heaters Application: Forced Air and austic Solutions WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (WATROD) 23 W/in / EN13G6S RS 21 (10) (625.5) 15 (381) (79.4) 120/ EN19A6S RS 29 (14) 24 2-Incoloy 8 (625.5) 15 (381) (79.4) (3.6 W/cm 2 ) 120/ EN24G6S RS 29 (14) (828.7) 23 (584) (79.4) inch Screw Plug (WATROD) 23 W/in LNA17G3S RS 24 (11) (881) (572) (419) LNA17G5S RS 24 (11) 34 3-Incoloy 4 (881) (572) (419) LNA24R3S RS 27 (13) (1135) (1129) (673) (3.6 W/cm 2 ) LNA24R5S RS 27 (13) (1135) (1129) (673) LNA32G3S RS 29 (14) (1135) (1129) (673) LNA32G5S RS 29 (14) (1135) (1129) (673) LNA39R3S RS 31 (14) (1453) 45 (1143) 39 (991) LNA39R5S RS 31 (14) (1453) 45 (1143) 39 (991) LNA47G3S RS 32 (15) (1453) 45 (1143) 39 (991) LNA47G5S RS 32 (15) (1453) 45 (1143) 39 (991) RS - Same day shipment up to 5 pieces 4 Wired for higher voltage inch Screw Plug in. Ref. (163.5 mm) ¾ in. Inlet Ref. 4 in. (102 mm) 3¾ in. (95 mm) inch Screw Plug 1 in. Inlet in. Ref. (182.6 mm) in. (284.2 mm) ARef in. (125.4 mm) UN Ref in. (142.9 mm) 31 8 in. (79.4 mm) 43 8 in. (111.1 mm) 386 WATLOW

21 irculation Heaters WATROD and FIREAR irculation Heaters Application: Forced Air and austic Solutions WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. 3 inch lb ANSI Flange Description Volts kw Ph irc. Number Del. lbs (kg) 3 inch lb ANSI Flange (WATROD) 23 W/in FMNA18A10S RS 68 (31) (894) (573) (419) FMNA18A3S RS 68 (31) 35 3-Incoloy 4 (894) (573) (419) FMNA18A11S RS 68 (31) (894) (573) (419) (3.6 W/cm 2 in. Ref. ) FMNA18A5S RS 68 (31) (894) (573) (419) (195.3 mm) FMNA25J10S RS 78 (36) (1148) (826) (673) 1in FMNA25J3S RS 78 (36) (1148) (826) 26 1 Inlet 2 (673) & Outlet FMNA25J11S RS 78 (36) (1148) (826) (673) FMNA25J5S RS 78 (36) (1148) (826) (673) FMNA33A10S RS 96 (44) (1148) (826) (673) FMNA33A3S RS 96 (44) (1148) (826) (673) UN FMNA33A11S RS 96 (44) (1148) (826) (673) FMNA33A5S RS 96 (44) (1148) (826) (673) 31 8 in. Dia. (79.4 mm) Ref FMNA40J10S RS 100 (46) (1465) 45 (1143) 39 (991) FMNA40J3S RS 100 (46) (1465) 45 (1143) 39 (991) FMNA40J11S RS 100 (46) (1465) 45 (1143) 39 (991) FMNA40J5S RS 100 (46) (1465) 45 (1143) 39 (991) FMNA48A10S RS 107 (49) (1465) 45 (1143) 39 (991) FMNA48A3S RS 107 (49) (1465) 45 (1143) 39 (991) FMNA48A11S RS 107 (49) (1465) 45 (1143) 39 (991) FMNA48A5S RS 107 (49) (1465) 45 (1143) 39 (991) RS - Same day shipment up to 5 pieces 43 8 in. (111.1 mm) 11 Ref. (292 mm) 55 8 in. Ref. (142.9 mm) WATLOW 387

22 irculation Heaters WATROD and FIREAR irculation Heaters Application: Forced Air and austic Solutions WATROD or FIREAR elements # ode Description Volts kw Ph irc. Number 4 inch lb ANSI Flange (WATROD) 23 W/in Incoloy (3.6 W/cm 2 ) Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FONA18A10S RS 125 (57) 39 (989) (521) 17 (432) FONA18A3S RS 125 (57) 39 (989) (521) 17 (432) FONA18A11S RS 125 (57) 39 (989) (521) 17 (432) FONA18A5S RS 125 (57) 39 (989) (521) 17 (432) FONA25J10S RS 160 (73) 39 (989) (521) 17 (432) FONA25J3S RS 160 (73) 39 (989) (521) 17 (432) FONA25J11S RS 160 (73) 39 (989) (521) 17 (432) FONA25J5S RS 160 (73) 39 (989) (521) 17 (432) FONA33A10S RS 163 (74) (1256) 31 (787) (699) FONA33A3S RS 163 (74) (1256) 31 (787) (699) FONA33A11S RS 163 (74) (1256) 31 (787) (699) FONA33A5S RS 163 (74) (1256) 31 (787) (699) FONA40J10S RS 229 (104) (1789) 52 (1321) (1232) FONA40J3S RS 229 (104) (1789) 52 (1321) (1232) FONA40J11S RS 229 (104) (1789) 52 (1321) (1232) FONA40J5S RS 229 (104) (1789) 52 (1321) (1232) FONA48A10S RS 234 (107) (1789) 52 (1321) (1232) FONA48A3S RS 234 (107) (1789) 52 (1321) (1232) FONA48A11S RS 234 (107) (1789) 52 (1321) (1232) FONA48A5S RS 234 (107) (1789) 52 (1321) (1232) FONA64J3S RS 298 (136) (2326) 73 (1854) 66 (1676) FONA64J11S RS 298 (136) (2326) 73 (1854) 66 (1676) FONA64J5S RS 298 (136) (2326) 73 (1854) 66 (1676) FONA77A3S RS 306 (139) (2326) 73 (1854) 66 (1676) FONA77A11S RS 306 (139) (2326) 73 (1854) 66 (1676) FONA77A5S RS 306 (139) (2326) 73 (1854) 66 (1676) 5 inch lb ANSI Flange (WATROD) 23 W/in FNNA25J10S RS 140 (64) (1249.0) 30 (762.0) (377.8) FNNA25J3S RS 140 (64) (1249.0) 30 (762.0) (377.8) 6-Incoloy FNNA25J11S RS 140 (64) (1249.0) 30 (762.0) (377.8) FNNA25J5S RS 140 (64) (1249.0) 30 (762.0) (377.8) (3.6 W/cm 2 ) FNNA33A10S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNNA33A3S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNNA33A11S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNNA33A5S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNNA40J10S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNNA40J3S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNNA40J11S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNNA40J5S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNNA48A10S RS 180 (82) (1719.0) (1232.0) 25 (633.0) FNNA48A3S RS 180 (82) (1719.0) (1232.0) 25 (633.0) FNNA48A11S RS 180 (82) (1719.0) (1232.0) 25 (633.0) FNNA48A5S RS 180 (82) (1719.0) (1232.0) 25 (633.0) FNNA64J3S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNNA64J11S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNNA64J5S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNNA77A3S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) FNNA77A11S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) FNNA77A5S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) RS - Same day shipment up to 5 pieces 6 an be wired 3-phase wye to produce 1 3 of the rated kw and watt density 4 inch lb ANSI Flange in. Ref. (320.7 mm) 1 Inlet UN in. (93.7 mm) in. (147.6 mm) 5 inch lb ANSI Flange in. Ref. (320.7 mm) 2in. Inlet ARef UN 4¼ in. (108 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm) 388 WATLOW in. Ref. (141.3 mm) 25 in. (635 mm) 75 8 in. (193.7 mm)

23 irculation Heaters WATROD and FIREAR irculation Heaters Application: Forced Air and austic Solutions WATROD or FIREAR elements Description Volts kw # Ph irc. ode Number 5 inch lb ANSI Flange (WATROD) 23 W/in Incoloy (3.6 W/cm 2 ) WATLOW Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FNNA25J10XS RS 145 (66) (1249.0) 30 (762.0) (377.8) FNNA25J3XS RS 145 (66) (1249.0) 30 (762.0) (377.8) FNNA25J11XS RS 145 (66) (1249.0) 30 (762.0) (377.8) FNNA25J5XS RS 145 (66) (1249.0) 30 (762.0) (377.8) FNNA33A10XS RS 150 (68) (1427.0) 37 (940.0) (473.1) FNNA33A3XS RS 150 (68) (1427.0) 37 (940.0) (473.1) FNNA33A11XS RS 150 (68) (1427.0) 37 (940.0) (473.1) FNNA33A5XS RS 150 (68) (1427.0) 37 (940.0) (473.1) FNNA40J10XS RS 174 (79) (1427.0) 37 (940.0) (473.1) FNNA40J3XS RS 174 (79) (1427.0) 37 (940.0) (473.1) FNNA40J11XS RS 174 (79) (1427.0) 37 (940.0) (473.1) FNNA40J5XS RS 174 (79) (1427.0) 37 (940.0) (473.1) FNNA48A10XS RS 189 (86) (1719.0) (1232.0) 25 (633.0) FNNA48A3XS RS 189 (86) (1719.0) (1232.0) 25 (633.0) FNNA48A11XS RS 189 (86) (1719.0) (1232.0) 25 (633.0) FNNA48A5XS RS 189 (86) (1719.0) (1232.0) 25 (633.0) FNNA64J3XS RS 207 (94) (2060.6) (1571.6) 25 (633.0) FNNA64J11XS RS 207 (94) (2059.0) (1571.6) 25 (633.0) FNNA64J5XS RS 207 (94) (2059.0) (1571.6) 25 (633.0) FNNA77A3XS RS 233 (106) (2389.0) 75 (1902.0) 25 (633.0) FNNA77A11XS RS 233 (106) (2389.0) 75 (1902.0) 25 (633.0) FNNA77A5XS RS 233 (106) (2389.0) 75 (1902.0) 25 (633.0) 6 inch lb ANSI Flange (WATROD) 23 W/in FPNA17R10S RS 214 (97) (1027) (521) 17 (432) FPNA17R3S RS 214 (97) (1027) (521) 17 (432) 12-Incoloy FPNA17R11S RS 214 (97) (1027) (521) 17 (432) FPNA17R5S RS 214 (97) (1027) (521) 17 (432) (3.6 W/cm 2 ) FPNA25G10S RS 222 (101) (1027) (521) 17 (432) FPNA25G3S RS 222 (101) (1027) (521) 17 (432) FPNA25G11S RS 222 (101) (1027) (521) 17 (432) FPNA25G5S RS 222 (101) (1027) (521) 17 (432) FPNA32R10S RS 226 (103) 51 (1294) 31 (787) (699) FPNA32R3S RS 226 (103) 51 (1294) 31 (787) (699) FPNA32R11S RS 226 (103) 51 (1294) 31 (787) (699) FPNA32R5S RS 226 (103) 51 (1294) 31 (787) (699) FPNA40G10S RS 290 (132) 72 (1827) 52 (1321) (1232) FPNA40G3S RS 290 (132) 72 (1827) 52 (1321) (1232) FPNA40G11S RS 290 (132) 72 (1827) 52 (1321) (1232) FPNA40G5S RS 290 (132) 72 (1827) 52 (1321) (1232) FPNA47R10S RS 298 (136) 72 (1827) 52 (1321) (1232) FPNA47R3S RS 298 (136) 72 (1827) 52 (1321) (1232) FPNA47R11S RS 298 (136) 72 (1827) 52 (1321) (1232) FPNA47R5S RS 298 (136) 72 (1827) 52 (1321) (1232) FPNA64G3S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPNA64G11S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPNA64G5S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPNA76R3S RS 368 (167) 93 (2361) 73 (1854) 66 (1676) FPNA76R11S RS 368 (167) 93 (2361) 73 (1854) 66 (1676) FPNA76R5S RS 368 (167) 93 (2361) 73 (1854) 66 (1676) RS - Same day shipment up to 5 pieces 6 an be wired 3-phase wye to produce 1 3 of the rated kw and watt density 5 inch lb ANSI Flange in. Ref. (320.7 mm) 2 in. Inlet UN 4¼ in. (108 mm) in. Ref. (141.3 mm) 6 inch lb ANSI Flange in. Ref. (322.3 mm) 2 Inlet ¾-10 UN 2 4¾ in. (121 mm) 25 in. (635 mm) 75 8 in. (193.7 mm) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 389

24 irculation Heaters WATROD and FIREAR irculation Heaters Application: Forced Air and austic Solutions WATROD or FIREAR elements # ode Description Volts kw Ph irc. Number 6 inch lb ANSI Flange (WATROD) 23 W/in 2 15-Incoloy (3.6 W/cm 2 ) Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FPNA17R10XS RS 217 (99) (1027) (521) 17 (432) FPNA17R3XS RS 217 (99) (1027) (521) 17 (432) FPNA17R11XS RS 217 (99) (1027) (521) 17 (432) FPNA17R5XS RS 217 (99) (1027) (521) 17 (432) FPNA25G10XS RS 226 (103) (1027) (521) 17 (432) FPNA25G3XS RS 226 (103) (1027) (521) 17 (432) FPNA25G11XS RS 226 (103) (1027) (521) 17 (432) FPNA25G5XS RS 226 (103) (1027) (521) 17 (432) FPNA32R10XS RS 288 (131) 51 (1294) 31 (787) (699) FPNA32R3XS RS 288 (131) 51 (1294) 31 (787) (699) FPNA32R11XS RS 288 (131) 51 (1294) 31 (787) (699) FPNA32R5XS RS 288 (131) 51 (1294) 31 (787) (699) FPNA40G10XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPNA40G3XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPNA40G11XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPNA40G5XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPNA47R10XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPNA47R3XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPNA47R11XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPNA47R5XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPNA64G3XS RS 370 (168) 93 (2361) 73 (1854) 66 (1676) FPNA64G11XS RS 370 (168) 93 (2361) 73 (1854) 66 (1676) FPNA64G5XS RS 370 (168) 93 (2361) 73 (1854) 66 (1676) FPNA76R3XS RS 381 (173) 93 (2361) 73 (1854) 66 (1676) FPNA76R11XS RS 381 (173) 93 (2361) 73 (1854) 66 (1676) FPNA76R5XS RS 381 (173) 93 (2361) 73 (1854) 66 (1676) 8 inch lb ANSI Flange (WATROD) 23 W/in 2 18-Incoloy (3.6 W/cm 2 ) FRNA32N10S RS 370 (168) (1402.0) (830.0) (741.0) FRNA32N3S RS 370 (168) (1402.0) (830.0) (741.0) FRNA32N11S RS 370 (168) (1402.0) (830.0) (741.0) FRNA32N5S RS 370 (168) (1402.0) (830.0) (741.0) FRNA43E3S RS 410 (186) (1580.0) (1008.0) (919.0) FRNA43E11S RS 410 (186) (1580.0) (1008.0) (919.0) FRNA43E5S RS 410 (186) (1580.0) (1008.0) (919.0) FRNA51M3S RS 440 (200) (1774.8) (1203.3) (1114.4) FRNA51M11S RS 440 (200) (1774.8) (1203.3) (1114.4) FRNA51M5S RS 440 (200) (1774.8) (1203.3) (1114.4) 8 inch lb ANSI Flange (WATROD) 23 W/in 2 24-Incoloy (3.6 W/cm 2 ) FRNA33D10XS RS 382 (174) (1402.0) (830.0) (741.0) FRNA33D3XS RS 382 (174) (1402.0) (830.0) (741.0) FRNA33D11XS RS 382 (174) (1402.0) (830.0) (741.0) FRNA33D5XS RS 382 (174) (1402.0) (830.0) (741.0) FRNA43M3XS RS 425 (193) (1580.0) (1008.0) (919.0) FRNA43M11XS RS 425 (193) (1580.0) (1008.0) (919.0) FRNA43M5XS RS 425 (193) (1580.0) (1008.0) (919.0) FRNA51M3XS RS 457 (207) (1774.8) (1203.3) (1114.4) FRNA51M11XS RS 457 (207) (1774.8) (1203.3) (1114.4) FRNA51M5XS RS 457 (207) (1774.8) (1203.3) (1114.4) RS - Next day shipment up to 2 pieces 6 inch lb ANSI Flange in. Ref. (322.3 mm) 2 Inlet ¾-10 UN 2 4¾ in. (121 mm) 65 8 in. Ref. (168.3 mm) 8 inch lb ANSI Flange in. Ref. (366.7 mm) 390 WATLOW ARef in. Ref. (373.1 mm) ¾-10 UN 2 2 Inlet 5¾ in. (146 mm) 3 (89 mm) 8¾ in. (222 mm) 75 8 in. (193.7 mm) 14 Ref. (368 mm) 3 (89 mm) 10¾ in. (273 mm)

25 irculation Heaters WATROD and FIREAR irculation Heaters Application: Forced Air and austic Solutions WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 10 inch lb ANSI Flange (WATROD) 23 W/in FSNA43N3S S 515 (234) (1946.3) (1546.2) (1709.7) FSNA43N5S S 515 (234) Incoloy 8 (1946.3) (1546.2) (1709.7) FSNA51N3S S 530 (241) (2136.8) (1736.2) (1900.2) (3.6 W/cm 2 ) FSNA51N5S S 530 (241) (2136.8) (1736.2) (1900.2) 12 inch lb ANSI Flange (WATROD) 23 W/in FTNA43L5S S 565 (257) (1952.6) (1541) (1714.0) 36-Incoloy (3.6 W/cm 2 ) FTNA51L5S S 585 (266) (2143.1) (1732) 75 (1905.0) 14 inch lb ANSI Flange (WATROD) 23 W/in FWNA43J5S S 570 (259) (1924) (1510) (1681.2) 45-Incoloy (3.6 W/cm 2 ) FWNA51J5S S 590 (268) (2115) 67 (1700) (1871.7) S - 10 day lead time 10 inch lb ANSI Flange 12 inch lb ANSI Flange 14 inch lb ANSI Flange 3 in. Flange Inlet & Outlet 11 (292 mm) 15¾ in. Ref. (400 mm) in. (327 mm) 12 (318 mm) in. (328.6 mm) (2) ¾ -10 UN 2 Holes 9 in. Ref. (229 mm) (13 mm) in. (22.2 mm) X 2 in. (51 mm) Slot 5 in. Flange Inlet & Outlet ARef in. Ref. (411.2 mm) in. (377.8 mm) 14 in. (356 mm) 12 (318 mm) (2) ¾ -10 UN 2 Holes in. Ref. (230.2 mm) (13 mm) 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot 4 6 in. Flange Inlet & Outlet in. Ref. (414.3 mm) 3 (89 mm) in. (410 mm) 15 in. (381 mm) 11 (292 mm) 12 (318 mm) 9¼ in. Ref. (235 mm) (13 mm) 4 (2) ¾ -10 UN 2 Holes 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot WATLOW 391

26 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (WATROD) 23 W/in / ES19G6S RS 29 (14) (625.5) 15 (381) (79.4) 120/ ES25G6S RS 29 (14) 32 2-Steel 5 8 (828.7) 23 (584) 3 (76.0) Element (3.6 W/cm 2 ) inch Screw Plug (FIREAR) 30 W/in DNF16G12S RS 26 (12) (625.5) 15 (381) (79.4) DNF16G13S RS 26 (12) 24 1-Incoloy 8 (625.5) 15 (381) (79.4) DNF19G12S RS 30 (14) (828.7) 23 (584) (79.4) (4.7 W/cm 2 ) DNF19G13S RS 30 (14) (828.7) 23 (584) (79.4) DNF24L12S RS 31 (14) (828.7) 23 (584) (79.4) DNF24L13S RS 31 (14) (828.7) 23 (584) (79.4) DNF29R12S RS 43 (20) (1082.7) 32 (813) (111.1) DNF29R13S RS 43 (20) (1082.7) 32 (813) (111.1) DNF34R12S RS 44 (20) (1082.7) 32 (813) (111.1) DNF34R13S RS 44 (20) (1082.7) 32 (813) (111.1) DNF45G12S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF45G13S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF55R12S RS 71 (33) (1616.1) 53 (1346) (111.1) DNF55R13S RS 71 (33) (1616.1) 53 (1346) (111.1) inch Screw Plug in. Ref. (163.5 mm) ¾ in. Inlet Ref. 4 in. (102 mm) 3¾ in. (95 mm) inch Screw Plug (FIREAR) 23 W/in DNF16G20S RS 26 (12) (625.5) 15 (381) (79.4) DNF19G20S RS 30 (14) 32 1-Incoloy 8 (828.7) 23 (584) (79.4) (3.6 W/cm 2 ) DNF24L20S RS 31 (14) (828.7) 23 (584) (79.4) DNF24L19S RS 31 (14) (828.7) 23 (584) (79.4) DNF29R20S RS 43 (20) (1082.7) 32 (813) (111.1) DNF29R19S RS 43 (20) (1082.7) 32 (813) (111.1) DNF34R20S RS 44 (20) (1082.7) 32 (813) (111.1) DNF34R19S RS 44 (20) (1082.7) 32 (813) (111.1) DNF45G20S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF45G19S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF55R20S RS 71 (33) (1616.1) 53 (1346) (111.1) DNF55R19S RS 71 (33) (1616.1) 53 (1346) (111.1) RS - Same day shipment up to 5 pieces 4 Wired for higher voltage 392 WATLOW

27 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # Description Volts kw Ph irc inch Screw Plug (WATROD) 23 W/in 2 3-Steel (3.6 W/cm 2 ) ode Number Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim LS717E3S RS 24 (11) (881) (572) (419) LS717E5S RS 24 (11) (881) (572) (419) LS724N3S RS 27 (13) (881) (572) (419) LS724N5S RS 27 (13) (881) (572) (419) LS732E3S RS 29 (14) (1135) (1129) (673) LS732E5S RS 29 (14) (1135) (1129) (673) LS739N3S RS 31 (14) (1453) 45 (1143) 39 (991) LS739N5S RS 31 (14) (1453) 45 (1143) 39 (991) LS747E3S RS 32 (15) (1453) 45 (1143) 39 (991) LS747E5S RS 32 (15) (1453) 45 (1143) 39 (991) inch Screw Plug (FIREAR) 30 W/in LNF1512S RS 22 (10) (881) (572) (419) LNF1513S RS 22 (10) (881) (572) (419) 3-Incoloy LNF1812S RS 23 (11) 34 4 (881) (572) (419) (4.7 W/cm 2 ) LNF1813S RS 23 (11) (881) (572) (419) LNF2312S RS 31 (14) (881) (572) (419) LNF2313S RS 31 (14) (881) (572) (419) LNF28L12S RS 34 (16) (1135) (1129) (673) LNF28L13S RS 34 (16) (1135) (1129) (673) LNF33L12S RS 35 (16) (1135) (1129) (673) LNF33L13S RS 35 (16) (1135) (1129) (673) LNF4412S RS 44 (20) (1453) 45 (1143) 39 (991) LNF4413S RS 44 (20) (1453) 45 (1143) 39 (991) LNF54L13S RS 52 (24) (1618) (1308) (1181) inch Screw Plug in. Ref. (182.6 mm) in. (284.2 mm) in. (125.4 mm) UN 1in. Inlet Ref in. (142.9 mm) 43 8 in. (111.1 mm) 31 8 in. (79.4 mm) inch Screw Plug (FIREAR) 23 W/in LNF1520S RS 22 (10) (881) (572) (419) LNF1820S RS 23 (11) (881) (572) (419) 3-Incoloy LNF2320S RS 31 (14) 34 (3.6 W/cm 2 ) 4 (881) (572) (419) LNF2319S RS 31 (14) (881) (572) (419) LNF28L20S RS 34 (16) (1135) (1129) (673) LNF28L19S RS 34 (16) (1135) (1129) (673) LNF33L20S RS 35 (16) (1135) (1129) (673) LNF33L19S RS 35 (16) (1135) (1129) (673) LNF4420S RS 44 (20) (1453) 45 (1143) 39 (991) LNF4419S RS 44 (20) (1453) 45 (1143) 39 (991) LNF54L20S RS 52 (24) (1618) (1308) (1181) LNF54L19S RS 52 (24) (1618) (1308) (1181) 3 Wired for 3-phase operation only 8 an be wired for 1-phase operation RS - Same day shipment up to 5 pieces WATLOW 393

28 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Description Volts kw Ph irc. Number 3 inch lb ANSI Flange (WATROD) 23 W/in 2 3-Steel (3.6 W/cm 2 ) Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FMS718A10S RS 68 (31) (894) (573) (419) FMS718A3S RS 68 (31) (894) (573) (419) FMS718A11S RS 68 (31) (894) (573) (419) FMS718A5S RS 68 (31) (894) (573) (419) FMS725J10S RS 78 (36) (894) (573) (419) FMS725J3S RS 78 (36) (894) (573) (419) FMS725J11S RS 78 (36) (894) (573) (419) FMS725J5S RS 78 (36) (894) (573) (419) FMS733A10S RS 96 (44) (1148) (826) (673) FMS733A3S RS 96 (44) (1148) (826) (673) FMS733A11S RS 96 (44) (1148) (826) (673) FMS733A5S RS 96 (44) (1148) (826) (673) FMS740J10S RS 100 (46) (1465) 45 (1143) 39 (991) FMS740J3S RS 100 (46) (1465) 45 (1143) 39 (991) FMS740J11S RS 100 (46) (1465) 45 (1143) 39 (991) FMS740J5S RS 100 (46) (1465) 45 (1143) 39 (991) FMS748A10S RS 107 (49) (1465) 45 (1143) 39 (991) FMS748A3S RS 107 (49) (1465) 45 (1143) 39 (991) FMS748A11S RS 107 (49) (1465) 45 (1143) 39 (991) FMS748A5S RS 107 (49) (1465) 45 (1143) 39 (991) 4 inch lb ANSI Flange (WATROD) 23 W/in FOS718A10S RS 125 (57) 39 (989) (521) 17 (432) FOS718A3S RS 125 (57) 39 (989) (521) 17 (432) 6-Steel FOS718A11S RS 125 (57) 39 (989) (521) 17 (432) FOS718A5S RS 125 (57) 39 (989) (521) 17 (432) (3.6 W/cm 2 ) FOS725J10S RS 160 (73) 39 (989) (521) 17 (432) FOS725J3S RS 160 (73) 39 (989) (521) 17 (432) FOS725J11S RS 160 (73) 39 (989) (521) 17 (432) FOS725J5S RS 160 (73) 39 (989) (521) 17 (432) FOS733A10S RS 163 (74) (1256) 31 (787) (699) FOS733A3S RS 163 (74) (1256) 31 (787) (699) FOS733A11S RS 163 (74) (1256) 31 (787) (699) FOS733A5S RS 163 (74) (1256) 31 (787) (699) FOS740J10S RS 229 (104) (1789) 52 (1321) (1232) FOS740J3S RS 229 (104) (1789) 52 (1321) (1232) FOS740J11S RS 229 (104) (1789) 52 (1321) (1232) FOS740J5S RS 229 (104) (1789) 52 (1321) (1232) FOS748A10S RS 234 (107) (1789) 52 (1321) (1232) FOS748A3S RS 234 (107) (1789) 52 (1321) (1232) FOS748A11S RS 234 (107) (1789) 52 (1321) (1232) FOS748A5S RS 234 (107) (1789) 52 (1321) (1232) FOS764J3S RS 298 (136) (2326) 73 (1854) 66 (1676) FOS764J11S RS 298 (136) (2326) 73 (1854) 66 (1676) FOS764J5S RS 298 (136) (2326) 73 (1854) 66 (1676) FOS777A3S RS 306 (139) (2326) 73 (1854) 66 (1676) FOS777A11S RS 306 (139) (2326) 73 (1854) 66 (1676) FOS777A5S RS 306 (139) (2326) 73 (1854) 66 (1676) RS - Same day shipment up to 5 pieces 3 inch lb ANSI Flange 11 Ref. (292 mm) 55 8 in. Ref. (142.9 mm) 394 WATLOW in. Ref. (195.3 mm) 1in. Inlet & Outlet UN 31 8 in. Dia. (79.4 mm) Ref. 1 ARef. Inlet UN 43 8 in. (111.1 mm) 4 inch lb ANSI Flange in. Ref. (320.7 mm) in. (93.7 mm) in. (147.6 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm)

29 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # Description Volts kw Ph irc. 4 inch lb ANSI Flange (FIREAR) 30 W/in 2 6-Incoloy (4.7 W/cm 2 ) ode Number Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FONF16J12S RS 128 (58) 39 (989) (521) 17 (432) FONF16J13S RS 128 (58) 39 (989) (521) 17 (432) FONF19J12S RS 130 (59) 39 (989) (521) 17 (432) FONF19J13S RS 130 (59) 39 (989) (521) 17 (432) FONF24J12S RS 133 (61) 39 (989) (521) 17 (432) FONF24J13S RS 133 (61) 39 (989) (521) 17 (432) FONF30A12S RS 168 (77) (1256) 31 (787) (699) FONF30A13S RS 168 (77) (1256) 31 (787) (699) FONF35A12S RS 170 (78) (1256) 31 (787) (699) FONF35A13S RS 170 (78) (1256) 31 (787) (699) FONF45J12S RS 236 (107) (1789) 52 (1321) (1232) FONF45J13S RS 236 (107) (1789) 52 (1321) (1232) FONF56A13S RS 240 (109) (1789) 52 (1321) (1232) 4 inch lb ANSI Flange (FIREAR) 23 W/in 2 6-Incoloy (3.6 W/cm 2 ) FONF16J20S RS 128 (58) 39 (989) (521) 17 (432) FONF19J20S RS 130 (59) 39 (989) (521) 17 (432) FONF24J20S RS 133 (61) 39 (989) (521) 17 (432) FONF24J19S RS 133 (61) 39 (989) (521) 17 (432) FONF30A20S RS 168 (77) (1256) 31 (787) (699) FONF30A19S RS 168 (77) (1256) 31 (787) (699) FONF35A20S RS 170 (78) (1256) 31 (787) (699) FONF35A19S RS 170 (78) (1256) 31 (787) (699) FONF45J20S RS 236 (107) (1789) 52 (1321) (1232) FONF45J19S RS 236 (107) (1789) 52 (1321) (1232) FONF56A20S RS 240 (109) (1789) 52 (1321) (1232) FONF56A19S RS 240 (109) (1789) 52 (1321) (1232) 5 inch lb ANSI Flange (WATROD) 23 W/in 2 6-Steel (3.6 W/cm 2 ) FNS733A10S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNS733A3S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNS733A11S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNS733A5S RS 145 (66) (1427.0) 37 (940.0) (473.1) FNS740J10S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNS740J3S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNS740J11S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNS740J5S RS 167 (76) (1427.0) 37 (940.0) (473.1) FNS748A10S RS 180 (82) (1719.0) (1232.0) (473.1) FNS748A3S RS 180 (82) (1719.0) (1232.0) (473.1) FNS748A11S RS 180 (82) (1719.0) (1232.0) (473.1) FNS748A5S RS 180 (82) (1719.0) (1232.0) (473.1) FNS764J3S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNS764J11S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNS764J5S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNS777A3S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) FNS777A11S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) FNS777A5S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) RS - Same day shipment up to 5 pieces 4 inch lb ANSI Flange 1 ARef. Inlet UN in. Ref. (320.7 mm) in. (93.7 mm) in. Ref. (320.7 mm) UN 4¼ in. (108 mm) in. (147.6 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm) 5 inch lb ANSI Flange 2in. Inlet in. Ref. (141.3 mm) 25 in. (635 mm) 75 8 in. (193.7 mm) WATLOW 395

30 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Description Volts kw Ph irc. Number 5 inch lb ANSI Flange (WATROD) 23 W/in 2 9-Steel (3.6 W/cm 2 ) Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FNS733A10XS RS 150 (68) (1427.0) 37 (940.0) (471.1) FNS733A3XS RS 150 (68) (1427.0) 37 (940.0) (471.1) FNS733A11XS RS 150 (68) (1427.0) 37 (940.0) (471.1) FNS733A5XS RS 150 (68) (1427.0) 37 (940.0) (471.1) FNS740J10XS RS 173 (79) (1427.0) 37 (940.0) (471.1) FNS740J3XS RS 173 (79) (1427.0) 37 (940.0) (471.1) FNS740J11XS RS 173 (79) (1427.0) 37 (940.0) (471.1) FNS740J5XS RS 173 (79) (1427.0) 37 (940.0) (471.1) FNS748A10XS RS 188 (86) (1719.0) (1232.0) 25 (633.0) FNS748A3XS RS 188 (86) (1719.0) (1232.0) 25 (633.0) FNS748A11XS RS 188 (86) (1719.0) (1232.0) 25 (633.0) FNS748A5XS RS 188 (86) (1719.0) (1232.0) 25 (633.0) FNS764J3XS RS 206 (94) (2060.6) (1571.6) 25 (633.0) FNS764J11XS RS 206 (94) (2060.6) (1571.6) 25 (633.0) FNS764J5XS RS 206 (94) (2060.6) (1571.6) 25 (633.0) FNS777A3XS RS 233 (106) (2390.8) 75 (1902.0) 25 (633.0) FNS777A11XS RS 233 (106) (2390.8) 75 (1902.0) 25 (633.0) FNS777A5XS RS 233 (106) (2390.8) 75 (1902.0) 25 (633.0) 6 inch lb ANSI Flange (WATROD) 23 W/in FPS717R10S RS 214 (97) (1027) (521) 17 (432) FPS717R3S RS 214 (97) (1027) (521) 17 (432) 12-Steel FPS717R11S RS 214 (97) (1027) (521) 17 (432) FPS717R5S RS 214 (97) (1027) (521) 17 (432) (3.6 W/cm 2 ) FPS725G10S RS 222 (101) (1027) (521) 17 (432) FPS725G3S RS 222 (101) (1027) (521) 17 (432) FPS725G11S RS 222 (101) (1027) (521) 17 (432) FPS725G5S RS 222 (101) (1027) (521) 17 (432) FPS732R10S RS 226 (103) 51 (1294) 31 (787) (699) FPS732R3S RS 226 (103) 51 (1294) 31 (787) (699) FPS732R11S RS 226 (103) 51 (1294) 31 (787) (699) FPS732R5S RS 226 (103) 51 (1294) 31 (787) (699) FPS740G10S RS 290 (132) 72 (1827) 52 (1321) (1232) FPS740G3S RS 290 (132) 72 (1827) 52 (1321) (1232) FPS740G11S RS 290 (132) 72 (1827) 52 (1321) (1232) FPS740G5S RS 290 (132) 72 (1827) 52 (1321) (1232) FPS747R10S RS 298 (136) 72 (1827) 52 (1321) (1232) FPS747R3S RS 298 (136) 72 (1827) 52 (1321) (1232) FPS747R11S RS 298 (136) 72 (1827) 52 (1321) (1232) FPS747R5S RS 298 (136) 72 (1827) 52 (1321) (1232) FPS764G3S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPS764G11S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPS764G5S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPS776R3S RS 368 (167) 93 (2361) 73 (1854) 66 (1676) FPS776R11S RS 368 (167) 93 (2361) 73 (1854) 66 (1676) FPS776R5S RS 368 (167) 93 (2361) 73 (1854) 66 (1676) RS - Same day shipment up to 5 pieces 5 inch lb ANSI Flange in. Ref. (320.7 mm) 2 in. Inlet UN ARef. 4¼ in. (108 mm) 2 Inlet in. Ref. (141.3 mm) 6 inch lb ANSI Flange in. Ref. (322.3 mm) ¾-10 UN 2 4¾ in. (121 mm) 75 8 in. (193.7 mm) 65 8 in. Ref. (168.3 mm) 396 WATLOW 25 in. (635 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm)

31 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements Description Volts kw # Ph irc. ode Number 6 inch lb ANSI Flange (WATROD) 23 W/in 2 15-Steel (3.6 W/cm 2 ) Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FPS717R10XS RS 217 (99) (1027) (521) 17 (432) FPS717R3XS RS 217 (99) (1027) (521) 17 (432) FPS717R11XS RS 217 (99) (1027) (521) 17 (432) FPS717R5XS RS 217 (99) (1027) (521) 17 (432) FPS725G10XS RS 222 (101) (1027) (521) 17 (432) FPS725G3XS RS 222 (101) (1027) (521) 17 (432) FPS725G11XS RS 222 (101) (1027) (521) 17 (432) FPS725G5XS RS 222 (101) (1027) (521) 17 (432) FPS732R10XS RS 226 (103) 51 (1294) 31 (787) (699) FPS732R3XS RS 226 (103) 51 (1294) 31 (787) (699) FPS732R11XS RS 226 (103) 51 (1294) 31 (787) (699) FPS732R5XS RS 226 (103) 51 (1294) 31 (787) (699) FPS740G10XS RS 290 (132) 72 (1827) 52 (1321) (1232) FPS740G3XS RS 290 (132) 72 (1827) 52 (1321) (1232) FPS740G11XS RS 290 (132) 72 (1827) 52 (1321) (1232) FPS740G5XS RS 290 (132) 72 (1827) 52 (1321) (1232) FPS747R10XS RS 298 (136) 72 (1827) 52 (1321) (1232) FPS747R3XS RS 298 (136) 72 (1827) 52 (1321) (1232) FPS747R11XS RS 298 (136) 72 (1827) 52 (1321) (1232) FPS747R5XS RS 298 (136) 72 (1827) 52 (1321) (1232) FPS764G3XS RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPS764G11XS RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPS764G5XS RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPS776R3XS RS 368 (167) 93 (2361) 73 (1854) 66 (1676) FPS776R11XS RS 368 (167) 93 (2361) 73 (1854) 66 (1676) FPS776R5XS RS 368 (167) 93 (2361) 73 (1854) 66 (1676) 6 inch lb ANSI Flange in. Ref. (322.3 mm) 2 Inlet ¾-10 UN 2 4¾ in. (121 mm) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 6 inch lb ANSI Flange (FIREAR) 30 W/in FPNF16J12S RS 220 (100) (1027) (521) 17 (432) FPNF16J13S RS 220 (100) (1027) (521) 17 (432) 15-Incoloy FPNF19J12S RS 223 (102) 40 2 (1027) (521) 17 (432) (4.7 W/cm 2 ) FPNF19J13S RS 223 (102) (1027) (521) 17 (432) FPNF24J12S RS 226 (103) (1027) (521) 17 (432) FPNF24J13S RS 226 (103) (1027) (521) 17 (432) FPNF30A12S RS 232 (106) 51 (1294) 31 (787) (699) FPNF30A13S RS 232 (106) 51 (1294) 31 (787) (699) FPNF35A12S RS 236 (107) 51 (1294) 31 (787) (699) FPNF35A13S RS 236 (107) 51 (1294) 31 (787) (699) FPNF45J12S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF45J13S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF56A13S RS 314 (143) 72 (1827) 52 (1321) (1232) 3 Wired for 3-phase operation only RS - Same day shipment up to 2 pieces WATLOW 397

32 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 6 inch lb ANSI Flange (FIREAR) 23 W/in FPNF16J20S RS 220 (100) (1027) (521) 17 (432) FPNF19J20S RS 223 (102) Incoloy 2 (1027) (521) 17 (432) (3.6 W/cm 2 ) FPNF24J20S RS 226 (103) (1027) (521) 17 (432) FPNF24J19S RS 226 (103) (1027) (521) 17 (432) FPNF30A20S RS 232 (106) 51 (1294) 31 (787) (699) FPNF30A19S RS 232 (106) 51 (1294) 31 (787) (699) FPNF35A20S RS 236 (107) 51 (1294) 31 (787) (699) FPNF35A19S RS 236 (107) 51 (1294) 31 (787) (699) FPNF45J20S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF45J19S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF56A20S RS 314 (143) 72 (1827) 52 (1321) (1232) FPNF56A19S RS 314 (143) 72 (1827) 52 (1321) (1232) RS - Next day shipment up to 2 pieces 6 inch lb ANSI Flange in. Ref. (322.3 mm) 2 Inlet ¾-10 UN 2 8 inch lb ANSI Flange (WATROD) 23 W/in FRS732N10S RS 370 (168) (1402.0) (830.0) (741.0) 4¾ in. (121 mm) FRS732N3S RS 370 (168) Steel 4 (1402.0) (830.0) (741.0) FRS732N11S RS 370 (168) (1402.0) (830.0) (741.0) (3.6 W/cm 2 ) FRS732N5S RS 370 (168) (1402.0) (830.0) (741.0) 8 inch lb ANSI Flange FRS743E3S RS 410 (186) (1580.0) (1008.0) (919.0) FRS743E11S RS 410 (186) (1580.0) (1008.0) (919.0) FRS743E5S RS 410 (186) (1580.0) (1008.0) (919.0) FRS751M3S RS 440 (200) (1774.8) (1203.3) (1114.4) FRS751M11S RS 440 (200) (1774.8) (1203.3) (1114.4) FRS751M5S RS 440 (200) (1774.8) (1203.3) (1114.4) in. Ref FRS762D3S RS 480 (218) (2016.1) (1444.6) (1355.7) (373.1 mm) FRS762D11S RS 480 (218) (2016.1) (1444.6) (1355.7) 2 ARef FRS762D5S RS 480 (218) (2016.1) (1444.6) (1355.7) Inlet FRS770M3S RS 530 (241) (2244.7) (1673.2) (1584.3) FRS770M11S RS 530 (241) (2244.7) (1673.2) (1584.3) FRS770M5S RS 530 (241) (2244.7) (1673.2) (1584.3) FRS779M3S RS 610 (277) (2498.7) (1927.2) (1838.3) ¾-10 UN FRS779M5S RS 610 (277) (2498.7) (1927.2) (1838.3) 5¾ in. (146 mm) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 75 8 in. (193.7 mm) 14 Ref. (368 mm) 3 (89 mm) 10¾ in. (273 mm) 398 WATLOW

33 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. 8 inch lb ANSI Flange Description Volts kw Ph irc. Number Del. lbs (kg) 8 inch lb ANSI Flange (WATROD) 23 W/in FRS733D10XS RS 382 (174) (1402.0) (830.0) (741.0) FRS733D3XS RS 382 (174) Steel 4 (1402.0) (830.0) (741.0) (3.6 W/cm 2 ) FRS733D11XS RS 382 (174) (1402.0) (830.0) (741.0) FRS733D5XS RS 382 (174) (1402.0) (830.0) (741.0) FRS743M3XS RS 425 (193) (1580.0) (1008.0) (919.0) in. Ref. (373.1 mm) FRS743M11XS RS 425 (193) (1580.0) (1008.0) (919.0) FRS743M5XS RS 425 (193) (1580.0) (1008.0) (919.0) 2 Inlet FRS751M3XS RS 457 (208) (1774.8) (1203.3) (1114.4) FRS751M11XS RS 457 (208) (1774.8) (1203.3) (1114.4) FRS751M5XS RS 457 (208) (1774.8) (1203.3) (1114.4) FRS762D3XS RS 461 (209) (2016.1) (1444.6) (1355.7) ¾-10 UN FRS762D11XS RS 461 (209) (2016.1) (1444.6) (1355.7) FRS762D5XS RS 461 (209) (2016.1) (1444.6) (1355.7) FRS770M3XS RS 554 (252) (2244.7) (1673.2) (1584.3) FRS770M11XS RS 554 (252) (2244.7) (1673.2) (1584.3) 5¾ in FRS770M5XS RS 554 (252) (2244.7) (1673.2) (1584.3) (146 mm) FRS779M3XS RS 636 (289) (2498.7) (1927.2) (1838.3) FRS779M5XS RS 636 (289) (2498.7) (1927.2) (1838.3) RS - Next day shipment up to 2 pieces 75 8 in. (193.7 mm) 14 Ref. (368 mm) 3 (89 mm) 10¾ in. (273 mm) WATLOW 399

34 irculation Heaters WATROD and FIREAR irculation Heaters Application: Lightweight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 10 inch lb ANSI Flange (WATROD) 23 W/in FSS762E5S S 540 (245) (2316.0) (1916.0) (2081.2) FSS770N5S S 600 (645) Steel 8 (2517.8) (2117.7) (2281.2) (3.6 W/cm 2 ) FSS778N5S S 645 (293) (2708.3) (2308.2) (2471.7) 12 inch lb ANSI Flange (WATROD) 23 W/in FTS770L5S S 650 (295) 99 (2515) (2105.0) (2276.5) FTS778L5S S 700 (318) Steel 1 2 (2705) (2295.5) (2467.0) (3.6 W/cm 2 ) 14 inch lb ANSI Flange (WATROD) 23 W/in FWS762A5S S 650 (295) (2305) (1891) (2062.2) FWS770J5S S 700 (318) Steel 4 (2496) 82 (2081) (2252.7) FWS778J5S S 780 (354) (2686) (2272) (2443.2) (3.6 W/cm 2 ) S - 10 day lead time 10 inch lb ANSI Flange 3 in. Flange Inlet & Outlet 11 (292 mm) 15¾ in. Ref. (400 mm) in. (327 mm) 12 (318 mm) in. (328.6 mm) (2) ¾ -10 UN 2 Holes 9 in. Ref. (229 mm) (13 mm) in. (22.2 mm) X 2 in. (51 mm) Slot 12 inch lb ANSI Flange 14 inch lb ANSI Flange 5 in. Flange Inlet & Outlet ARef in. Ref. (411.2 mm) in. (377.8 mm) 14 in. (356 mm) 12 (318 mm) (2) ¾ -10 UN 2 Holes in. Ref. (230.2 mm) (13 mm) 7 8 in. (22.2 mm) X 2in.(51mm)Slot 4 6 in. Flange Inlet & Outlet ARef in. Ref. (414.3 mm) 3 (89 mm) in. (410 mm) 15 in. (381 mm) 11 (292 mm) 12 (318 mm) 9¼ in. Ref. (235 mm) (13 mm) 4 (2) ¾ -10 UN 2 Holes 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot 400 WATLOW

35 irculation Heaters WATROD and FIREAR irculation Heaters Application: Medium Weight Oils and Heat Transfer Oils WATROD or FIREAR elements Description Volts kw # Ph irc inch Screw Plug (FIREAR) 15 W/in Incoloy Element (2.3 W/cm 2 ) ode Number Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim DNF13A29S RS 25 (12) (625.5) 15 (381) (79.4) DNF15J29S RS 26 (12) (625.5) 15 (381) (79.4) DNF18A29S RS 30 (14) (828.7) 23 (584) (79.4) DNF22J29S RS 31 (14) (828.7) 23 (584) (79.4) DNF22J30S RS 31 (14) (828.7) 23 (584) (79.4) DNF27J29S RS 43 (20) (1082.7) 32 (813) (111.1) DNF27J30S RS 43 (20) (1082.7) 32 (813) (111.1) DNF32J29S RS 44 (20) (1082.7) 32 (813) (111.1) DNF32J30S RS 44 (20) (1082.7) 32 (813) (111.1) DNF42A29S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF42A30S RS 69 (32) (1616.1) 53 (1346) (111.1) DNF51J29S RS 71 (33) (1616.1) 53 (1346) (111.1) DNF51J30S RS 71 (33) (1616.1) 53 (1346) (111.1) inch Screw Plug (WATROD) 16 W/in LN717G12S RS 24 (11) (881) (572) (419) LN717G13S RS 24 (11) (881) (572) (419) 3-Incoloy LN719R12S RS 26 (12) 34 4 (881) (572) (419) (2.5 W/cm 2 ) LN719R13S RS 26 (12) (881) (572) (419) LN724R12S RS 27 (13) (881) (572) (419) LN724R13S RS 27 (13) (881) (572) (419) LN732G12S RS 29 (14) (1135) (1129) (673) LN732G13S RS 29 (14) (1135) (1129) (673) LN739R12S RS 31 (14) (1453) 45 (1143) 39 (991) LN739R13S RS 31 (14) (1453) 45 (1143) 39 (991) LN747G12S RS 32 (15) (1453) 45 (1143) 39 (991) LN747G13S RS 32 (15) (1453) 45 (1143) 39 (991) inch Screw Plug (FIREAR) 15 W/in LNF12A29S RS 21 (10) (881) (572) (419) LNF14J29S RS 22 (10) (881) (572) (419) 3-Incoloy LNF17A29S RS 23 (11) 34 (2.3 W/cm 2 ) 4 (881) (572) (419) LNF21J29S RS 31 (14) (881) (572) (419) LNF21J30S RS 31 (14) (881) (572) (419) LNF26J29S RS 34 (16) (1135) (1129) (673) LNF26J30S RS 34 (16) (1135) (1129) (673) LNF31J29S RS 35 (16) (1135) (1129) (673) LNF31J30S RS 35 (16) (1135) (1129) (673) LNF41A29S RS 44 (20) (1453) 45 (1143) 39 (991) LNF41A30S RS 44 (20) (1453) 45 (1143) 39 (991) LNF50J29S RS 52 (24) (1618) (1308) (1181) LNF50J30S RS 52 (24) (1618) (1308) (1181) 3 Wired for 3-phase operation only RS - Same day shipment up to 5 pieces inch Screw Plug in. Ref. (163.5 mm) ¾ in. Inlet Ref. 4 in. (102 mm) 3¾ in. (95 mm) inch Screw Plug 1 in. Inlet in. Ref. (182.6 mm) in. (284.2 mm) in. (125.4 mm) UN Ref in. (142.9 mm) 43 8 in. (111.1 mm) 31 8 in. (79.4 mm) WATLOW 401

36 irculation Heaters WATROD and FIREAR irculation Heaters Application: Medium Weight Oils and Heat Transfer Oils WATROD or FIREAR elements Description Volts kw Ph # irc. 3 inch lb ANSI Flange (WATROD) 16 W/in Incoloy Element (2.6 W/cm 2 ) ode Number Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. "" Dim FMN718A12S RS 68 (31) (894) (573) (419) FMN718A13S RS 68 (31) (894) (573) (419) FMN720J12S RS 70 (32) (894) (573) (419) FMN720J13S RS 70 (32) (894) (573) (419) FMN725J12S RS 78 (36) (1148) (826) (673) FMN725J13S RS 78 (36) (1148) (826) (673) FMN733A12S RS 96 (44) (1148) (826) (673) FMN733A13S RS 96 (44) (1148) (826) (673) FMN740J12S RS 100 (46) (1465) 45 (1143) 39 (991) FMN740J13S RS 100 (46) (1465) 45 (1143) 39 (991) FMN748A12S RS 107 (49) (1465) 45 (1143) 39 (991) FMN748A13S RS 107 (49) (1465) 45 (1143) 39 (991) 4 inch lb ANSI Flange (WATROD) 16 W/in FON713J12S RS 122 (56) 39 (989) (521) 17 (432) FON713J13S RS 122 (56) 39 (989) (521) 17 (432) 6-Incoloy FON718A12S RS 125 (57) 39 (989) (521) 17 (432) (2.5 W/cm 2 ) FON718A13S RS 125 (57) 39 (989) (521) 17 (432) FON720J12S RS 127 (58) 39 (989) (521) 17 (432) FON720J13S RS 127 (58) 39 (989) (521) 17 (432) FON725J12S RS 160 (73) 39 (989) (521) 17 (432) FON725J13S RS 160 (73) 39 (989) (521) 17 (432) FON733A12S RS 163 (74) (1256) 31 (787) (699) FON733A13S RS 163 (74) (1256) 31 (787) (699) FON740J12S RS 229 (104) (1789) 52 (1321) (1232) FON740J13S RS 229 (104) (1789) 52 (1321) (1232) FON748A12S RS 234 (107) (1789) 52 (1321) (1232) FON748A13S RS 234 (107) (1789) 52 (1321) (1232) 4 inch lb ANSI Flange (FIREAR) 15 W/in FONF13G29S RS 125 (57) 39 (989) (521) 17 (432) FONF16A29S RS 128 (58) 39 (989) (521) 17 (432) 6-Incoloy FONF18G29S RS 130 (59) 39 (989) 20 1 (2.3 W/cm 2 2 (521) 17 (432) ) FONF22R29S RS 133 (61) 39 (989) (521) 17 (432) FONF22R30S RS 133 (61) 39 (989) (521) 17 (432) FONF27R29S RS 168 (77) (1256) 31 (787) (699) FONF27R30S RS 168 (77) (1256) 31 (787) (699) FONF32R29S RS 170 (77) (1256) 31 (787) (699) FONF32R30S RS 170 (77) (1256) 31 (787) (699) FONF42G29S RS 236 (107) (1789) 52 (1321) (1232) FONF42G30S RS 236 (107) (1789) 52 (1321) (1232) FONF51R29S RS 240 (109) (1789) 52 (1321) (1232) FONF51R30S RS 240 (109) (1789) 52 (1321) (1232) RS - Same day shipment up to 5 pieces 3 Wired for 3-phase operation only 3 inch lb ANSI Flange 11 Ref. (292 mm) 55 8 in. Ref. (142.9 mm) 402 WATLOW in. Ref. (195.3 mm) 1 in. Inlet & Outlet UN 31 8 in. Dia. (79.4 mm) Ref. 1 Inlet UN 43 8 in. (111.1 mm) 4 inch lb ANSI Flange in. Ref. (320.7 mm) in. (93.7 mm) in. (147.6 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm)

37 irculation Heaters WATROD and FIREAR irculation Heaters Application: Medium Weight Oils and Heat Transfer Oils WATROD or FIREAR elements Description Volts kw Ph # irc. ode Number 5 inch lb ANSI Flange (WATROD) 16 W/in Incoloy Element (2.6 W/cm 2 ) Del. Ship Wt. lbs (kg) "A" Dim. "" Dim FNN733A12S RS 145 (66) (1249) 30 (762) 25 (633.0) FNN733A13S RS 145 (66) (1249) 30 (762) 25 (633.0) FNN740J12S RS 167 (76) (1427) 37 (940) 25 (633.0) FNN740J13S RS 167 (76) (1427) 37 (940) 25 (633.0) FNN748A12S RS 180 (82) (1719) (1232) 25 (633.0) FNN748A13S RS 180 (82) (1719) (1232) 25 (633.0) 5 inch lb ANSI Flange (WATROD) 16 W/in Incoloy Element (2.6 W/cm 2 ) FNN733A12XS RS 150 (68) (1249) 30 (762) 25 (633.0) FNN733A13XS RS 150 (68) (1249) 30 (762) 25 (633.0) FNN740J12XS RS 173 (79) (1427) 37 (940) 25 (633.0) FNN740J13XS RS 173 (79) (1427) 37 (940) 25 (633.0) FNN748A12XS RS 188 (86) (1719) (1232) 25 (633.0) FNN748A13XS RS 188 (86) (1719) (1232) 25 (633.0) 6 inch lb ANSI Flange (WATROD) 16 W/in Incoloy (2.6 W/cm 2 ) FPN713G12S RS 212 (97) (1027) (521) 17 (432) FPN713G13S RS 212 (97) (1027) (521) 17 (432) FPN717R12S RS 214 (97) (1027) (521) 17 (432) FPN717R13S RS 214 (97) (1027) (521) 17 (432) FPN720G12S RS 217 (99) (1027) (521) 17 (432) FPN720G13S RS 217 (99) (1027) (521) 17 (432) FPN725G12S RS 222 (101) (1027) (521) 17 (432) FPN725G13S RS 222 (101) (1027) (521) 17 (432) FPN732R12S RS 226 (103) 51 (1294) 31 (787) (699) FPN732R13S RS 226 (103) 51 (1294) 31 (787) (699) FPN740G12S RS 290 (132) 72 (1827) 52 (1321) (1232) FPN740G13S RS 290 (132) 72 (1827) 52 (1321) (1232) FPN747R12S RS 298 (136) 72 (1827) 52 (1321) (1232) FPN747R13S RS 298 (136) 72 (1827) 52 (1321) (1232) 6 inch lb ANSI Flange (WATROD) 16 W/in FPN713G12XS RS 215 (98) (1027) (521) 17 (432) FPN713G13XS RS 215 (98) (1027) (521) 17 (432) 15-Incoloy FPN717R12XS RS 217 (99) (1027) (521) 17 (432) (2.6 W/cm 2 ) FPN717R13XS RS 217 (99) (1027) (521) 17 (432) FPN720G12XS RS 223 (102) (1027) (521) 17 (432) FPN720G13XS RS 223 (102) (1027) (521) 17 (432) FPN725G12XS RS 226 (103) (1027) (521) 17 (432) FPN725G13XS RS 226 (103) (1027) (521) 17 (432) FPN732R12XS RS 288 (131) 51 (1294) 31 (787) (699) FPN732R13XS RS 288 (131) 51 (1294) 31 (787) (699) FPN740G12XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPN740G13XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPN747R12XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPN747R13XS RS 306 (139) 72 (1827) 52 (1321) (1232) RS - Same day shipment up to 5 pieces 3 Wired for 3-phase operation only "" Dim. 5 inch lb ANSI Flange in. Ref. (320.7 mm) 2 in. Inlet UN 4¼ in. (108 mm) 2 Inlet in. Ref. (141.3 mm) 25 in. (635 mm) 75 8 in. (193.7 mm) 6 inch lb ANSI Flange in. Ref. (322.3 mm) ¾-10 UN 2 4¾ in. (121 mm) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) WATLOW 403

38 irculation Heaters WATROD and FIREAR irculation Heaters Application: Medium Weight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. 6 inch lb ANSI Flange Description Volts kw Ph irc. Number Del. lbs (kg) 6 inch lb ANSI Flange (FIREAR) 15 W/in FPNF13G29S RS 217 (99) (1027) (521) 17 (432) FPNF16A29S RS 220 (100) Incoloy 2 (1027) (521) 17 (432) Element FPNF18G29S RS 223 (102) (1027) (521) 17 (432) (2.3 W/cm 2 ) FPNF22R29S RS 226 (103) (1027) (521) 17 (432) in. Ref. (322.3 mm) FPNF22R30S RS 226 (103) (1027) (521) 17 (432) FPNF27R29S RS 232 (106) 51 (1294) 31 (787) (699) FPNF27R30S RS 232 (106) 51 (1294) 31 (787) (699) Inlet FPNF32R29S RS 236 (107) 51 (1294) 31 (787) (699) FPNF32R30S RS 236 (107) 51 (1294) 31 (787) (699) FPNF42G29S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF42G30S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF51R29S RS 314 (143) 72 (1827) 52 (1321) (1232) FPNF51R30S RS 314 (143) 72 (1827) 52 (1321) (1232) ¾-10 UN 2 8 inch lb ANSI Flange (WATROD) 16 W/in FRN725N12S RS 350 (159) (1402.0) (830.0) (741.0) FRN725N13S RS 350 (159) Incoloy 4 (1402.0) (830.0) (741.0) Element FRN735N12S RS 380 (173) (1580.0) (1008.0) (919.0) (2.6 W/cm 2 ) FRN735N13S RS 380 (173) (1580.0) (1008.0) (919.0) FRN744E12S RS 410 (186) (1774.8) (1203.3) (1114.4) FRN744E13S RS 410 (186) (1774.8) (1203.3) (1114.4) FRN754M12S RS 445 (202) (2016.1) (1444.6) (1355.7) FRN754M13S RS 445 (202) (2016.1) (1444.6) (1355.7) FRN763M13S RS 490 (223) (2244.7) (1673.2) (1584.3) FRN773D13S RS 530 (241) (2498.7) (1927.2) (1838.3) FRN782M13S RS 560 (254) (2498.7) (1927.2) (1838.3) 8 inch lb ANSI Flange (WATROD) 16 W/in FRN726D12XS RS 358 (163) (1402.0) (830.0) (741.0) FRN726D13XS RS 358 (163) Incoloy 4 (1402.0) (830.0) (741.0) FRN736D12XS RS 392 (178) (1580.0) (1008.0) (919.0) (2.6 W/cm 2 ) FRN736D13XS RS 392 (178) (1580.0) (1008.0) (919.0) FRN744M12XS RS 425 (193) (1774.8) (1203.3) (1114.4) FRN744M13XS RS 425 (193) (1774.8) (1203.3) (1114.4) FRN754M12XS RS 463 (210) (2016.1) (1444.6) (1355.7) FRN754M13XS RS 463 (210) (2016.1) (1444.6) (1355.7) FRN763M13XS RS 511 (232) (2244.7) (1673.2) (1584.3) FRN773D13XS RS 554 (252) (2498.7) (1927.2) (1838.3) FRN782M13XS RS 587 (267) (2498.7) (1927.2) (1838.3) RS - Next day shipment up to 2 pieces 3 Wired for 3-phase operation only 4¾ in. (121 mm) in. Ref. (373.1 mm) ¾-10 UN 2 2 Inlet 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 3 (89 mm) 8¾ in. (222 mm) 8 inch lb ANSI Flange 75 8 in. (193.7 mm) 5¾ in. (146 mm) 14 Ref. (368 mm) 3 (89 mm) 10¾ in. (273 mm) 404 WATLOW

39 irculation Heaters WATROD and FIREAR irculation Heaters Application: Medium Weight Oils and Heat Transfer Oils WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 10 inch lb ANSI Flange (WATROD) 16 W/in FSN763N13S S 540 (245) (2316) (1916) (2081) FSN773E13S S 600 (273) Incoloy 9 16 (2707) (1037) (2471) (2.6 W/cm 2 ) 12 inch lb ANSI Flange (WATROD) 16 W/in Incoloy (2.6 W/cm 2 ) FTN77313S S 650 (295) (2705) (2295.5) (2468.6) 14 inch lb ANSI Flange (WATROD) 16 W/in FWN754J13S S 600 (273) (2115) 67 (1700) (1872) FWN763J13S S 650 (295) Incoloy 3 4 (2305) (1891) (2062) (2.6 W/cm 2 ) S - 10 day lead time 3 Wired for 3-phase operation only 10 inch lb ANSI Flange 3 in. Flange Inlet & Outlet 11 (292 mm) 15¾ in. Ref. (400 mm) in. (327 mm) in. (328.6 mm) (2) ¾ -10 UN 2 Holes 9 in. Ref. (229 mm) (13 mm) in. (22.2 mm) X 2 in. (51 mm) Slot 12 inch lb ANSI Flange 14 inch lb ANSI Flange 5 in. Flange Inlet & Outlet ARef in. Ref. (411.2 mm) in. (377.8 mm) 14 in. (356 mm) (2) ¾ -10 UN 2 Holes in. Ref. (230.2 mm) (13 mm) 7 8 in. (22.2 mm) X 2in.(51mm)Slot 4 6 in. Flange Inlet & Outlet in. Ref. (414.3 mm) 3 (89 mm) in. (410 mm) 15 in. (381 mm) 11 (292 mm) 9¼ in. Ref. (235 mm) (13 mm) 4 (2) ¾ -10 UN 2 Holes 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot 12 (318 mm) 12 (318 mm) 12 (318 mm) WATLOW 405

40 irculation Heaters WATROD and FIREAR irculation Heaters Application: unker, Asphalt and #6 Fuel Oil WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (FIREAR) 8 W/in DNF16G22S RS 26 (12) (625.5) 15 (381) (79.4) DNF19G22S RS 30 (14) 32 1-Incoloy 8 (828.7) 23 (584) (79.4) DNF24L22S RS 31 (14) (828.7) 23 (584) (79.4) (1.3 W/cm 2 ) DNF24L21S RS 31 (14) (828.7) 23 (584) (79.4) DNF29R22S RS 43 (20) (1082.7) 32 (813) (111.1) DNF29R21S RS 43 (20) (1082.7) 32 (813) (111.1) DNF34R22S RS 44 (20) (1082.7) 32 (813) (111.1) DNF34R21S RS 44 (20) (1082.7) 32 (813) (111.1) DNF45G22S RS 69 (31) (1616.1) 53 (1346) (111.1) DNF45G21S RS 69 (31) (1616.1) 53 (1346) (111.1) DNF55R22S RS 71 (32) (1616.1) 53 (1346) (111.1) DNF55R21S RS 71 (32) (1616.1) 53 (1346) (111.1) inch Screw Plug (WATROD) 8 W/in LS732E12S RS 29 (14) (1135) (1129) (673) LS732E13S RS 29 (14) 44 3-Steel 4 (1135) (1129) (673) LS747E12S RS 32 (15) (1453) 45 (1143) 39 (991) (1.3 W/cm 2 ) LS747E13S RS 32 (15) (1453) 45 (1143) 39 (991) RS - Same day shipment up to 5 pieces 3 Wired for 3-phase operation only inch Screw Plug in. Ref. (163.5 mm) ¾ in. Inlet Ref. 4 in. (102 mm) 3¾ in. (95 mm) inch Screw Plug 1 in. Inlet in. Ref. (182.6 mm) in. (284.2 mm) ARef in. (125.4 mm) UN Ref in. (142.9 mm) 31 8 in. (79.4 mm) 43 8 in. (111.1 mm) 406 WATLOW

41 irculation Heaters WATROD and FIREAR irculation Heaters Application: unker, Asphalt and #6 Fuel Oil WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim inch Screw Plug Description Volts kw Ph irc. Number Del. lbs (kg) inch Screw Plug (FIREAR) 8 W/in LNF1522S RS 22 (10) (881) (572) (419) LNF1822S RS 23 (10) Incoloy 4 (881) (572) (419) 1 in LNF2322S RS 31 (14) (881) (572) (419) Inlet (1.3 W/cm 2 ) LNF2321S RS 31 (14) (881) (572) (419) LNF28L22S RS 34 (15) (1135) (1129) (673) LNF28L21S RS 34 (15) (1135) (1129) (673) LNF33L22S RS 35 (16) (1135) (1129) (673) LNF33L21S RS 35 (16) (1135) (1129) (673) LNF4422S RS 44 (20) (1453) 45 (1143) 39 (991) LNF4421S RS 44 (20) (1453) 45 (1143) 39 (991) in LNF54L22S RS 52 (24) (1453) (1308) (1181) (125.4 mm) LNF54L21S RS 52 (24) (1453) (1308) (1181) 3 inch lb ANSI Flange (WATROD) 8 W/in FMS733A12S RS 96 (44) (1148) (826) (673) FMS733A13S RS 96 (44) (1148) (826) (673) 3-Steel FMS748A12S RS 107 (49) (1465) 45 (1143) 39 (991) (1.3 W/cm 2 ) FMS748A13S RS 107 (49) (1465) 45 (1143) 39 (991) RS - Same day shipment up to 5 pieces 3 Wired for 3-phase operation only in. Ref. (182.6 mm) in. (284.2 mm) UN ARef. Ref in. (142.9 mm) 43 8 in. (111.1 mm) 31 8 in. (79.4 mm) 3 inch lb ANSI Flange 43 8 in. (111.1 mm) in. Ref. (195.3 mm) 1in. Inlet & Outlet 11 Ref. (292 mm) UN 31 8 in. Dia. (79.4 mm) Ref in. Ref. (142.9 mm) WATLOW 407

42 irculation Heaters WATROD and FIREAR irculation Heaters Application: unker, Asphalt and #6 Fuel Oil WATROD or FIREAR elements Description Volts kw Ph # irc. 4 inch lb ANSI Flange (WATROD) 8 W/in Steel (1.3 W/cm 2 ) ode Number Del. Ship Wt. lbs (kg) "A" Dim. "" Dim. in (mm) "" Dim FOS740J12S RS 229 (104) (1789) 52 (1321) (1232) FOS740J13S RS 229 (104) (1789) 52 (1321) (1232) FOS748A12S RS 234 (106) (1789) 52 (1321) (1232) FOS748A13S RS 234 (106) (1789) 52 (1321) (1232) FOS764J12S RS 298 (135) (2326) 73 (1854) 66 (1676) FOS764J13S RS 298 (135) (2326) 73 (1854) 66 (1676) FOS777A12S RS 306 (139) ) 73 (1854) 66 (1676) FOS777A13S RS 306 (139) (2326) 73 (1854) 66 (1676) 4 inch lb ANSI Flange (FIREAR) 8 W/in Incoloy (1.3 W/cm 2 ) FONF16J22S RS 128 (58) 39 (989) (521) 17 (432) FONF19J22S RS 130 (59) 39 (989) (521) 17 (432) FONF24J22S RS 133 (61) 39 (989) (521) 17 (432) FONF24J21S RS 133 (61) 39 (989) (521) 17 (432) FONF30A22S RS 168 (77) (1256) 31 (787) (699) FONF30A21S RS 168 (77) (1256) 31 (787) (699) FONF35A22S RS 170 (77) (1256) 31 (787) (699) FONF35A21S RS 170 (77) (1256) 31 (787) (699) FONF45J22S RS 236 (107) (1789) 52 (1321) (1232) FONF45J21S RS 236 (107) (1789) 52 (1321) (1232) FONF56A22S RS 240 (109) (1789) 52 (1321) (1232) FONF56A21S RS 240 (109) (1789) 52 (1321) (1232) 5 inch lb ANSI Flange (WATROD) 8 W/in FNS740J12S RS 167 (76) (1427.0) 37 (940.0) 25 (633.0) FNS740J13S RS 167 (76) (1427.0) 37 (940.0) 25 (633.0) 6-Steel FNS748A12S RS 180 (82) (1719.0) (1232.0) 25 (633.0) (1.3 W/cm 2 ) FNS748A13S RS 180 (82) (1719.0) (1232.0) 25 (633.0) FNS764J12S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNS764J13S RS 195 (89) (2060.6) (1571.6) 25 (633.0) FNS777A12S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) FNS777A13S RS 220 (100) (2390.8) 75 (1902.0) 25 (633.0) 5 inch lb ANSI Flange (WATROD) 8 W/in Steel (1.3 W/cm 2 ) FNS740J12XS RS 173 (79) (1427.0) 37 (940.0) 25 (633.0) FNS740J13XS RS 173 (79) (1427.0) 37 (940.0) 25 (633.0) FNS748A12XS RS 188 (86) (1719.0) (1232.0) 25 (633.0) FNS748A13XS RS 188 (86) (1719.0) (1232.0) 25 (633.0) FNS764J12XS RS 206 (94) (2060.6) (1571.6) 25 (633.0) FNS764J13XS RS 206 (94) (2060.6) (1571.6) 25 (633.0) FNS777A12XS RS 233 (106) (2390.8) 75 (1902.0) 25 (633.0) FNS777A13XS RS 233 (106) (2390.8) 75 (1902.0) 25 (633.0) RS - Same day shipment up to 5 pieces 3 Wired for 3-phase operation only 4 inch lb ANSI Flange 1 Inlet UN in. Ref. (320.7 mm) in. (93.7 mm) in. Ref. (320.7 mm) in. (147.6 mm) 5 inch lb ANSI Flange 2in. Inlet UN 4¼ in. (108 mm) in. Ref. (365.1 mm) 65 8 in. (168.3 mm) in. Ref. (141.3 mm) 25 in. (635 mm) 75 8 in. (193.7 mm) 408 WATLOW

43 irculation Heaters WATROD and FIREAR irculation Heaters Application: unker, Asphalt and #6 Fuel Oil WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. 6 inch lb ANSI Flange Description Volts kw Ph irc. Number Del. lbs (kg) 6 inch lb ANSI Flange (WATROD) 8 W/in FPS732R12S RS 226 (103) 51 (1294) 31 (787) (699) FPS732R13S RS 226 (103) 51 (1294) 31 (787) Steel 2 (699) Element FPS740G12S RS 290 (132) 72 (1827) 52 (1321) (1232) (1.3 W/cm 2 ) in. Ref FPS740G13S RS 290 (132) 72 (1827) 52 (1321) (1232) (322.3 mm) FPS747R12S RS 298 (136) 72 (1827) 52 (1321) (1232) FPS747R13S RS 298 (136) 72 (1827) 52 (1321) (1232) 2 Inlet FPS764G12S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) ARef FPS764G13S RS 360 (164) 93 (2361) 73 (1854) 66 (1676) FPS776R13S RS 368 (167) 93 (2361) 73 (1854) 66 (1676) 65 8 in. Ref. (168.3 mm) in. Ref. (366.7 mm) 6 inch lb ANSI Flange (WATROD) 8 W/in FPS732R12XS RS 288 (131) 51 (1294) 31 (787) (699) FPS732R13XS RS 288 (131) 51 (1294) 31 (787) Steel 2 (699) Element FPS740G12XS RS 296 (135) 72 (1827) 52 (1321) (1232) (1.3 W/cm 2 ) FPS740G13XS RS 296 (135) 72 (1827) 52 (1321) (1232) FPS747R12XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPS747R13XS RS 306 (139) 72 (1827) 52 (1321) (1232) FPS764G12XS RS 370 (168) 93 (2361) 73 (1854) 66 (1676) FPS764G13XS RS 370 (168) 93 (2361) 73 (1854) 66 (1676) FPS776R12XS RS 381 (173) 93 (2361) 73 (1854) 66 (1676) FPS776R13XS RS 381 (173) 93 (2361) 73 (1854) 66 (1676) ¾-10 UN 2 4¾ in. (121 mm) 3 (89 mm) 8¾ in. (222 mm) 6 inch lb ANSI Flange (FIREAR) 8 W/in FPNF16J22S RS 220 (100) (1027) (521) 17 (432) FPNF19J22S RS 223 (102) Incoloy 2 (1027) (521) 17 (432) FPNF24J22S RS 226 (103) (1027) (521) 17 (432) (1.3 W/cm 2 ) FPNF24J21S RS 226 (103) (1027) (521) 17 (432) FPNF30A22S RS 232 (106) 51 (1294) 31 (787) (699) FPNF30A21S RS 232 (106) 51 (1294) 31 (787) (699) FPNF35A22S RS 236 (107) 51 (1294) 31 (787) (699) FPNF35A21S RS 236 (107) 51 (1294) 31 (787) (699) FPNF45J22S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF45J21S RS 304 (138) 72 (1827) 52 (1321) (1232) FPNF56A22S RS 314 (143) 72 (1827) 52 (1321) (1232) FPNF56A21S RS 314 (143) 72 (1827) 52 (1321) (1232) RS - Same day shipment up to 2 pieces 3 Wired for 3-phase operation only WATLOW 409

44 irculation Heaters WATROD and FIREAR irculation Heaters Application: unker, Asphalt and #6 Fuel Oil WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 8 inch lb ANSI Flange (WATROD) 8 W/in FRS743E12S RS 410 (186) (1580.0) (1008.0) (919.0) FRS743E13S RS 410 (186) Steel 4 (1580.0) (1008.0) (919.0) FRS751M12S RS 440 (200) (1774.8) (1203.3) (1114.4) (1.3 W/cm 2 ) FRS751M13S RS 440 (200) (1774.8) (1203.3) (1114.4) FRS762D12S RS 480 (218) (2016.1) (1444.6) (1355.7) FRS762D13S RS 480 (218) (2016.1) (1444.6) (1355.7) FRS770M12S RS 530 (241) (2244.7) (1673.2) (1584.3) FRS770M13S RS 530 (241) (2244.7) (1673.2) (1584.3) FRS779M12S RS 610 (277) (2498.7) (1927.2) (1838.3) FRS779M13S RS 610 (277) (2498.7) (1927.2) (1838.3) 8 inch lb ANSI Flange (WATROD) 8 W/in FRS743M12XS RS 425 (193) (1580.0) (1008.0) (919.0) FRS743M13XS RS 425 (193) Steel 4 (1580.0) (1008.0) (919.0) FRS751M12XS RS 457 (208) (1774.8) (1203.3) (1114.4) (1.3 W/cm 2 ) FRS751M13XS RS 457 (208) (1774.8) (1203.3) (1114.4) FRS762D12XS RS 461 (209) (2016.1) (1444.6) (1355.7) FRS762D13XS RS 461 (209) (2016.1) (1444.6) (1355.7) FRS770M12XS RS 554 (252) (2244.7) (1673.2) (1584.3) FRS770M13XS RS 554 (252) (2244.7) (1673.2) (1584.3) FRS779M12XS RS 636 (289) (2498.7) (1927.2) (1838.3) FRS779M13XS RS 636 (289) (2498.7) (1927.2) (1838.3) 10 inch lb ANSI Flange (WATROD) 15¾ in. Ref. 8 W/in FSS762E12S S 540 (245) (2316.0) (1916.0) (2088.0) (400 mm) FSS762E13S S 540 (245) Steel 4 (2316.0) (1916.0) (2088.0) FSS770N12S S 600 (273) (2517.8) (2117.7) (2281.2) (1.3 W/cm 2 ) FSS770N13S S 600 (273) (2517.8) (2117.7) (2281.2) ARef FSS778N12S S 645 (293) (2708.3) (2308.2) (2471.7) FSS778N13S S 645 (293) (2708.3) (2308.2) (2471.7) RS - Next day shipment up to 2 pieces S - 10 day lead time 3 Wired for 3-phase operation only 8 inch lb ANSI Flange ARef. 10 inch lb ANSI Flange 3in. Flange Inlet & Outlet in. Ref. (373.1 mm) ¾-10 UN 2 2 Inlet 5¾ in. (146 mm) 11 (292 mm) in. (327 mm) 75 8 in. (193.7 mm) in. (328.6 mm) (2) ¾ -10 UN 2 Holes 9 in. Ref. (229 mm) (13 mm) 14 Ref. (368 mm) 3 (89 mm) 10¾ in. (273 mm) 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot 4 12 (318 mm) 410 WATLOW

45 irculation Heaters WATROD and FIREAR irculation Heaters Application: unker, Asphalt and #6 Fuel Oil WATROD or FIREAR elements # ode Ship Wt. "A" Dim. "" Dim. "" Dim. Description Volts kw Ph irc. Number Del. lbs (kg) 12 inch lb ANSI Flange (WATROD) 8 W/in FTS770L12S S 700 (318) 99 (2515) (2105.0) (2277) FTS770L13S S 700 (318) 99 (2515) Steel 8 (2105.0) (2277) FTS778L12S S 750 (341) (2705) (2295.5) (2467) (1.3 W/cm 2 ) FTS778L13S S 750 (341) (2705) (2295.5) (2467) 14 inch lb ANSI Flange (WATROD) 8 W/in FWS770J12S S 700 (318) (2496) 82 (2081) (2253) FWS770J13S S 700 (318) Steel 4 (2496) 82 (2081) (2253) FWS778J12S S 780 (354) (2686) (2272) (2443) (1.3 W/cm 2 ) FWS778J13S S 780 (354) (2686) (2272) (2443) S - 10 day lead time 3 Wired for 3-phase operation only 12 inch lb ANSI Flange 14 in. (356 mm) 5 in. Flange Inlet & Outlet (2) ¾ -10 UN 2 Holes 14 inch lb ANSI Flange 6 in. Flange Inlet & Outlet 15 in. (381 mm) (2) ¾ -10 UN 2 Holes in. Ref. (411.2 mm) in. Ref. (230.2 mm) in. Ref. (414.3 mm) 11 (292 mm) 9¼ in. Ref. (235 mm) in. (377.8 mm) (13 mm) 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot 4 3 (89 mm) in. (410 mm) (13 mm) 7 8 in. (22.2 mm) X 2 in. (51 mm) Slot 4 12 (318 mm) 12 (318 mm) WATLOW 411

46 irculation Heaters WATROD and FIREAR irculation Heaters uild-a-ode Ordering Information To order, complete the code number to the right with the information below: Example: FONA18A10 S 5 HJ Stock Plug or ANSI Flange ode Number a Optional Terminal Enclosures 2 S = General purpose enclosure W = Moisture resistant enclosure E = Explosion resistant enclosure = Moisture/explosion resistant enclosure Optional Process Sensor 4 1 = 30 to 110 F (-1 to 43 ), SPST 2 = 30 to 250 F (-1 to 121 ), SPST 3 = 175 to 550 F (79 to 288 ), SPST 4 = 40 to 110 F (-1 to 43 ), DPST 5A = 60 to 250 F (16 to 121 ), DPST (FIREAR) 7A = 100 to 550 F (38 to 288 ), DPST (FIREAR) J = Type J process thermocouple in thermowell K = Type K process thermocouple in thermowell Sheath Limit Sensor 3 HJ = Type J high-limit thermocouple, horizontal mount TJ = Type J high-limit thermocouple, vertical/housing at top J = Type J high-limit thermocouple, vertical/housing at bottom HK = Type K high-limit thermocouple, horizontal mount TK = Type K high-limit thermocouple, vertical/housing at top K = Type K high-limit thermocouple, vertical/housing at bottom aatalog part numbers include optional enclosures and process sensors. To order optional enclosures or sensors, substitute the appropriate suffix. batalog listings include either a general purpose enclosure or moisture/explosion resistant enclosure. Substitute enclosure options are noted. 3Heater orientation is critical to accurate sensing of limit conditioners. Use the appropriate code to indicate heater mounting orientation. 4Thermostat part numbers are shown in the Thermostat hart on page WATLOW

47 irculation Heaters WATROD and FIREAR Heaters ooster Heaters ooster heaters are ideal for circulating applications requiring less kilowatts, including engine preheating. ooster heaters are made from a steel or brass in. screw plug heater and insulated pressure vessel with 1 in. (25 mm) F inlet and outlet. This assembly also contains an integral thermostat. Performance apabilities Watt densities to 60 W/in 2 (9.3 W/cm 2 ) Wattages to 3 kilowatts Voltages to 480VA Steel sheath temperatures to 750 F (400 ) opper sheath temperatures to 350 F (175 ) Features and enefits Dual voltages Simplifies stocking and wiring arbon steel, standard pipe wall vessel Assures compatibility with many applications One inch thick (25 mm) fiberglass thermal insulation rated to 750 F (400 ) Reduces heat loss Steel jacket (shroud) Provides a fully welded and painted shroud to protect thermal insulation Inlet and outlet nozzle connections Includes threaded F connections to meet OEM standards General purpose (NEMA 1) terminal enclosures Protects terminals and thermostat Integral thermostat controls process temperatures from: 60 to 160 F (15 to 70 ) on copper sheath elements and 175 to 550 F (80 to 290 ) on steel sheath elements Minimizes the amount of time that the heater operates while the engine is running Typical Applications Stand by generators Peak power trimming generators Mobile generator sets Earth moving equipment Water heaters Lightweight oils onduit Opening 4 in. (100 mm) O.D. Jacket Insulation 1 in. (25 mm) F Inlet Pipe NEMA 1 Terminal Enclosure with Integral Thermostat 1 in. (25 mm) F Outlet Pipe Vessel WATROD Element WATLOW 413

48 irculation Heaters WATROD and FIREAR Heaters ooster Heaters Options Terminal Enclosure General purpose (NEMA 1) terminal enclosures with integral thermostats are supplied on all Watlow booster heaters. Optional moisture resistant (NEMA 4) terminal enclosures protect wiring and thermostat from liquid contaminants. To order, request the moisture resistant enclosure option. For explosion resistant (NEMA 7) and explosion/moisture resistant (NEMA 7/4) terminal enclosures, request the explosion/moisture resistant option. ode Est. Ship. Number Wt. Description kw Phase 120/240VA lbs (kg) Application: Aqueous Solutions 60 W/in E8G6 18 (8.2) rass Plug E10F6 18 (8.2) 2-opper E12F6 18 (8.2) (9.3 W/cm 2 ) E15A6X 18 (8.2) Application: Lightweight Oils 23 W/in ES7G6 18 (8.2) Steel Plug ES (8.2) 2- Steel ES12P6 18 (8.2) (3.6 W/cm 2 ) For optional housing adders, use circulation heater adders. ¾ in. onduit Opening Removable Terminal over 4 in. (102 mm) Outside Diameter 45 8 in. (117.5 mm) in. (96.8 mm) in. (176.2 mm) 14 in. (356 mm) in. (531.8 mm) Outlet 1 in. (25 mm) F Inlet 1 in. (25 mm) F 414 WATLOW

49 irculation Heaters WATROD and FIREAR Heaters Engine Preheaters Watlow engine preheaters help maintain a desired minimum engine temperature to make starting fast and easy. They also reduce engine wear caused by cold engine starting. Engine preheaters mount conveniently on an engine or rail. The internal thermostat constantly adjusts to ambient temperature changes to keep engine coolant warm at all times. An internal tank temperature sensor protects Watlow engine preheaters from dry fire conditions caused by low coolant levels or blocked flow. Installation is easy with just two mounting bolts and inlet and outlet hose connections. Performance apabilities Watt densities from 45 to 90 W/in 2 (7 to 14 W/cm 2 ) Wattages to 6 kilowatts UL and SA component recognition to 480VA and 600VA respectively. Thermostatically controlled from 60 to 160 F (15 to 70 ) Incoloy sheath temperatures to 1600 F (870 ) Features and enefits Incoloy sheath Minimizes the risk of premature failure in the event of a dry-fire condition Integral, prewired adjustable thermostat mounted in a general purpose (NEMA 1) terminal enclosure Provides a ready to install unit Easy installation with standard 1 in. (25 mm) diameter beaded inlet and outlet nozzles Provides rubber hose connections eliminating the need for threaded fittings and adapters 120/240VA or 240/480VA dual voltages Makes field wiring flexible Minimizes stocking multiple voltages Mounting bracket Isolates harmful engine vibration Heavy-duty welded carbon steel tank Resists corrosion and extends life Optional oil pressure interconnect switch Disrupts power during engine operation Integral check valve Assures proper coolant flow and correct thermostat operation. heck valve will not interfere with adequate thermo-siphoning UL and SA component Recognition under file numbers E52951 and respectively. Typical Applications Stand by generators Primary power generators Firepump engines Options Terminal Enclosure The following terminal enclosures are available: Standard, general purpose (NEMA 1) Moisture resistant (NEMA 4) Explosion resistant (NEMA 7) lass 1, groups, and D. WATLOW 415