Watlow Circulation Heater Data sheet

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

Circulation heaters provide a readymade 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 NPT 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 FIREBAR elements, to deliver fast response and even heat distribution.

Watlow can meet virtually all your circulation heater assembly needs with made-to-order units. Made-toorder 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 Capabilities

• Watt densities to 120 W/in (18.6 W/cm2)

• Wattages to one megawatt

•UL recognition to 480VÅ(ac) and 600VÅ(ac) respectively

• Ratings to 600 lb pressure class

• Incoloy®sheath temperatures to 1600°F (870°C)

• Passivated 316 stainless steel sheath temperatures to 1200°F (650°C)

• Steel sheath temperatures to 750°F (400°C)

• Copper sheath temperatures to 350°F (175°C)

or WATROD heating

and CSA component

Features and Benefits

• Standard screw plugs and flanges feature a wide selection

of WATROD and FIREBAR elements to meet specific application requirements.

Type Sizes (inch) NPT 1

Screw Plugs ANSI flanges 3, 4, 5, 6, 8, 10, 12, 14

⁄4, 21⁄2

• Flange ratings meet recognized agency standards. ANSI B16.5 Class 150 on:

Four or six inch FIREBAR element flanges

Three to 14 inch WATROD element flanges

• FIREBAR assemblies pack more wattage in a smaller heater bundle—replaces larger flanges with round tubular elements, with a smaller package.

• Compacted MgO insulation filled elements maximize dielectric strength, heat transfer and life.

• One inch (25 mm) thermal insulation, rated to 750°F (400°C), reduces heat loss from the vessel.

On stock chart units:

• Five to seven working days on all Assembly Stock heaters

• 10 working days on special voltages and/or wattages

• 15 working days on special element lengths

Flange

Assembly

Threaded

Pipe Outlet

Jacket

1" (25 mm)

Insulation

Threaded Pipe Inlet

Gasket

Mounting

Lugs

Pressure

Vessel

• Heavy-gauge steel jacket (shroud) protects thermal

insulation and heating vessel. Comes with protective primer coating.

• All catalog units rated to ANSI pressure Class 150. Pressure vessels (tanks) are either carbon or 316 stainless steel.

• NPT or ANSI Class 150 nozzle connections make installation easy. Inlet and outlet nozzle connections are:

Threaded MNPT on eight inch and smaller tanks

Class 150 flanged connections on 10 inch and larger tanks

Circulation Heaters

UL®is a registered trademark of Underwriter's Laboratories, Inc.

Incoloy®is a registered trademark of Special Metals Corporation.

367

Tubular and

Ref

Process Assemblies

Circulation Heaters

Features and Benefits

• Mounting lugs are welded onto the tank wall of all 21⁄2 and larger units. Lugs are flush with outer insulation jacket and provide mounting support.

Applications

• Water: Deionized Demineralized Clean Potable Process

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,

inch NPT

• Flange mounting holes straddle centerline to comply with industry standards.

• Standard, general purpose

(NEMA 1) terminal enclosures

offer easy access to terminal wiring.

• Industrial water rinse tanks

• Hydraulic oil, crude, asphalt

• Lubricating oils at API specified watt densities

• Heat transfer oil

refer to pages 322 to 324. For flange terminal enclosures, refer to

pages 340 to 341.

Stand-off Terminal Enclosures

Stand-off terminal enclosures help protect terminal enclosures against excessive temperatures. For details, refer to page 340.

• UL

and CSA component

recognition under file numbers

E52951 and 31388 respectively. See pages 268 to 271 for details.

• Branch circuits are subdivided by National Electric Code (NEC) requirements to a maximum of 48 amps per circuit.

• Paraffin

• Caustic cleaners

• Nitrogen, hydrogen and other air/gas systems

• Superheating steam

CSA Certified Enclosures

To meet agency recognition requirements, CSA certified moisture and/or explosion resistant terminal enclosures are available. Consult your Watlow representative for details.

Thermostats

To provide process temperature control, Watlow offers optional single and double pole thermostats.

Process Thermocouple in Nozzle

(Must specify which nozzle)

Thermostats are typically mounted in the terminal enclosure. Optional side mounting on vessel also available.

Thermocouples

To sense process or element sheath temperature, ASTM Type J or K thermocouples are available.

Ref. Ref. Dimension

Tank Size Nozzle Size "A"

⁄4 2 1⁄2 3 1 NPT 8 3⁄16 41 5 2 NPT 11 1⁄16 62 82

For 10 inch and larger tanks consult factory for dimension.

⁄4 NPT 8 3⁄16

1 NPT 8

⁄2 NPT 10 3⁄8

⁄2 NPT 13 3⁄8

⁄2 NPT 14 3⁄8

See Screw Plug Immersion

Heaters, page 324, and Flange Immersion Heaters, on page 342

for details.

See Screw Plug Immersion

Heaters, page 325 and Flange Immersion Heaters, on page 342

for details.

⁄16

368

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

Options

Continued

Branch Circuits

Branch circuits are subdivided by National Electrical Code (NEC) requirements to a maximum of

Wattages and Voltages

Watlow routinely supplies circulation heaters with 120 to 480VÅ(ac) as well as wattages from 500 watts to one megawatt. If required, Watlow will configure circulation heaters

48 amps per circuit. Consult factory for circuit requirements other than those listed in the stock charts.

with voltages and wattages outside these parameters.

For more information on special voltage and wattage configurations, consult your Watlow representative.

Circulation Heaters

Sheath Materials

The following sheath materials are available on WATROD and FIREBAR heating elements:

Baffles

Direction of Flow

Pressure Vessels

All standard pressure vessel (tank) materials are rated to 150 lb and made from:

• Carbon steel

• 316 stainless steel All catalog pressure vessels (tanks)

are steel unless otherwise noted.

Standard Sheath Materials

WATROD Incoloy

FIREBAR Incoloy

316 stainless steel Steel Copper

Baffles mounted on the heating element bundle enhance and/or modify liquid or gas flow for better heat transfer.

316 stainless steel pressure vessels (tanks) are passivated on all wetted surfaces. Available from Assembly Stock on 2

⁄2 inch NPT and four or six inch ANSI flange circulation heaters.

Made-to-order units can be made in a variety of materials, flange sizes and pressure classes.

Made-to-Order Sheath Materials

WATROD 304 stainless steel

FIREBAR 304 stainless steel

Monel

Exotic Sheath Materials

Consult your Watlow representative for details and availability.

For critical sheath temperature and low flow conditions, baffles may be required.

Consult your Watlow representative for details.

To order, specify pressure

vessel (tank) size, material and pressure class.

ANSI ratings to 600 lb are available for high-pressure applications. For pressure class ratings above 600 lb, as well as other vessel materials, consult Watlow Process Systems in Troy, Missouri.

Monel®is a registered trademark of Special Metals Corporation.

Passivated Finish

For critical applications, passivation will remove free iron from all wetted surfaces.

Consult factory for details.

369

Tubular and Process Assemblies

Circulation Heaters

Options

ontinued

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.

and Outlet Nozzle Connections

Inlet

All inlet and outlet materials are compatible with the pressure vessel material and pressure class rating.

Vessel sizes from 11⁄4 to eight inches are typically configured with MNPT (Male National Pipe Thread) nozzles. Optional NPT and flange sizes can be supplied to mate with existing piping.

To order, specify gasket type,

flange size/rating and process operating temperature.

For details on gasket materials and temperature ratings, see page 343.

10 inch and larger vessels are supplied with Class 150 inlet and outlet flanges. Optional Class 300 or Class 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.

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, consult your Watlow representative.

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 madeto-order 304 or 316 stainless steel

Support Saddles

To mate with an existing installation, customized support saddle(s) and/or mounting lugs are available.

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.

can be supplied. Jacket diameter is dependent upon thermal insulation thickness.

To order, specify protective steel

jacket, material type and weatherproof, if desired.

To order, specify mounting lugs or support saddles and supply a

dimensional drawing.

370

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

Maximum V elocities

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.

Vessel Orientation Guidelines

Correctly 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.

Maximum Velocity to Avoid Excessive Pressure Drop

Fluid Nominal Pipe Size Maximum Velocity

inch ft/sec (m/sec)

Gases All 200 (61.0) Liquid 4 and smaller 10 (3.0) Liquid 6-8 15 (5.0) Liquid 10-12 19 (6.0) Liquid 14-16 21 (6.4) Liquid 18-20 23 (7.0) Liquid 24 24 (7.3)

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, consult your Watlow representative.

Circulation Heaters

Application Hints

• Select the recommended heating element sheath material and watt density for the substance being heated. Use the Supplemental Applications Chart on pages

263 to 266. If unable to

determine the correct heating element type and material, consult 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, consult 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.

• Choose a FIREBAR 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°C).

• Protect against electrical shock by properly grounding the unit per NEC requirements.

• One or more circulation heaters may be connected in series to achieve the desired total kilowatt or temperature output.

371

Tubular and

(95 mm)

(100 mm)

Ref

/16

(164 mm)

NPT Inlet & Outlet

Ref

(79 mm)

Ref

NPT

Process Assemblies

Circulation Heaters

Replacement Heater Assemblies

To help assure minimum process downtime, it’s advisable to order and keep on hand a replacement flange or screw plug heater assembly.

4" NPT

⁄

" NPT Screw Plug—WATROD Element

11⁄4

WATROD Code No. Est. Ship.

Description kW Fig. 120/240VÅ(ac) 240VÅ(ac) Weight

No. 1-Phase 1-Phase lbs (kg)

Application: Clean Water

60 W/in2➃ 3.0 1.1 CBEC15A6 23 (11) Steel Tank 4.0 1.1 CBEC19A10 29 (14) 2-Copper 5.0 1.2 CBEC23J10 29 (14) (9.3 W/cm2) 6.0 1.2 CBEC27J10 31 (14)

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in2➃ 1.0 1.1 CBEN13G6 21 (10) Steel Tank 1.5 1.1 CBEN19A6 29 (14) 2-Incoloy

(3.6 W/cm

2.0 1.2 CBEN24G6 29 (14)

)

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in2➃ 1.5 1.1 CBES19G6 29 (14) Steel Tank 2.0 1.2 CBES25G6 29 (14) 2-Steel

(3.6 W/cm2)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Spare and/or replacement screw plug or flange heaters can be ordered by simply providing the

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

1.1 245⁄

1.2 32

1.3 425⁄8 (1083) 32 (813) 4 (102)

1.4 635⁄

➃ Wired for higher voltage.

F.O.B.: Hannibal, Missouri

complete circulation heater code number and specifying “replacement heater only.”

8 (625) 15 (381) 3

⁄8 (829) 23 (584) 3 (76)

8 (1616) 53 (1346) 4 (102)

8 (79)

⁄

372

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

11⁄4" NPT Screw Plug—FIREBAR Element

FIREBAR Code No. Est. Ship.

Description kW Fig. 240VÅ(ac) 240VÅ(ac) 480VÅ(ac) 480VÅ(ac) Weight

No. 1-Phase 3-Phase 1-Phase 3-Phase lbs (kg)

Applications: Clean and Potable Water

90 W/in2➇ 1.5 1.1 CBDNF7R10bg CBDNF7R11bg 26 (12) Steel Tank 3.0 1.1 CBDNF11G10bg CBDNF11G11b 26 (12) 1-Incoloy

(14 W/cm

Applications: Process Water, Ethylene Glycol (50%)

45 W/in2➇ 2.0 1.1 CBDNF13A27 25 (12) Steel Tank 2.5 1.1 CBDNF15J27 26 (12) 1-Incoloy (7 W/cm2) 4.0 1.2 CBDNF22J27 CBDNF22J28 31 (14)

Applications: Cooking Oils, Ethylene Glycol (100%)

30 W/in2➂ 1.7 1.1 CBDNF16G12 CBDNF16G13 26 (12) Steel Tank 2.2 1.2 CBDNF19G12 CBDNF19G13 30 (14) 1-Incoloy (4.7 W/cm2) 3.5 1.3 CBDNF29R12 CBDNF29R13 43 (20)

Applications: Heat Transfer Oils, Lubrication Oils, Mineral Oil, Degreasing Solutions

23 W/in2➇ 1.25 1.1 CBDNF16G20 26 (12) Steel Tank 1.65 1.2 CBDNF19G20 30 (14) 1-Incoloy (3.6 W/cm2) 2.65 1.3 CBDNF29R20 CBDNF29R19 43 (20)

5.0 1.1 CBDNF16G3 CBDNF16G5 26 (12)

) 6.5 1.2 CBDNF19G3 CBDNF19G5 30 (14)

8.5 1.2 CBDNF24L3 CBDNF24L5 31 (14)

10.5 1.3 CBDNF29R3 CBDNF29R5 43 (20)

12.75 1.3 CBDNF34R3 CBDNF34R5 44 (20)

17.0 1.4 CBDNF45G3 CBDNF45G5 69 (32)

21.5 1.4 CBDNF55R5 71 (33)

3.0 1.2 CBDNF18A27 30 (14)

5.0 1.3 CBDNF27J27 CBDNF27J28 43 (20)

6.0 1.3 CBDNF32J27 CBDNF32J28 44 (20)

8.0 1.4 CBDNF42A27 CBDNF42A28 69 (32)

10.0 1.4 CBDNF51J27 CBDNF51J28 71 (33)

2.8 1.2 CBDNF24L12 CBDNF24L13 31 (14)

4.25 1.3 CBDNF34R12 CBDNF34R13 44 (20)

5.7 1.4 CBDNF45G12 CBDNF45G13 69 (32)

7.2 1.4 CBDNF55R12 CBDNF55R13 71 (33)

2.15 1.2 CBDNF24L20 CBDNF24L19 31 (14)

3.20 1.3 CBDNF34R20 CBDNF34R19 44 (20)

4.25 1.4 CBDNF45G20 CBDNF45G19 69 (32)

5.40 1.4 CBDNF55R20 CBDNF55R19 71 (33)

CONTINUED

Circulation Heaters

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

b Standard c Must be operated 3-phase wye. g Available in 1-phase only. h Can be wired 1-phase.

373

Tubular and

(79 mm)

Ref

(111 mm)

(143 mm)

Ref

/16

(125 mm)

1" NPT Inlet & Outlet

- 16 UNC Thread

(4 places)

deep (19 mm)

Ref

(89 mm)

/16

(284 mm)

(32 mm)

NPT

/16

(183 mm)

Process Assemblies

Circulation Heaters

" NPT Screw Plug—FIREBAR Element

11⁄4

FIREBAR Code No. Est. Ship.

Description kW Fig. 240VÅ(ac) 240VÅ(ac) 480VÅ(ac) 480VÅ(ac) Weight

No. 1-Phase 3-Phase 1-Phase 3-Phase lbs (kg)

Applications: Medium Weight Oils, Heat Transfer Oils, Lube Oils, Liquid Paraffin

15 W/in2➂ 0.67 1.1 CBDNF13A29 25 (12) Steel Tank 0.83 1.1 CBDNF15J29 26 (12) 1-Incoloy (2.3 W/cm2) 1.33 1.2 CBDNF22J29 CBDNF22J30 31 (14)

Applications: Bunker C and #6 Fuel Oils, Asphalt

8 W/in2➂ 0.43 1.1 CBDNF16G22 26 (12) Steel Tank 0.55 1.2 CBDNF19G22 30 (14) 1-Incoloy

(1.3 W/cm2) 0.88 1.3 CBDNF29R22 CBDNF29R21 43 (20)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

1.00 1.2 CBDNF18A29 30 (14)

1.67 1.3 CBDNF27J29 CBDNF27J30 43 (20)

2.00 1.3 CBDNF32J29 CBDNF32J30 44 (20)

2.67 1.4 CBDNF42A29 CBDNF42A30 69 (32)

3.30 1.4 CBDNF51J29 CBDNF51J30 71 (33)

0.70 1.2 CBDNF24L22 CBDNF24L21 31 (14)

1.08 1.3 CBDNF34R22 CBDNF34R21 44 (20)

1.40 1.4 CBDNF45G22 CBDNF45G21 69 (31)

1.80 1.4 CBDNF55R22 CBDNF55R21 71 (32) Truck Shipment only

➂ Must be operated 3-phase wye only.

2" NPT

21⁄

⁄2" NPT Screw Plug

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

2.1 3411⁄16 (881) 221⁄2 (572) 161⁄2 (419)

2.2 4411⁄16 (1135) 321⁄2 (1129) 261⁄2 (673)

2.3 573⁄

2.4 63

16 (1453) 45 (1143) 39 (991)

⁄16 (1618) 511⁄2 (1308) 461⁄2 (1181)

2.5 3411⁄16 (881) 221⁄2 (572) 161⁄2 (419)

374

2.6 4411⁄

2.7 57

(1135) 32

⁄16 (1453) 45 (1143) 39 (991)

(1129) 26

⁄

(673)

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

21⁄2" NPT Screw Plug—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac) 480VÅ(ac) Weight

No. 3-Phase 3-Phase lbs (kg)

Application: Clean Water

60 W/in Steel Tank 7.5 2.5 CBLC717L3 CBLC717L5 24 (11) 3-Copper 9.0 2.5 CBLC720L3 CBLC720L5 26 (12) (9.3 W/cm2) 12.0 2.6 CBLC726C3 CBLC726C5 27 (13)

Application: Deionized Water , Demineralized Water

60 W/in 316 SS Tank 7.5 2.5 CBLR717L3 CBLR717L5 24 (11) 3-316 SS 9.0 2.5 CBLR720L3 CBLR720L5 26 (12) (9.3 W/cm2) 12.0 2.6 CBLR726C3 CBLR726C5 27 (13) Passivated 15.0 2.6 CBLR731L3 CBLR731L5 29 (14)

Application: Process Water

48 W/in Steel Tank 7.5 2.5 CBLN719R3 CBLN719R5 26 (12) 3-Incoloy (7.5 W/cm2) 12.0 2.6 CBLN732G3 CBLN732G5 29 (14)

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in2➄➅ 3.0 2.5 CBLNA17G3 CBLNA17G5 24 (11) Steel Tank 4.5 2.6 CBLNA24R3 CBLNA24R5 27 (13) 3-Incoloy

(3.6 W/cm

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in2➅ 3.0 2.5 CBLS717E3 CBLS717E5 24 (11) Steel Tank 4.5 2.5 CBLS724N3 CBLS724N5 27 (13) 3-Steel 6.0 2.6 CBLS732E3 CBLS732E5 29 (14) (3.6 W/cm2) 7.5 2.7 CBLS739N3 CBLS739N5 31 (14)

Applications: Medium Weight Oils, Heat Transfer Oils, Lube Oils, Liquid Paraffin

16 W/in2➂ 2.0 2.5 CBLN717G12 CBLN717G13 24 (11) Steel Tank 2.5 2.5 CBLN719R12 CBLN719R13 26 (12) 3-Incoloy (2.5 W/cm2) 4.0 2.6 CBLN732G12 CBLN732G13 29 (14)

Applications: Bunker C and #6 Fuel Oils

8 W/in2➂ 2.0 2.6 CBLS732E12 CBLS732E13 29 (14) Steel Tank 3.0 2.7 CBLS747E12 CBLS747E13 32 (15) 3-Steel

(1.3 W/cm2)

6.0 2.5 CBLC714L3 CBLC714L5 24 (11)

15.0 2.6 CBLC731L3 CBLC731L5 29 (14)

18.0 2.7 CBLC737C3 CBLC737C5 30 (14)

6.0 2.5 CBLR714L3 CBLR714L5 24 (11)

18.0 2.7 CBLR737C3 CBLR737C5 30 (14)

6.0 2.5 CBLN717G3 CBLN717G5 24 (11)

9.0 2.5 CBLN724R3 CBLN724R5 27 (13)

15.0 2.7 CBLN739R3 CBLN739R5 31 (14)

18.0 2.7 CBLN747G3 CBLN747G5 32 (15)

6.0 2.6 CBLNA32G3 CBLNA32G5 29 (14)

) 7.5 2.7 CBLNA39R3 CBLNA39R5 31 (14)

9.0 2.7 CBLNA47G3 CBLNA47G5 32 (15)

9.0 2.7 CBLS747E3 CBLS747E5 32 (15)

3.0 2.5 CBLN724R12 CBLN724R13 27 (13)

5.0 2.7 CBLN739R12 CBLN739R13 31 (14)

6.0 2.7 CBLN747G12 CBLN747G13 32 (15)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

➂ Must be operated 3-phase wye only. ➄ 240VÅ(ac) can be wired wye and operated

at 480VÅ(ac) 3-phase to produce 1⁄3 more kW and watt density.

➅ Can be wired wye to produce 1⁄3 of the

original kW and watt density (3-phase only).

Circulation Heaters

375

Tubular and Process Assemblies

Circulation Heaters

21⁄2" NPT Screw Plug—FIREBAR Element

FIREBAR Code No. Est. Ship.

Description kW Fig. 240VÅ(ac) 480VÅ(ac) Weight

No. 3-Phase 3-Phase lbs (kg)

Applications: Clean and Potable Water

90 W/in2h 15.0 2.1 CBLNF15C3 CBLNF15C5 22 (10) Steel Tank 20.0 2.1 CBLNF18C3 CBLNF18C5c 23 (11) 3-Incoloy (14 W/cm2) 32.0 2.2 CBLNF28L5 34 (16)

Applications: Process Water, Ethylene Glycol (50%)

45 W/in2h 6.0 2.1 CBLNF12A27 21 (10) Steel Tank 7.5 2.1 CBLNF14J27 22 (10) 3-Incoloy (7 W/cm2) 12.0 2.1 CBLNF21J27 CBLNF21J28 31 (14)

Applications: Cooking Oils, Ethylene Glycol (100%)

30 W/in2c 5.0 2.1 CBLNF15C12 CBLNF15C13 22 (10) Steel Tank 6.5 2.1 CBLNF18C12 CBLNF18C13 23 (11) 3-Incoloy (4.7 W/cm2) 10.5 2.2 CBLNF28L12 CBLNF28L13 34 (16)

Applications: Heat Transfer Oils, Mineral Oil, Degreasing Solutions

23 W/in2h 3.8 2.1 CBLNF15C20 22 (10) Steel Tank 4.9 2.1 CBLNF18C20 23 (11) 3-Incoloy (3.6 W/cm2) 7.9 2.2 CBLNF28L20 CBLNF28L19 34 (16)

Applications: Medium Weight Oils, Heat Transfer Oils, Lube Oils, Liquid Paraffin

15 W/in2c 2.0 2.1 CBLNF12A29 21 (10) Steel Tank 2.5 2.1 CBLNF14J29 22 (10) 3-Incoloy (2.3 W/cm2) 4.0 2.1 CBLNF21J29 CBLNF21J30 31 (14)

Applications: Bunker C and #6 Fuel Oils, Asphalt

8 W/in2c 1.25 2.1 CBLNF15C22 22 (10) Steel Tank 1.63 2.1 CBLNF18C22 23 (10) 3-Incoloy (1.3 W/cm2) 2.63 2.2 CBLNF28L22 CBLNF28L21 34 (15)

25.0 2.1 CBLNF23C5 31 (14)

38.0 2.2 CBLNF33L5 35 (16)

9.0 2.1 CBLNF17A27 23 (11)

15.0 2.2 CBLNF26J27 CBLNF26J28 34 (16)

18.0 2.2 CBLNF31J27 CBLNF31J28 35 (16)

24.0 2.3 CBLNF41A28 44 (20)

30.0 2.4 CBLNF50J28 52 (24)

8.5 2.1 CBLNF23C12 CBLNF23C13 31 (14)

12.8 2.2 CBLNF33L12 CBLNF33L13 35 (16)

17.0 2.3 CBLNF44C12 CBLNF44C13 44 (20)

21.5 2.4 CBLNF54L13 52 (24)

6.4 2.1 CBLNF23C20 CBLNF23C19 31 (14)

9.6 2.2 CBLNF33L20 CBLNF33L19 35 (16)

12.8 2.3 CBLNF44C20 CBLNF44C19 44 (20)

16.1 2.4 CBLNF54L20 CBLNF54L19 52 (24)

3.0 2.1 CBLNF17A29 23 (11)

5.0 2.2 CBLNF26J29 CBLNF26J30 34 (16)

6.0 2.2 CBLNF31J29 CBLNF31J30 35 (16)

8.0 2.3 CBLNF41A29 CBLNF41A30 44 (20)

10.0 2.4 CBLNF50J29 CBLNF50J30 52 (24)

2.13 2.1 CBLNF23C22 CBLNF23C21 31 (14)

3.19 2.2 CBLNF33L22 CBLNF33L21 35 (16)

4.25 2.3 CBLNF44C22 CBLNF44C21 44 (20)

5.38 2.4 CBLNF54L22 CBLNF54L21 52 (24)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days Note: Assembly Stock may be shipped same

day if ordered before 11:00 am CST.

c Must be operated 3-phase wye only. h Can be wired 1-phase.

376

W A T L O W

Ref

(143 mm)

(105 mm)

1" NPT Inlet & Outlet

- 16 UNC Thread

(4 places)

(19 mm) deep

(2 places)

(32 mm)

Ref 5

(127 mm)

Ref

/16

(195 mm)

Ref

(292 mm)

NPT

(79 mm)

(111 mm)

Tubular and Process Assemblies

Circulation Heaters

3" Flange

3" 150 lb ANSI Flange—WATROD Element

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

3.1 35

3.2 45

3.3 57

16 (894) 22

⁄

⁄16 (1148) 321⁄2 (826) 261⁄2 (673)

⁄16 (1465) 45 (1143) 39 (991)

2 (573) 16

⁄

2 (419)

⁄

Circulation Heaters

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac) 240VÅ(ac) 480VÅ(ac) 480VÅ(ac) Weight

No. 1-Phase 3-Phase 1-Phase 3-Phase lbs (kg)

Application: Clean Water

60 W/in

6.0 3.1 CFMC715J10 CFMC715J3 CFMC715J11 CFMC715J5 66 (30) Steel Tank 9.0 3.1 CFMC721J10 CFMC721J3 CFMC721J11 CFMC721J5 70 (32) 3-Copper 12.0 3.2 CFMC727A3 CFMC727A11 CFMC727A5 80 (37)

(9.3 W/cm

) 15.0 3.2 CFMC732J3 CFMC732J11 CFMC732J5 96 (44)

18.0 3.3 CFMC738A3 CFMC738A11 CFMC738A5 98 (45)

Application: Process Water

48 W/in2➄ 6.0 3.1 CFMN718A10 CFMN718A3 CFMN718A11 CFMN718A5 68 (31) Steel Tank 7.5 3.1 CFMN720J10 CFMN720J3 CFMN720J11 CFMN720J5 70 (32)

3-Incoloy

(7.5 W/cm

9.0 3.2 CFMN725J10 CFMN725J3 CFMN725J11 CFMN725J5 78 (36)

) 12.0 3.2 CFMN733A3 CFMN733A11 CFMN733A5 96 (44)

15.0 3.3 CFMN740J3 CFMN740J11 CFMN740J5 100 (46)

18.0 3.3 CFMN748A3 CFMN748A11 CFMN748A5 107 (49)

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in2➄➅ 3.0 3.1 CFMNA18A10 CFMNA18A3 CFMNA18A11 CFMNA18A5 68 (31) Steel Tank 4.5 3.2 CFMNA25J10 CFMNA25J3 CFMNA25J11 CFMNA25J5 78 (36) 3-Incoloy

(3.6 W/cm2) 7.5 3.3 CFMNA40J10 CFMNA40J3 CFMNA40J11 CFMNA40J5 100 (46)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

6.0 3.2 CFMNA33A10 CFMNA33A3 CFMNA33A11 CFMNA33A5 96 (44)

9.0 3.3 CFMNA48A10 CFMNA48A3 CFMNA48A11 CFMNA48A5 107 (49)

Truck Shipment only

➄ 240VÅ(ac) can be wired wye and

operated at 480VÅ(ac) 3-phase to produce

➅ Can be wired wye to produce

original kW and watt density (3-phase only).

more kW and watt density.

⁄

of the

CONTINUED

377

Tubular and Process Assemblies

Circulation Heaters

3" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac) 240VÅ(ac) 480VÅ(ac) 480VÅ(ac) Weight

No. 1-Phase 3-Phase 1-Phase 3-Phase lbs (kg)

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in Steel Tank 4.5 3.1 CFMS725J10 CFMS725J3 CFMS725J11 CFMS725J5 78 (36) 3-Steel 6.0 3.2 CFMS733A10 CFMS733A3 CFMS733A11 CFMS733A5 96 (44) (3.6 W/cm2) 7.5 3.3 CFMS740J10 CFMS740J3 CFMS740J11 CFMS740J5 100 (46)

Applications: Medium Weight Oils, Heat Transfer Oils, Lube Oils, Liquid Paraffin

16 W/in2➂ 2.0 3.1 CFMN718A12 CFMN718A13 68 (31) Steel Tank 2.5 3.1 CFMN720J12 CFMN720J13 70 (32) 3-Incoloy

(2.6 W/cm

Applications: Bunker C and #6 Fuel Oils

8 W/in2➂ 2.0 3.2 CFMS733A12 CFMS733A13 96 (44) Steel Tank 3.0 3.3 CFMS748A12 CFMS748A13 107 (49) 3-Steel

(1.3 W/cm2)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

3.0 3.1 CFMS718A10 CFMS718A3 CFMS718A11 CFMS718A5 68 (31)

9.0 3.3 CFMS748A10 CFMS748A3 CFMS748A11 CFMS748A5 107 (49)

3.0 3.2 CFMN725J12 CFMN725J13 78 (36)

) 4.0 3.2 CFMN733A12 CFMN733A13 96 (44)

5.0 3.3 CFMN740J12 CFMN740J13 100 (46)

6.0 3.3 CFMN748A12 CFMN748A13 107 (49)

➂ Must be operated 3-phase wye only.

378

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

4" Flange

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

4.1 38

⁄16 (989) 201⁄2 (521) 17 (432)

4.2 497⁄16 (1256) 31 (787) 271⁄2 (699)

Ref

(321 mm)

/16

(119 mm)

Ref

(365 mm)

/16

4.3 70

4.4 91

(94 mm)

NPT Inlet & Outlet

- 16 UNC Thread

(19 mm) deep

Ref

(4 places)

NPT

Ref

/16

(144 mm)

(2 places)

(32 mm)

(168 mm)

NPT

(148 mm)

⁄16 (1789) 52 (1321) 481⁄2 (1232)

⁄16 (2326) 73 (1854) 66 (1676)

/16

4" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Application: Clean Water

60 W/in

12 4.1 CFOC715J10 2 CFOC715J3 1 CFOC715J11 1 CFOC715J5 1 124 (57) Steel Tank 18 4.1 CFOC721J10 2 CFOC721J3 1 CFOC721J11 1 CFOC721J5 1 127 (58) 6-Copper 24 4.2 CFOC727A10 2 CFOC727A3 2 CFOC727A11 1 CFOC727A5 1 160 (73)

(9.3 W/cm

) 30 4.2 CFOC732J3 2 CFOC732J11 2 CFOC732J5 1 163 (74)

36 4.3 CFOC738A3 2 CFOC738A11 2 CFOC738A5 1 229 (104)

50 4.3 CFOC751A5

60 4.4 CFOC760J5

Application: Deionized Water , Demineralized Water

60 W/in

12 4.1 CFOR716A10 1 CFOR716A3 1 CFOR716A11 1 CFOR716A5 1 124 (57) 316 SS Tank 18 4.1 CFOR722A10 2 CFOR722A3 1 CFOR722A11 1 CFOR722A5 1 127 (58) 6-316 SS 24 4.2 CFOR727J10 2 CFOR727J3 2 CFOR727J11 1 CFOR727J5 1 160 (73) (9.3 W/cm2) 30 4.2 CFOR733A3 2 CFOR733A11 2 CFOR733A5 1 163 (74)

Passivated 36 4.3 CFOR738J3 2 CFOR738J11 2 CFOR738J5 1 229 (104)

50 4.3 CFOR751J5 2 234 (106)

60 4.4 CFOR761A5 2 297 (135)

Application: Process Water

48 W/in Steel Tank 12 4.1 CFON718A10 2 CFON718A3 1 CFON718A11 1 CFON718A5 1 125 (57) 6-Incoloy

(7.5 W/cm

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard:10 working days

Truck Shipment only

9 4.1 CFON713J10 1 CFON713J3 1 CFON713J11 1 CFON713J5 1 122 (56)

15 4.1 CFON720J10 2 CFON720J3 1 CFON720J11 2 CFON720J5 1 127 (58)

) 18 4.1 CFON725J10 2 CFON725J3 1 CFON725J11 1 CFON725J5 1 160 (73)

24 4.2 CFON733A10 2 CFON733A3 2 CFON733A11 1 CFON733A5 1 163 (74)

30 4.3 CFON740J3 2 CFON740J11 2 CFON740J5 1 229 (104)

36 4.3 CFON748A3 2 CFON748A11 2 CFON748A5 1 234 (107)

b Standard

No. of

Circuits

480VÅ(ac)

1-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

No. of

Circuits

2 234 (107)

2 297 (135)

Weight

lbs (kg)

CONTINUED

Circulation Heaters

379

Tubular and Process Assemblies

Circulation Heaters

4" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in2➄➅ 6 4.1 CFONA18A10 1 CFONA18A3 1 CFONA18A11 1 CFONA18A5 1 125 (57) Steel Tank 9 4.1 CFONA25J10 1 CFONA25J3 1 CFONA25J11 1 CFONA25J5 1 160 (73) 6-Incoloy (3.6 W/cm2) 15 4.3 CFONA40J10 2 CFONA40J3 1 CFONA40J11 1 CFONA40J5 1 229 (104)

12 4.2 CFONA33A10 2 CFONA33A3 1 CFONA33A11 1 CFONA33A5 1 163 (74)

18 4.3 CFONA48A10 2 CFONA48A3 1 CFONA48A11 1 CFONA48A5 1 234 (107) 25 4.4 CFONA64J3 2 CFONA64J11 2 CFONA64J5 1 298 (136) 30 4.4 CFONA77A3 2 CFONA77A11 2 CFONA77A5 1 306 (139)

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in Steel Tank 9 4.1 CFOS725J10 1 CFOS725J3 1 CFOS725J11 1 CFOS725J5 1 160 (73) 6-Steel 12 4.2 CFOS733A10 2 CFOS733A3 1 CFOS733A11 1 CFOS733A5 1 163 (74)

(3.6 W/cm2) 15 4.3 CFOS740J10 2 CFOS740J3 1 CFOS740J11 1 CFOS740J5 1 229 (104)

6 4.1 CFOS718A10 1 CFOS718A3 1 CFOS718A11 1 CFOS718A5 1 125 (57)

18 4.3 CFOS748A10 2 CFOS748A3 1 CFOS748A11 1 CFOS748A5 1 234 (107) 25 4.4 CFOS764J3 2 CFOS764J11 2 CFOS764J5 1 298 (136) 30 4.4 CFOS777A3 2 CFOS777A11 2 CFOS777A5 1 306 (139)

Applications: Medium Weight Oils, Heat Transfer Oils, Liquid Paraffin

16 W/in2➂ 3 4.1 CFON713J12 1 CFON713J13 1 122 (56) Steel Tank 4 4.1 CFON718A12 1 CFON718A13 1 125 (57) 6-Incoloy (2.6 W/cm2) 6 4.1 CFON725J12 1 CFON725J13 1 160 (73)

5 4.1 CFON720J12 1 CFON720J13 1 127 (58)

8 4.2 CFON733A12 1 CFON733A13 1 163 (74) 10 4.3 CFON740J12 2 CFON740J13 1 229 (104) 12 4.3 CFON748A12 1 CFON748A13 1 234 (107)

Applications: Bunker C and #6 Fuel Oils

8 W/in2➂ 5 4.3 CFOS740J12 1 CFOS740J13 1 229 (104) Steel Tank 6 4.3 CFOS748A12 1 CFOS748A13 1 234 (106) 6-Steel 8 4.4 CFOS764J12 1 CFOS764J13 1 298 (135) (1.3 W/cm2) 10 4.4 CFOS777A12 1 CFOS777A13 1 306 (139)

No. of

Circuits

480VÅ(ac)

1-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

No. of

Circuits

Weight

lbs (kg)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

380

➂ Must be operated 3-phase wye only. ➄ 240VÅ(ac) can be wired wye and

operated at 480VÅ(ac) 3-phase to produce 1⁄3 more kW and watt density.

➅ Can be wired wye to produce 1⁄3 of the

original kW and watt density (3-phase only).

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

4" 150 lb ANSI Flange—FIREBAR Element

FIREBAR Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 3-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

Applications: Process Water, Ethylene Glycol (50%)

45 W/in Steel Tank 15.0 4.1 CFONF16A27 1 128 (58) 6-Incoloy

(7 W/cm2) 24.0 4.1 CFONF22R27 2 CFONF22R28 1 133 (61)

12.0 4.1 CFONF13G27 1 125 (57)

18.0 4.1 CFONF18G27 1 130 (59)

30.0 4.2 CFONF27R27 2 CFONF27R28 1 168 (77)

36.0 4.2 CFONF32R27 2 CFONF32R28 1 170 (78)

48.0 4.3 CFONF42G28 2 236 (107)

60.0 4.3 CFONF51R28 2 240 (109)

Applications: Cooking Oils, Ethylene Glycol (100%)

30 W/in Steel Tank 13.0 4.1 CFONF19J12 1 CFONF19J13 1 130 (59) 6-Incoloy

(4.7 W/cm2) 21.0 4.2 CFONF30A12 2 CFONF30A13 1 168 (77)

10.0 4.1 CFONF16J12 1 CFONF16J13 1 128 (58)

17.0 4.1 CFONF24J12 1 CFONF24J13 1 133 (61)

25.5 4.2 CFONF35A12 2 CFONF35A13 1 170 (78)

34.0 4.3 CFONF45J12 2 CFONF45J13 1 236 (107)

43.0 4.3 CFONF56A13 2 240 (109)

Applications: Heat Transfer Oils, Mineral Oils, Degreasing Solutions

23 W/in2➃ 7.5 4.1 CFONF16J20 1 128 (58) Steel Tank 10.0 4.1 CFONF19J20 1 130 (59) 6-Incoloy (3.6 W/cm2) 15.8 4.2 CFONF30A20 1 CFONF30A19 1 168 (77)

12.8 4.1 CFONF24J20 1 CFONF24J19 1 133 (61)

19.0 4.2 CFONF35A20 1 CFONF35A19 1 170 (78)

25.0 4.3 CFONF45J20 2 CFONF45J19 1 236 (107)

32.3 4.3 CFONF56A20 2 CFONF56A19 1 240 (109)

Applications: Medium Weight Oils, Heat Transfer Oils, Lube Oils, Liquid Paraffin

15 W/in2➂ 4.0 4.1 CFONF13G29 1 125 (57) Steel Tank 5.0 4.1 CFONF16A29 1 128 (58) 6-Incoloy (2.3 W/cm2) 8.0 4.1 CFONF22R29 1 CFONF22R30 1 133 (61)

6.0 4.1 CFONF18G29 1 130 (59)

10.0 4.2 CFONF27R29 1 CFONF27R30 1 168 (77)

12.0 4.2 CFONF32R29 1 CFONF32R30 1 170 (78)

16.0 4.3 CFONF42G29 1 CFONF42G30 1 236 (107)

20.0 4.3 CFONF51R29 1 CFONF51R30 1 240 (109)

Applications: Bunker C and #6 Fuel Oils, Asphalt

8 W/in2➂ 2.5 4.1 CFONF16J22 1 128 (58) Steel Tank 3.25 4.1 CFONF19J22 1 130 (59) 6-Incoloy (1.3 W/cm2) 5.25 4.2 CFONF30A22 1 CFONF30A21 1 168 (77)

4.25 4.1 CFONF24J22 1 CFONF24J21 1 133 (61)

6.38 4.2 CFONF35A22 1 CFONF35A21 1 170 (77)

8.5 4.3 CFONF45J22 1 CFONF45J21 1 236 (107)

10.75 4.3 CFONF56A22 1 CFONF56A21 1 240 (109)

No. of

Circuits

Weight

lbs (kg)

Circulation Heaters

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

➂ Must be operated 3-phase wye only. ➃ Wired for higher voltage.

381

Tubular and Process Assemblies

Circulation Heaters

5"Flange

Ref

(321 mm)

/16

(119 mm)

Ref

2" NPT Inlet & Outlet

(4 places)

NPT

- 16 UNC Thread

(19 mm) deep

25" (635 mm)

Ref

/16

(167 mm)

(2 places)

(32 mm)

(194 mm)

/16

(141 mm)

NPT

5" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Application: Clean Water

60 W/in

24 5.1 CFNC727A10 3 CFNC727A3 2 CFNC727A11 3 CFNC727A5 1 140 (64) Steel Tank 30 5.1 CFNC732J3 2 CFNC732J11 2 CFNC732J5 1 142 (65) 6-Copper 36 5.2 CFNC738A3 2 CFNC738A11 2 CFNC738A5 1 160 (73)

(9.3 W/cm

) 50 5.3 CFNC751A5 2 180 (82)

60 5.4 CFNC760J5

60 W/in

36 5.1 CFNC727A3X 3 CFNC727A11X 3 CFNC727A5X 1 145 (66) Steel Tank 45 5.1 CFNC732J3X 3 CFNC732J11X 3 CFNC732J5X 3 147 (67) 9-Copper 54 5.2 CFNC738A3X 3 CFNC738A11X 3 CFNC738A5X 3 166 (76)

(9.3 W/cm

) 75 5.3 CFNC751A5X 3 188 (86)

90 5.4 CFNC760J5X

Application: Process Water

48 W/in

➄ 24 5.1 CFNN733A10 3 CFNN733A3 2 CFNN733A11 3 CFNN733A5 1 145 (66)

Steel Tank 30 5.2 CFNN740J3 2 CFNN740J11 2 CFNN740J5 1 167 (76) 6-Incoloy

(7.5 W/cm

48 W/in Steel Tank 45 5.2 CFNN740J3X 3 CFNN740J11X 3 CFNN740J5X 3 173 (79) 9-Incoloy

(7.5 W/cm

36 5.3 CFNN748A3 2 CFNN748A11 2 CFNN748A5 1 180 (82)

)

36 5.1 CFNN733A3X 3 CFNN733A11X 3 CFNN733A5X 1 150 (68)

54 5.3 CFNN748A3X 3 CFNN748A11X 3 CFNN748A5X 3 188 (86)

)

No. of

Circuits

Fig. A Dimension B Dimension E Dimension No. in (mm) in (mm) in (mm)

5.1 493⁄16

5.2 56

(1249) 30 (762) 14

⁄16 (1427) 37 (940) 189⁄16 (471)

5.3 6711⁄16 (1719) 481⁄2 (1232) 2415⁄16 (633)

5.4 811⁄

5.5 94

(108 mm)

480VÅ(ac)

1-Phase

16 (2059) 61

⁄16 (2389) 747⁄8 (1902) 3715⁄16 (964)

No. of

Circuits

8 (1572) 30

⁄

480VÅ(ac)

3-Phase

Circuits

➁ 2 190 (87)

➁ 3 200 (91)

⁄8

8 (784)

⁄

No. of

CONTINUED

Weight

lbs (kg)

(378)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

382

➁ Standard ➄ 240VÅ(ac) can be wired wye and operated

at 480VÅ(ac) 3-phase to produce 1⁄3 more kW and watt density.

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

5" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in

➄➅ 9 5.1 CFNNA25J10 1 CFNNA25J3 1 CFNNA25J11 1 CFNNA25J5 1 140 (64)

Steel Tank 12 5.2 CFNNA33A10 2 CFNNA33A3 1 CFNNA33A11 1 CFNNA33A5 1 145 (66) 6-Incoloy

(3.6 W/cm

23 W/in Steel Tank 18 5.2 CFNNA33A10X 3 CFNNA33A3X 1 CFNNA33A11X 1 CFNNA33A5X 1 145 (68) 9-Incoloy

(3.6 W/cm

15 5.2 CFNNA40J10 2 CFNNA40J3 1 CFNNA40J11 1 CFNNA40J5 1 167 (76)

) 18 5.3 CFNNA48A10 2 CFNNA48A3 1 CFNNA48A11 1 CFNNA48A5 1 180 (82)

25 5.4 CFNNA64J3 2 CFNNA64J11 2 CFNNA64J5 1 195 (89) 30 5.5 CFNNA77A3 2 CFNNA77A11 2 CFNNA77A5 1 220 (100)

14 5.1 CFNNA25J10X 3 CFNNA25J3X 1 CFNNA25J11X 1 CFNNA25J5X 1 140 (66)

23 5.2 CFNNA40J10X 3 CFNNA40J3X 3 CFNNA40J11X 1 CFNNA40J5X 1 167 (79)

) 27 5.3 CFNNA48A10X 3 CFNNA48A3X 3 CFNNA48A11X 3 CFNNA48A5X 1 180 (86)

38 5.4 CFNNA64J3X 3 CFNNA64J11X 3 CFNNA64J5X 1 195 (94) 45 5.5 CFNNA77A3X 3 CFNNA77A11X 3 CFNNA77A5X 3 220 (106)

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in Steel Tank 15 5.2 CFNS740J10 2 CFNS740J3 1 CFNS740J11 1 CFNS740J5 1 167 (76) 6-Steel 18 5.3 CFNS748A10 2 CFNS748A3 3 CFNS748A11 1 CFNS748A5 1 180 (82)

(3.6 W/cm

23 W/in Steel Tank 23 5.2 CFNS740J10X 3 CFNS740J3X 3 CFNS740J11X 1 CFNS740J5X 1 173 (79) 9-Steel 27 5.3 CFNS748A10X 3 CFNS748A3X 1 CFNS748A11X 3 CFNS748A5X 1 188 (86)

(3.6 W/cm

12 5.2 CFNS733A10 2 CFNS733A3 1 CFNS733A11 1 CFNS733A5 1 145 (66)

) 25 5.4 CFNS764J3 2 CFNS764J11 2 CFNS764J5 1 195 (89)

30 5.5 CFNS777A3 2 CFNS777A11 2 CFNS777A5 1 220 (100) 18 5.2 CFNS733A10X 3 CFNS733A3X 1 CFNS733A11X 1 CFNS733A5X 1 150 (68)

) 38 5.4 CFNS764J3X 3 CFNS764J11X 3 CFNS764J5X 1 206 (94)

45 5.5 CFNS777A3X 3 CFNS777A11X 3 CFNS777A5X 3 233 (106)

Applications: Medium Weight Oils, Heat Transfer Oils, Liquid Paraffin

16 W/in

➂ 8 5.1 CFNN733A12 1 CFNN733A13 1 145 (66)

Steel Tank 10 5.2 CFNN740J12 1 CFNN740J13 1 167 (76) 6-Incoloy

(2.6 W/cm

16 W/in Steel Tank 15 5.2 CFNN740J12X 1 CFNN740J13X 1 173 (79) 9-Incoloy

(2.6 W/cm

12 5.3 CFNN748A12 1 CFNN748A13 1 180 (82)

)

➂ 12 5.1 CFNN733A12X 1 CFNN733A13X 1 150 (68)

18 5.3 CFNN748A12X 1 CFNN748A13X 1 188 (86)

)

Applications: Bunker C and #6 Fuel Oils

8 W/in

➂ 5 5.2 CFNS740J12 1 CFNS740J13 1 167 (76)

Steel Tank 6 5.3 CFNS748A12 1 CFNS748A13 1 180 (82) 6-Steel 8 5.4 CFNS764J12 1 CFNS764J13 1 195 (89)

(1.3 W/cm

8 W/in Steel Tank 9 5.3 CFNS748A12X 1 CFNS748A13X 1 188 (86) 9-Steel 12 5.4 CFNS764J12X 1 CFNS764J13X 1 206 (94)

(1.3 W/cm

) 10 5.5 CFNS777A12 1 CFNS777A13 1 220 (100)

➂ 7.5 5.2 CFNS740J12X 1 CFNS740J13X 1 173 (79)

) 15 5.5 CFNS777A12X 1 CFNS777A13X 1 233 (106)

No. of

Circuits

480VÅ(ac)

1-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

No. of

Circuits

Weight

lbs (kg)

Circulation Heaters

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

➂ Must be operated 3-phase wye only. ➄ 240VÅ(ac) can be wired wye and operat-

ed at 480VÅ(ac) 3-phase to produce 1⁄3 more kW and watt density.

➅ Can be wired wye to produce 1⁄3 of the

original kW and watt density (3-phase only).

383

Tubular and Process Assemblies

Circulation Heaters

6" Flange

Ref

(322 mm)

/16

(119 mm)

/16

(367 mm)

NPT Inlet & Outlet

- 10 UNC Thread

(4 places)

/16

NPT

(19 mm) deep

Ref

(184 mm)

(2 places)

(89 mm)

(222 mm)

(168 mm)

NPT

6" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Application: Clean Water

60 W/in

24 6.1 CFPC715G10 3 CFPC715G3 2 CFPC715G11 2 CFPC715G5 1 212 (97) Steel Tank 36 6.1 CFPC721G10 4 CFPC721G3 2 CFPC721G11 2 CFPC721G5 1 217 (99) 12-Copper 48 6.2 CFPC726R3 4 CFPC726R11 3 CFPC726R5 2 222 (101)

(9.3 W/cm

) 60 6.2 CFPC732G3 4 CFPC732G11 3 CFPC732G5 2 226 (103)

72 6.3 CFPC737R3 4 CFPC737R5 2 290 (132)

100 6.3 CFPC750R5 4 298 (136) 120 6.4 CFPC760G5 4 360 (164)

60 W/in

30 6.1 CFPC715G10X 3 CFPC715G3X 5 CFPC715G11X 3 CFPC715G5X 1 215 (98) Steel Tank 45 6.1 CFPC721G10X 5 CFPC721G3X 5 CFPC721G11X 3 CFPC721G5X 5 223 (102) 15-Copper 60 6.2 CFPC726R3X 5 CFPC726R11X 3 CFPC726R5X 5 226 (103)

(9.3 W/cm

) 75 6.2 CFPC732G3X 5 CFPC732G11X 5 CFPC732G5X 5 288 (131)

90 6.3 CFPC737R3X 5 CFPC737R5X 5 296 (134)

125 6.3 CFPC750R5X 5 306 (139) 150 6.4 CFPC760G5X

Application: Deionized Water , Demineralized Water

60 W/in

24 6.1 CFPR715N10 3 CFPR715N3 2 CFPR715N11 2 CFPR715N5 1 212 (97) 316 SS Tank 36 6.1 CFPR721N10 4 CFPR721N3 2 CFPR721N11 3 CFPR721N5 1 217 (99) 12-316 SS 48 6.2 CFPR727E3 4 CFPR727E11 3 CFPR727E5 2 222 (101)

(9.3 W/cm

) 60 6.2 CFPR732N3 4 CFPR732N11 3 CFPR732N5 2 226 (103)

Passivated 72 6.3 CFPR738E3 4 CFPR738E5 2 290 (132)

100 6.3 CFPR751E5 4 298 (136) 120 6.4 CFPR760N5 4 360 (164)

60 W/in

30 6.1 CFPR715N10X 3 CFPR715N3X 5 CFPR715N11X 3 CFPR715N5X 1 215 (98) 316 SS Tank 45 6.1 CFPR721N10X 5 CFPR721N3X 5 CFPR721N11X 3 CFPR721N5X 5 223 (102) 15-316 SS 60 6.2 CFPR727E3X 5 CFPR727E11X 3 CFPR727E5X 5 226 (103)

(9.3 W/cm

) 75 6.2 CFPR732N3X 5 CFPR732N11X 5 CFPR732N5X 5 288 (131)

Passivated 90 6.3 CFPR738E3X 5 CFPR738E5X 5 296 (135)

125 6.3 CFPR751E5X 5 306 (139) 150 6.4 CFPR760N5X 5 370 (168)

All circulation heaters are Assembly Stock

➁ Standard

unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

384

No. of

Circuits

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

⁄16 (1027) 201⁄2 (521) 17 (432)

16 (1294) 31 (787) 27

⁄

⁄16 (1827) 52 (1321) 481⁄2 (1232)

16 (2361) 73 (1854) 66 (1676)

No. of

Circuits

480VÅ(ac)

3-Phase

➁

(121 mm)

6.1 40

6.2 50

6.3 71

6.4 9215⁄

480VÅ(ac)

1-Phase

2 (699)

⁄

No. of

Circuits

Weight

lbs (kg)

5 370 (168)

CONTINUED

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

6" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Application: Process Water

48 W/in

➄ 18 6.1 CFPN713G10 2 CFPN713G3 1 CFPN713G11 1 CFPN713G5 1 212 (97)

Steel Tank 24 6.1 CFPN717R10 3 CFPN717R3 2 CFPN717R11 2 CFPN717R5 1 214 (97) 12-Incoloy

(7.5 W/cm

48 W/in Steel Tank 30 6.1 CFPN717R10X 3 CFPN717R3X 5 CFPN717R11X 3 CFPN717R5X 1 217 (99) 15-Incoloy

(7.5 W/cm

30 6.1 CFPN720G10 3 CFPN720G3 2 CFPN720G11 2 CFPN720G5 1 217 (99)

) 36 6.1 CFPN725G10 4 CFPN725G3 2 CFPN725G11 2 CFPN725G5 1 222 (101)

48 6.2 CFPN732R3 4 CFPN732R11 3 CFPN732R5 2 226 (103) 60 6.3 CFPN740G3 4 CFPN740G11 3 CFPN740G5 2 290 (132) 72 6.3 CFPN747R3 4 CFPN747R5 2 298 (136)

23 6.1 CFPN713G10X 3 CFPN713G3X 5 CFPN713G11X 1 CFPN713G5X 1 215 (98)

38 6.1 CFPN720G10X 5 CFPN720G3X 5 CFPN720G11X 3 CFPN720G5X 1 223 (102)

) 45 6.1 CFPN725G10X 5 CFPN725G3X 5 CFPN725G11X 3 CFPN725G5X 5 226 (103)

60 6.2 CFPN732R3X 5 CFPN732R11X 3 CFPN732R5X 5 288 (131) 75 6.3 CFPN740G3X 5 CFPN740G11X 5 CFPN740G5X 5 296 (135) 90 6.3 CFPN747R3X 5 CFPN747R5X 5 306 (139)

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in

➄➅ 12 6.1 CFPNA17R10 2 CFPNA17R3 1 CFPNA17R11 1 CFPNA17R5 1 214 (97)

Steel Tank 18 6.1 CFPNA25G10 2 CFPNA25G3 1 CFPNA25G11 1 CFPNA25G5 1 222 (101) 12-Incoloy

(3.6 W/cm

23 W/in Steel Tank 23 6.1 CFPNA25G10X 3 CFPNA25G3X 5 CFPNA25G11X 1 CFPNA25G5X 1 226 (103) 15-Incoloy

(3.6 W/cm

24 6.2 CFPNA32R10 3 CFPNA32R3 2 CFPNA32R11 2 CFPNA32R5 1 226 (103)

) 30 6.3 CFPNA40G10 3 CFPNA40G3 2 CFPNA40G11 2 CFPNA40G5 1 290 (132)

36 6.3 CFPNA47R10 4 CFPNA47R3 2 CFPNA47R11 2 CFPNA47R5 1 298 (136) 50 6.4 CFPNA64G3 4 CFPNA64G11 3 CFPNA64G5 2 360 (164) 60 6.4 CFPNA76R3 4 CFPNA76R11 3 CFPNA76R5 2 368 (167)

15 6.1 CFPNA17R10X 3 CFPNA17R3X 1 CFPNA17R11X 1 CFPNA17R5X 1 217 (99)

30 6.2 CFPNA32R10X 3 CFPNA32R3X 5 CFPNA32R11X 3 CFPNA32R5X 1 288 (131)

) 38 6.3 CFPNA40G10X 5 CFPNA40G3X 5 CFPNA40G11X 3 CFPNA40G5X 1 296 (135)

45 6.3 CFPNA47R10X 5 CFPNA47R3X 5 CFPNA47R11X 3 CFPNA47R5X 5 306 (139) 63 6.4 CFPNA64G3X 5 CFPNA64G11X 3 CFPNA64G5X 5 370 (168) 75 6.4 CFPNA76R3X 5 CFPNA76R11X 5 CFPNA76R5X 5 381 (173)

No. of

Circuits

480VÅ(ac)

1-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

No. of

Circuits

CONTINUED

Weight

lbs (kg)

Circulation Heaters

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

➄ 240VÅ(ac) can be wired wye and

operated at 480VÅ(ac) 3-phase to produce

➅

Can be wired wye to produce 1⁄3 of the

⁄3 more kW and watt density.

original kW and watt density (3-phase only).

385

Tubular and Process Assemblies

Circulation Heaters

6" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in Steel Tank 18 6.1 CFPS725G10 2 CFPS725G3 1 CFPS725G11 1 CFPS725G5 1 222 (101) 12-Steel 24 6.2 CFPS732R10 3 CFPS732R3 2 CFPS732R11 2 CFPS732R5 1 226 (103)

(3.6 W/cm

23 W/in Steel Tank 23 6.1 CFPS725G10X 3 CFPS725G3X 5 CFPS725G11X 1 CFPS725G5X 1 226 (103) 15-Steel 30 6.2 CFPS732R10X 3 CFPS732R3X 5 CFPS732R11X 3 CFPS732R5X 1 288 (131)

(3.6 W/cm

12 6.1 CFPS717R10 2 CFPS717R3 1 CFPS717R11 1 CFPS717R5 1 214 (97)

) 30 6.3 CFPS740G10 3 CFPS740G3 2 CFPS740G11 2 CFPS740G5 1 290 (132)

36 6.3 CFPS747R10 4 CFPS747R3 2 CFPS747R11 2 CFPS747R5 1 298 (136)

50 6.4 CFPS764G3 4 CFPS764G11 3 CFPS764G5 2 360 (164)

60 6.4 CFPS776R3 4 CFPS776R11 3 CFPS776R5 2 368 (167)

15 6.1 CFPS717R10X 3 CFPS717R3X 1 CFPS717R11X 1 CFPS717R5X 1 217 (99)

) 38 6.3 CFPS740G10X 5 CFPS740G3X 5 CFPS740G11X 3 CFPS740G5X 1 296 (135)

45 6.3 CFPS747R10X 5 CFPS747R3X 5 CFPS747R11X 3 CFPS747R5X 5 306 (139)

63 6.4 CFPS764G3X 5 CFPS764G11X 3 CFPS764G5X 5 370 (168)

75 6.4 CFPS776R3X 5 CFPS776R11X 5 CFPS776R5X 5 381 (173)

Applications: Medium Weight Oils, Heat Transfer Oils, Liquid Paraffin

16 W/in

➂ 6 6.1 CFPN713G12 1 CFPN713G13 1 212 (97)

Steel Tank 8 6.1 CFPN717R12 1 CFPN717R13 1 214 (97) 12-Incoloy

(2.6 W/cm

16 W/in Steel Tank 10 6.1 CFPN717R12X 1 CFPN717R13X 1 217 (99) 15-Incoloy

(2.6 W/cm

➂ 7.5 6.1 CFPN713G12X 1 CFPN713G13X 1 215 (98)

10 6.1 CFPN720G12 1 CFPN720G13 1 217 (99)

) 12 6.1 CFPN725G12 1 CFPN725G13 1 222 (101)

16 6.2 CFPN732R12 1 CFPN732R13 1 226 (103)

20 6.3 CFPN740G12 2 CFPN740G13 1 290 (132)

24 6.3 CFPN747R12 2 CFPN747R13 1 298 (136)

12.5 6.1 CFPN720G12X 1 CFPN720G13X 1 223 (102)

) 15 6.1 CFPN725G12X 1 CFPN725G13X 1 226 (103)

20 6.2 CFPN732R12X 5 CFPN732R13X 1 288 (131)

25 6.3 CFPN740G12X 5 CFPN740G13X 1 296 (135)

30 6.3 CFPN747R12X 5 CFPN747R13X 1 306 (139)

Applications: Bunker C and #6 Fuel Oils

8 W/in

➂ 8 6.2 CFPS732R12 1 CFPS732R13 1 226 (103)

Steel Tank 10 6.3 CFPS740G12 1 CFPS740G13 1 290 (132) 12-Steel 12 6.3 CFPS747R12 1 CFPS747R13 1 298 (136)

(1.3 W/cm

8 W/in Steel Tank 12.5 6.3 CFPS740G12X 1 CFPS740G13X 1 296 (135) 15-Steel 15 6.3 CFPS747R12X 1 CFPS747R13X 1 306 (139)

(1.3 W/cm

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

) 16.5 6.4 CFPS764G12 1 CFPS764G13 1 360 (164)

20 6.4 CFPS776R13 1 368 (167)

➂ 10 6.2 CFPS732R12X 1 CFPS732R13X 288 (131)

) 21 6.4 CFPS764G12X 5 CFPS764G13X 1 370 (168)

25 6.4 CFPS776R12X 5 CFPS776R13X 1 381 (173)

➂ Must be operated 3-phase wye only.

Truck Shipment only

No. of

Circuits

480VÅ(ac)

1-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

No. of

Circuits

Weight

lbs (kg)

386

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

6" 150 lb ANSI Flange—FIREBAR Element

FIREBAR Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 3-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

Applications: Process Water, Ethylene Glycol (50%)

45 W/in Steel Tank 37.5 6.1 CFPNF16A27 5 220 (100) 15-Incoloy

(7 W/cm2) 60 6.1 CFPNF22R27 5 CFPNF22R28 5 226 (103)

30 6.1 CFPNF13G27 5 217 (99)

45 6.1 CFPNF18G27 5 223 (102)

75 6.2 CFPNF27R27 5 CFPNF27R28 5 232 (106)

90 6.2 CFPNF32R27 5 CFPNF32R28 5 236 (107) 120 6.3 CFPNF42G28 5 304 (138) 150 6.3 CFPNF51R28 5 314 (143)

Applications: Cooking Oils, Ethylene Glycol (100%)

30 W/in2➂ 25 6.1 CFPNF16J12 5 CFPNF16J13 5 220 (100) Steel Tank 32 6.1 CFPNF19J12 5 CFPNF19J13 5 223 (102) 15-Incoloy (4.7 W/cm2) 52 6.2 CFPNF30A12 5 CFPNF30A13 5 232 (106)

42 6.1 CFPNF24J12 5 CFPNF24J13 5 226 (103)

64 6.2 CFPNF35A12 5 CFPNF35A13 5 236 (107)

85 6.3 CFPNF45J12 5 CFPNF45J13 5 304 (138) 110 6.3 CFPNF56A13 5 314 (143)

Applications: Heat Transfer Oils, Mineral Oil, Degreasing Solutions

23 W/in2➃ 19 6.1 CFPNF16J20 5 220 (100) Steel Tank 24 6.1 CFPNF19J20 5 223 (102) 15-Incoloy (3.6 W/cm2) 40 6.2 CFPNF30A20 5 CFPNF30A19 5 232 (106)

32 6.1 CFPNF24J20 5 CFPNF24J19 5 226 (103)

48 6.2 CFPNF35A20 5 CFPNF35A19 5 236 (107)

64 6.3 CFPNF45J20 5 CFPNF45J19 5 304 (138)

80 6.3 CFPNF56A20 5 CFPNF56A19 5 314 (143)

Applications: Medium Weight Oils, Heat Transfer Oils, Lube Oils, Liquid Paraffin

15 W/in2➂ 10 6.1 CFPNF13G29 5 217 (99) Steel Tank 12.5 6.1 CFPNF16A29 5 220 (100) 15-Incoloy (2.3 W/cm2) 20 6.1 CFPNF22R29 5 CFPNF22R30 5 226 (103)

15 6.1 CFPNF18G29 5 223 (102)

25 6.2 CFPNF27R29 5 CFPNF27R30 5 232 (106)

30 6.2 CFPNF32R29 5 CFPNF32R30 5 236 (107)

40 6.3 CFPNF42G29 5 CFPNF42G30 5 304 (138)

50 6.3 CFPNF51R29 5 CFPNF51R30 5 314 (143)

Applications: Bunker C and #6 Fuel Oils, Asphalt

8 W/in2➂ 6.3 6.1 CFPNF16J22 5 220 (100) Steel Tank 8.1 6.1 CFPNF19J22 5 223 (102) 15-Incoloy

(1.3 W/cm2) 13.1 6.2 CFPNF30A22 5 CFPNF30A21 5 232 (106)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days

10.6 6.1 CFPNF24J22 5 CFPNF24J21 5 226 (103)

16 6.2 CFPNF35A22 5 CFPNF35A21 5 236 (107)

21.3 6.3 CFPNF45J22 5 CFPNF45J21 5 304 (138)

26 6.3 CFPNF56A22 5 CFPNF56A21 5 314 (143)

Truck Shipment only

➂ Must be operated 3-phase wye only. ➃ Wired for higher voltage.

No. of

Circuits

Weight

lbs (kg)

Circulation Heaters

387

Tubular and

Ref

(273 mm)

/16

(167 mm)

NPT Inlet & Outlet

- 10 UNC Thread

(4 places)

(19 mm) deep

(2 places)

(89 mm)

Ref 7

/16

(198 mm)

Ref

/16

(373 mm)

(368 mm)

NPT

(146 mm)

(194 mm)

Process Assemblies

Circulation Heaters

8" Flange

8" 150 lb ANSI Flange— WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Application: Clean Water

60 W/in

50 7.1 CFRC721N3➁ 3 CFRC721N11 3 CFRC721N5 2 340 (155)

Steel Tank 75 7.2 CFRC729N3 18-Copper 100 7.3 CFRC737E3

(9.3 W/cm

) 125 7.4 CFRC745E3➁ 6 CFRC745E5➁ 3 410 (186)

150 7.5 CFRC752N5 175 7.6 CFRC760N5 200 7.7 CFRC768E5

Application: Process Water

48 W/in

➄ 50 7.2 CFRN725N3➁ 3 CFRN725N11➁ 3 CFRN725N5➁ 2 350 (159)

Steel Tank 75 7.3 CFRN735N3

18-Incoloy

(7.5 W/cm

100 7.4 CFRN744E3 6 CFRN744E5 3 410 (186)

) 125 7.5 CFRN754M3➁ 6 CFRN754M5➁ 6 445 (202)

150 7.6 CFRN763M5 175 7.7 CFRN773D5 6 530 (241) 200 7.7 CFRN782M5

48 W/in

67 7.2 CFRN726D3X➁ 4 CFRN726D11X➁ 3 CFRN726D5X➁ 2 358 (163)

Steel Tank 100 7.3 CFRN736D3X

24-Incoloy

(7.5 W/cm

133 7.4 CFRN744M3X➁ 8 CFRN744M5X➁ 4 425 (193)

) 167 7.5 CFRN754M3X➁ 8 CFRN754M5X➁ 8 463 (210)

200 7.6 CFRN763M5X 233 7.7 CFRN773D5X 8 554 (252) 267 7.7 CFRN782M5X

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in

➄➅ 30 7.2 CFRNA32N10➁ 3 CFRNA32N3➁ 2 CFRNA32N11➁ 2 CFRNA32N5➁ 1 370 (168)

Steel Tank 40 7.3 CFRNA43E3 18-Incoloy

(3.6 W/cm

23 W/in Steel Tank 53 7.3 CFRNA43M3X 24-Incoloy

(3.6 W/cm

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

388

)

Truck Shipment only

50 7.4 CFRNA51M3➁ 3 CFRNA51M11 3 CFRNA51M5 2 440 (200)

40 7.2 CFRNA33D10X➁ 4 CFRNA33D3X➁ 4 CFRNA33D11X➁ 2 CFRNA33D5X➁ 2 382 (174)

67 7.4 CFRNA51M3X➁ 4 CFRNA51M11X➁ 3 CFRNA51M5X➁ 2 457 (207)

➁ Standard ➄ 240VÅ(ac) can be wired wye and

operated at 480VÅ(ac) 3-phase to produce 1⁄3 more kW and watt density.

No. of

Circuits

➁ 6 CFRC729N5➁ 2 360 (164)

➁ 6 CFRC737E5 3 385 (175)

➁ 6 CFRN735N5➁ 2 380 (173)

➁ 8 CFRN736D5X➁ 4 392 (178)

➁ 3 CFRNA43E11➁ 2 CFRNA43E5➁ 2 410 (186)

➁ 4 CFRNA43M11X➁ 3 CFRNA43M5X➁ 2 425 (193)

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

7.1 47

7.2 55

7.3 623⁄16 (1580) 3911⁄16 (1008) 363⁄16 (919)

7.4 6913⁄

7.5 79

7.6 885⁄16 (2243) 6513⁄16 (1672) 625⁄16 (1583)

7.7 985⁄

480VÅ(ac)

1-Phase

(1199) 24

⁄16

⁄16 (1402) 3211⁄16 (830) 293⁄16 (741)

16 (1773) 47

⁄16 (2014) 5613⁄16 (1443) 535⁄16 (1354)

16 (2497) 75

No. of

Circuits

⁄16

16 (1202) 43

⁄

16 (1926) 72

⁄

480VÅ(ac)

3-Phase

(627) 21

No. of

Circuits

(538)

⁄16

16 (1113)

⁄

16 (1837)

⁄

Weight

lbs (kg)

➁ 6 440 (200) ➁ 6 465 (211)

➁ 6 510 (232)

➁ 6 490 (223)

➁ 6 560 (254)

➁ 8 511 (232)

➁ 8 587 (267)

CONTINUED

➅ Can be wired wye to produce 1⁄3 of the

original kW and watt density (3-phase only).

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

8" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 1-Phase

No. of

Circuits

240VÅ(ac)

3-Phase

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in Steel Tank 40.0 7.3 CFRS743E3 18-Steel 50.0 7.4 CFRS751M3 3 CFRS751M11 3 CFRS751M5 2 440 (200)

(3.6 W/cm

23 W/in Steel Tank 53.0 7.3 CFRS743M3X 24-Steel 67.0 7.4

(3.6 W/cm

30.0 7.2 CFRS732N10

) 60.0 7.5 CFRS762D3

70.0 7.6 CFRS770M3

80.0 7.7 CFRS779M3

40.0 7.2 CFRS733D10X

➁

3 CFRS732N3

➁ 4 CFRS733D3X➁ 4 CFRS733D11X➁

CFRS751M3X➁ 4 CFRS751M11X➁ 3 CFRS751M5X➁

) 80.0 7.5

93.0 7.6 CFR

107.0 7.7

CFRS762D3X➁ 8 CFRS762D11X➁ 4 CFRS762D5X➁

S770M3X➁ 8 CFRS770M11X➁ 6 CFRS770M5X➁

CFRS779M3X➁ 8 CFRS779M5X➁

Applications: Medium Weight Oils, Heat Transfer Oils, Liquid Paraffin

16 W/in

➂

Steel Tank 25.0 7.3 18-Incoloy

(2.6 W/cm

16 W/in Steel Tank 33.0 7.3 24-Incoloy

(2.6 W/cm

17.0 7.2

CFRN725N12➁ 1 CFRN725N13➁ CFRN735N12➁ 2 CFRN735N13➁

33.0 7.4 CFRN744E1

) 42.0 7.5 CFRN7

50.0 7.6 CFRN763M1

58.0 7.7 CFRN773D13 2 530 (241)

67.0 7.7 CFRN782M13

23.0 7.2 CF

54M12➁ 3 CFRN754M13➁

RN726D12X➁ 2 CFRN726D13X➁

CFRN736D12X➁ 2 CFRN736D13X➁

44.0 7.4

) 56.0 7.5

67.0 7.6 CFRN763M13X

77.0 7.7 CFRN773D13

89.0 7.7 CFRN782M13X

CFRN744M12X➁ 4 CFRN744M13X➁ CFRN754M12X➁ 4 CFRN754M13X➁

Applications: Bunker C and #6 Fuel Oils

8 W/in

➂

Steel Tank 16.5 7.4 CFRS751M12 1 CFRS751M13 1 440 (200) 18-Steel 20.0 7.5

(1.3 W/cm

8 W/in Steel Tank 22.0 7.4 CFRS751M 24-Steel 27.0 7.5 CFRS76

(1.3 W/cm

➂

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

12.5 7.3

CFRS743E12➁ 1 CFRS743E13➁

CFRS762D12➁ 2 CFRS762D13➁

) 24.0 7.6 CFRS770M12 2 CFRS770M13 1 530 (241)

27.0 7.7 CFRS779M

17.0 7.3 CFRS743

M12X➁ 1 CFRS743M13X➁

2D12X➁ 2 CFRS762D13X➁

) 32.0 7.6 CFRS770M12

36.0 7.7 CFRS779M1

➁ Standard ➂ Must be operated 3-phase wye only.

➁

➁ ➁ ➁

2➁

No. of

Circuits

2 CFRS732N11 3 CFRS743E11

6 CFRS762D11 6 CFRS770M11 6 CFRS770M5 2 530 (241) 6 CFRS779M5

➁

4 CFRS743M11X

2 CFRN744E13 1 410 (186)

480VÅ(ac)

1-Phase

No. of

Circuits

➁

2 CFRS732N5

➁

2 CFRS743E5 2 410 (186)

➁

3 CFRS762D5

480VÅ(ac)

3-Phase

➁

2 CFRS733D5X

➁

3 CFRS743M5X

➁

3➁

➁

X➁

➁

12➁ 2 CFRS779M13➁

12X➁ 2 CFRS751M13X➁

X➁ 2 CFRS770M13X➁

2X➁ 2 CFRS779M13X➁

No. of

Circuits

Weight

lbs (kg)

1 370 (168)

2 480 (218)

3 610 (277) 2 382 (174)

2 425 (193) 2 457 (208) 4 461 (209) 4 554 (252) 4 636 (289)

1 350 (159) 1 380 (173)

2 445 (202) 2 490 (223)

2 560 (254) 1 358 (163)

1 392 (178) 2 425 (193) 2 463 (210)

2 511 (232) 2 554 (252) 4 587 (267)

1 410 (186)

1 480 (218)

1 610 (277) 1 425 (193)

1 457 (208) 1 461 (209) 1 554 (252) 1 636 (289)

Circulation Heaters

389

Tubular and

Ref

/16

(192 mm)

(318 mm)

(25 mm)

Ref

(400 mm)

(327 mm)

3" Flange Inlet & Outlet

/16

(329 mm)

(292 mm)

Ref

(229 mm)

X 3

(32 x 76 mm)

(22 mm)

(2)

- 10

UNC 2B

(13 mm)

(44 mm)

(76 mm)

NPT

/8"

X 2"

Slot

(22 X 51 mm)

(100 mm)

Process Assemblies

Circulation Heaters

10" Flange

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

8.1 769⁄16 (1945) 6013⁄16 (1545) 679⁄16 (1716)

8.2 84

⁄16 (2135) 685⁄16 (1735) 751⁄16 (1907)

8.3 913⁄16 (2316) 757⁄16 (1916) 823⁄16 (2088)

8.4 99

8.5 106

⁄16 (2516) 835⁄16 (2116) 901⁄16 (2288)

⁄16 (2707) 9013⁄16 (2307) 979⁄16 (2478)

10" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 3-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

Application: Process Water

48 W/in2➄ 262 8.5 CFSN773E5 9 600 (273) Steel Tank 27-Incoloy

(7.5 W/cm2)

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in2➄➅ 60 8.1 CFSNA43N3➁ 3 CFSNA43N5➁ 3 515 (234) Steel Tank 75 8.2 CFSNA51N3➁ 9 CFSNA51N5 3 530 (241) 27-Incoloy

(3.6 W/cm2)

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in

90 8.3 CFSS762E5➁ 3 540 (245) Steel Tank 105 8.4 CFSS770N5 3 600 (272) 27-Steel 120 8.5 CFSS778N5➁ 3 645 (293)

(3.6 W/cm2)

Applications: Medium Weight Oils, Heat Transfer Oils, Liquid Paraffin

16 W/in2➂ 75 8.3 CFSN763N13➁ 3 540 (245) Steel Tank 87 8.5 CFSN773E13➁ 3 600 (273) 27-Incoloy

(2.6 W/cm2)

Applications: Bunker C and #6 Fuel Oils

8 W/in2➂ 30 8.3 CFSS762E12➁ 3 CFSS762E13➁ 1 540 (245) Steel Tank 35 8.4 CFSS770N12 3 CFSS770N13 1 600 (273) 27-Steel 40 8.5 CFSS778N12➁ 3 CFSS778N13➁ 1 645 (293)

(1.3 W/cm2)

390

No. of

Circuits

Weight

lbs (kg)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

➁ Standard ➂ Must be operated 3-phase wye only. ➄ 240VÅ(ac) can be wired wye and operated

at 480VÅ(ac) 3-phase to produce kW and watt density.

➅ Can be wired wye to produce

inal kW and watt density (3-phase only).

of the orig-

⁄3

W A T L O W

Ref

/16

(202 mm)

(318 mm)

(25 mm)

Ref

/16

(411 mm)

(378 mm)

5" Flange Inlet & Outlet

(356 mm)

(292 mm)

(13 mm)

X 3

(32 X 76 mm)

(22 mm)

(2)

- 10

UNC 2B

(44 mm)

(

83 mm)

Ref

/16

(230 mm)

NPT

X 2

" Slot

(22 X 51 mm)

(100 mm)

Tubular and Process Assemblies

Circulation Heaters

12" Flange

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

9.1 76

9.2 843⁄

9.3 91

⁄8 (1953) 6011⁄16 (1541) 6713⁄16 (1722)

8 (2143) 68

⁄8 (2334) 7511⁄16 (1922) 8213⁄16 (2103)

16 (1732) 75

⁄

16 (1913)

⁄

9.4 99 (2515) 8213⁄16 (2103) 8915⁄16 (2284)

9.5 1061⁄

2 (2705) 90

16 (2294) 97

⁄

16 (2475)

⁄

Circulation Heaters

12" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 3-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

Application: Process Water

48 W/in

350 9.5 CFTN773C5 12 650 (295)

Steel Tank 36-Incoloy

(7.5 W/in2)

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in

80 9.1 CFTNA43L5➁ 3 565 (257)

Steel Tank 100 9.2 CFTNA51L5 3 585 (266) 36-Incoloy

(3.6 W/cm2)

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in

140 9.4 CFTS770L5 4 650 (295)

Steel Tank 160 9.5 CFTS778L5➁ 4 700 (318) 36-Steel

(3.6 W/cm2)

Applications: Medium Weight Oils, Heat Transfer Oils, Liquid Paraffin

16 W/in2➂ 117 9.5 CFTN773C13➁ 3 650 (295) Steel Tank 36-Incoloy

(2.6 W/cm2)

Applications: Bunker C and #6 Fuel Oils

8 W/in2➂ 47 9.4 CFTS770L12➁ 3 CFTS770L13 2 700 (318) Steel Tank 54 9.5 CFTS778L12➁ 3 CFTS778L13➁ 2 750 (341) 36-Steel

(1.3 W/cm2)

No. of

Circuits

Weight

lbs (kg)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

➁ Standard ➂ Must be operated 3-phase wye only.

391

Tubular and

Ref

/16

(202 mm)

(318 mm)

(25 mm)

Ref

/16

(414 mm)

(410 mm)

6" Flange Inlet & Outlet

(381 mm)

(292 mm)

(13 mm)

X 3

(32 X 76 mm)

(22 mm)

(2)

- 10

UNC 2B

(44 mm)

(89 mm)

Ref

(235 mm)

NPT

X 2

" Slot

(22 X 51 mm)

(100 mm)

Process Assemblies

Circulation Heaters

14" Flange

Fig. A Dimension B Dimension C Dimension No. in (mm) in (mm) in (mm)

10.1 75

⁄4 (1924) 597⁄16 (1510) 661⁄2 (1689)

10.2 831⁄4 (2115) 6615⁄16 (1700) 74 (1880)

10.3 90

10.4 98

⁄4 (2305) 747⁄16 (1891) 811⁄2 (2070)

⁄4 (2496) 8115⁄16 (2081) 89 (2261)

10.5 1053⁄4 (2686) 897⁄16 (2272) 961⁄2 (2451)

14" 150 lb ANSI Flange—WATROD Element

WATROD Code No. Est. Ship.

Description kW Fig. 240VÅ(ac)

No. 3-Phase

No. of

Circuits

480VÅ(ac)

3-Phase

Application: Process Water

48 W/in

315 10.2 CFWN754J5➁ 15 600 (273)

Steel Tank 375 10.3 CFWN763J5 45-Incoloy

(7.5 W/cm2)

Applications: Forced Air and Gases, Caustic Solutions, Degreasing Solutions

23 W/in

100 10.1 CFWNA43J5➁ 3 570 (259)

Steel Tank 125 10.2 CFWNA51J5 5 590 (268) 45-Incoloy

(3.6 W/cm2)

Applications: Lightweight Oils, Degreasing Solutions, Heat Transfer Oils

23 W/in

150 10.3 CFWS762A5➁ 5 650 (295)

Steel Tank 175 10.4 CFWS770J5 5 700 (318) 45-Steel 200 10.5 CFWS778J5

(3.6 W/cm

)

Applications: Medium Weight Oils, Heat Transfer Oils, Liquid Paraffin

16 W/in Steel Tank 125 10.3 CFWN763J13 45-Incoloy

(2.6 W/cm2)

Applications: Bunker C and #6 Fuel Oils

8 W/in Steel Tank 67 10.5 CFWS778J12 45-Steel

(1.3 W/cm

392

➂ 105 10.2 CFWN754J13➁ 3 600 (273)

)

➂ 60 10.4 CFWS770J12➁ 3 CFWS770J13 3 700 (318)

➁ 5 CFWS778J13➁ 3 780 (354)

No. of

Circuits

Weight

lbs (kg)

➁ 15 650 (295)

➁ 5 780 (354)

➁ 5 650 (295)

All circulation heaters are Assembly Stock unless otherwise noted.

Availability Assembly Stock: Five to seven working days Standard: 10 working days

Truck Shipment only

➁ Standard ➂ Must be operated 3-phase wye only.

W A T L O W

Tubular and Process Assemblies

Circulation Heaters

Build-a-Code

F.O.B.: Hannibal, Missouri

Circulation Heater Base Code Number

General purpose (NEMA 1) terminal enclosure standard

Optional Terminal Enclosure Type S = General purpose with ther mostat (NEMA 1)

W = Moisture resistant (NEMA 4) E = Explosion resistant (NEMA 7) E/W = Explosion/moisture resistant (NEMA 7/4)

Optional Thermostataor Thermocouple

a Thermostat code numbers shown on page 425. Check sensing bulb O.D. against thermowell I.D. to

assure proper fit. For side-mount thermostats, also assure adequate capillary tube length.

b Specify Type J or K thermocouple. If overtemp thermocouple specify orientation horizontal, vertical

up or vertical down.

How to Order

To order a stock circulation heater, please specify:

• Watlow code number

• Volts/watts

• Phase

• Flange or screw plug size

• Tank material

• Options

• Quantity If the circulation heater is to be

configured with options, add the suffix letter(s) to the circulation heater base code number, as indicated on the Build-a-Code chart.

If stock units do not meet your application needs, Watlow can provide made-to-order heaters. Please provide:

• Application (including vessel orientation)

• Volts/watts

• Phase

• Number of circuits

• Watt density

• Sheath material and number of heating elements

• Flange or screw plug size

• Tank material

• Inlet and outlet mating type and size

• Centerline of inlet and outlet

• Terminal enclosure type

• Options

• Quantity

Availability Assembly Stock: Five to seven

working days

➁

Modified Stock

days

Standard: 10 working days Made-to-Order: Six to eight weeks

Options, complexity and quantity may affect availability and lead times. Consult factory.

Replacement Heater Assemblies Only

Replacement heater assemblies available by ordering circulation heater code number and specifying “replacement heater only.”

➁ Assembly Stock units with catalog options.

Five-10 working

Circulation Heaters

393

Tubular and

Conduit Opening

NEMA 1 Terminal Enclosure with Integral Thermostat

1" FNPT Outlet Pipe

Vessel

WATROD Element

4" (100 mm) O.D. Jacket

Insulation

1" FNPT Inlet Pipe

Process Assemblies

Circulation Heaters

Booster Heaters

Booster heaters are ideal for circulating applications requiring less kilowatts, including engine preheating.

Booster heaters are made from a steel or brass 11⁄

4" NPT screw plug

heater and insulated pressure vessel with 1" FNPT inlet and outlet. This assembly also contains an integral thermostat.

Features and Benefits

• Dual voltages simplify stocking and wiring.

• Carbon steel, standard pipe wall vessel is compatible with many applications.

• One inch thick (25 mm) fiber- glass thermal insulation, rated to 750°F (400°C), reduces heat loss.

• Steel jacket (shroud) is fully welded and painted to protect thermal insulation.

Performance Capabilities

• Watt densities to 60 W/in

(9.3 W/cm2)

• Wattages to 3kW

• Voltages to 480VÅ(ac)

• Steel sheath temperatures to 750°F (400°C)

• Copper sheath temperatures to 350°F (175°C)

• Inlet and outlet nozzle

connections are one inch FNPT fittings welded to the vessel.

• General purpose (NEMA 1)

terminal enclosure protects terminals and thermostat.

• Integral thermostat controls

process temperatures from: 60° to 160°F (15° to 70°C)

on copper sheath elements 175° to 550°F (80° to 290°C) on

steel sheath elements

Applications

• Stand by generators

• Peak power trimming generators

• Mobile generator sets

• Earth-moving equipment

• Water heaters

• Lightweight oils

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

394

protect wiring and thermostat from liquid contaminants. To order, add the suffix letter W to the booster heater base code number.

For explosion resistant (NEMA 7) and explosion/moisture resistant (NEMA 7/4) terminal enclosures, see Screw Plug Immersion

Heaters, pages 322 to 324.

W A T L O W

" NPT

Conduit Opening

Removable

Terminal Cover

4" Outside

Diameter

Inlet 1" FNPT

Outlet

1" FNPT

(356 mm)

/16

(176 mm)

/16

(97 mm)

(117 mm)

/16

(532 mm)

Tubular and Process Assemblies

Circulation Heaters

Booster Heaters

Est. Ship.

Description Code No. Weight

kW Phase 120/240VÅ(ac) lbs (kg)

Application: Aqueous Solutions

60 W/in Brass Plug 2.0 1 CBEC10F6 18 (8.2) 2-Copper 2.5 1 CBEC12F6 18 (8.2) (9.3 W/cm2) 3.0 1 CBEC15A6X 18 (8.2)

Application: Lightweight Oils

23 W/in Steel Plug 0.75 1 CBES10B6 18 (8.2) 2- Steel 1.0 1 CBES12P6 18 (8.2)

(3.6 W/cm2)

All units are Assembly Stock For optional housing adders use circulation heater adders.

Availability Assembly Stock: Five to seven days

1.5 1 CBEC8G6 18 (8.2)

0.5 1 CBES7G6 18 (8.2)

F.O.B.: Hannibal, Missouri

Circulation Heaters

How to Order

To order a booster heater, please specify:

• Watlow code number

• Volts/watts

• Options

• Quantity If the booster heater requires an

optional NEMA 4 terminal enclosure, add the suffix letter W to the base code number.

If our Assembly Stock units do not meet your application needs, Watlow can provide a made-to-order unit. For made-to-order units, consult your Watlow representative and provide the following information:

• Application

• Volts/watts

• Watt density

Availability Assembly Stock: Five to seven

working days

➀

Modified Stock

: Five to seven

working days Made-to-Order: Six to eight weeks Options, complexity and quantity

may affect availability and lead times. Consult factory.

• Phase

• Ter minal enclosure type

• Options

• Quantity

➀ Assembly Stock units with catalog options.

395

Tubular and Process Assemblies

Circulation Heaters

Engine Preheaters

Watlow engine preheaters help maintain a desired minimum engine temperature to make starting fast and easy. Also reduces 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 Capabilities

• Watt densities from 45 to 90 W/in (7 to 14 W/cm2)

• Up to 6 kW

•UL®and CSA component recognition to 480VÅ(ac) and 600VÅ(ac) respectively.

• Thermostatically controlled from 60 to 160°F (15 to 70°C)

• Incoloy®sheath temperatures to 1600°F (870°C)

Features and Benefits

• 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-toinstall unit.

• Easy installation with standard,

one inch (25 mm) diameter beaded inlet and outlet nozzles.

Rubber hose connections eliminate the need for threaded fittings and adapters.

• 120/240VÅ(ac) or 240/480VÅ(ac) dual voltages make 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. Check valve will not interfere with adequate thermo-siphoning.

• UL

Applications

• Standby generators

• Primary power generators

• Firepump engines

and CSA component

recognition under file numbers E52951 and 31388 respectively. See pages 268 to 271 for details.

Options

Terminal Enclosures

The following terminal enclosures are available:

• Standard, general purpose (NEMA 1)

• Moisture resistant (NEMA 4)

396

• Explosion resistant (NEMA 7) class 1, groups C and D. For class 1, group B enclosures, consult your Watlow representative.

Threaded Nozzles

Carbon steel threaded inlets and outlets are available for installations using rigid piping or threaded adapters. Threaded nozzles are

Order by adding the suffix letter W (NEMA 4) or E (NEMA 7) to the engine preheater base code number.

typically supplied for firepump applications. To order, specify

threaded nozzles and NPT size.

W A T L O W

Overall Length ±

(10 mm)

(38 mm)

(57 mm)

Ref. Diameter

(4) Mounting Slots

/32

(7 mm X 19 mm)

(117 mm)

(95 mm)

1" (25 mm)

2" (50 mm)

(4)

/4-20

Bolts,

(16 mm)

Threaded

Length

/16

(56 mm)

/16

(157 mm)

(79 mm)

(162 mm)

Up Outlet

(117 mm)

Outlet Nozzle Sized for 1" I.D. (25 mm) hose

Vibration

Isolator Bushings

Mounting Slots

"- 20

Mounting Bolts

(2) Mounting Studs

Drain

NEMA 1 Terminal Enclosure

WATROD Heating Element

Thermowell

Check Valve

Inlet Nozzle Sized for 1" I.D. (25 mm) hose

Tubular and Process Assemblies

Circulation Heaters

Engine Preheaters

Application Hints

• Mount engine preheaters in horizontal position only (as shown in Figures #1, #2 and #3). Consult your Watlow representative if vertical mounting is unavoidable.

• Mount the heater near or below the lowest point on the engine block. Keep outlet nozzle pointed up, as indicated on the tank.

• Estimate kilowatt requirements with the following formula. First determine the engine displacement, then multiply:

F.O.B.: Hannibal, Missouri

English

Cubic inches X 3 = estimated wattage

Metric

Liters X 183 = estimated wattage

Circulation Heaters

Figure 1

Overall Code No. Est. Ship.

Length

Inch (mm) 1-Phase 1-Phase 1-Phase lbs (kg)

Application: Ethylene Glycol/Engine Coolant

1.13 207⁄8 (530) CPBPL2S12➀ 12 (6)

1.50 20

1.69 20

1.88 207⁄8 (530) CPBPN2S12➀ 12 (6)

2.00 20

2.25 20

2.25 2611⁄16 (678) CPBPD2S12➀ 15 (7)

2.50 20

3.00 26

3.75 2611⁄16 (678) CPBPG2S12➀ 15 (7)

4.00 26

5.00 2611⁄16

All preheaters are Stock unless otherwise noted.

Availability Stock: Same day shipment Standard: Four weeks

⁄8

⁄8 (530) CPBPM2S12➀ 12 (6)

⁄8 (530) CPBPC6S12 12 (6)

⁄8 (530) CPBPD6S12 12 (6)

⁄8 (530) CPBPE6S12 12 (6)

⁄16 (678) CPBPF2S12➀ CPBPF7S12 15 (7)

⁄16 (678) CPBPH7S12 15 (7)

120/240VÅ(ac) 208VÅ(ac) 240/480VÅ(ac) Weight

(530) CPBPB6S12 CPBPB2S12➀ 12 (6)

(678) CPBPJ7S12➀ 15 (7)

➀ Standard

397

Tubular and

Overall Length ±

(10 mm)

(38 mm)

(89 mm)

Ref. Diameter

(4) Mounting Slots

/32

(7 mm X 19 mm)

(117 mm)

(95 mm)

1" (25 mm)

2" (50 mm)

(4)

/4-20

Bolts,

(16 mm)

Threaded

Length

/16

(75 mm)

/16

(157 mm)

(162 mm)

(79 mm)

Up Outlet

Inlet

(117 mm)

(38 mm)

Overall Length ±

(10 mm)

(38 mm)

(4) Mounting Slots

/32

(7 mm X 19 mm)

(117 mm)

(111 mm)

1" (25 mm)

2" (50 mm)

(4)

/4-20 Bolts,

(16 mm)

Threaded Length

(57mm)

Ref. Diameter

(162 mm)

(79 mm)

(117 mm)

Up Outlet

Inlet

Process Assemblies

Circulation Heaters

Engine Preheaters

Figure 2

Overall Code No. Est. Ship.

kW Length 277V

Å(ac)

Inch (mm) 1-Phase 3-Phase lbs (kg)

Application: Ethylene Glycol/Engine Coolant

1.5 207⁄8 (530) CPCPB4S12

2.0 207⁄8 (530) CPCPC4S12

2.5 20

3.75 20

⁄8 (530) CPCPE4S12

⁄8 (530) CPCPG4S12

4.0 207⁄8 (530) CPCPH4S12

5.0 20

⁄8 (530) CPCPJ4S12

➀ ➀

➀

➀ ➀

➀

Å(ac)

480V

CPCPB13S12 CPCPC13S12 CPCPE13S12

CPCPG13S12 CPCPH13S12 12 (6) CPCPJ13S12 12 (6)

➀ ➀ ➀

➀

F.O.B.: Hannibal, Missouri

Weight

12 (6) 12 (6) 12 (6)

12 (6)

Figure 3

Overall Code No. Est. Ship.

Length

120/240V

Å(ac)

208V

Inch (mm) 1-Phase 1-Phase lbs (kg)

Application: Ethylene Glycol/Engine Coolant

0.75 155⁄8 (397) CPBPK2S12

1.0 155⁄8 (397) CPBPA6S12

➀

How to Order

To order a Stock, or Standard engine preheater, please specify:

• Code number

• Volts/watts

• Phase

• Options

• Quantity If our Stock units do not meet your

application needs, Watlow will

398

Å(ac)

Weight

➀

9 (4) 9 (4)

provide a made-to-order unit. For made-to-order units, provide the following information:

• Volts/watts

• Phase

• Inlet and outlet type and size

• Ter minal enclosure type

• Mounting orientation

• Options

• Quantity

All preheaters are stock unless otherwise noted.

Availability Stock: Same day shipment Standard: Four weeks

➀ Standard

Availability Stock: Same day shipment

Modified Stock

➁: Five to seven

working days

Standard: Four weeks Made-to-Order: Six to eight weeks

Options, complexity and quantity may affect availability and lead times. Consult factory.

➁ Stock units with catalog options.

W A T L O W

Vent

Drain

Bayonet Vessel

Fill

Expansion Tank (OPT)

Storage Tank

Flange Heater

No-Heat

Tubular and Process Assemblies

Circulation Heaters

Pipe Insert Heaters

Pipe insert immersion heaters permit removing and servicing the heater bundle without draining the liquid being heated.

Heating is accomplished by mounting a flange or screw plug immersion heater inside a pressuretight bayonet pipe vessel. The pipe vessel then mates to a flange connection on a storage tank’s side. Heat transfer between element(s) and tank contents is accomplished by heating the air or heat transfer fluid inside the bayonet pipe for conduction to the tank’s contents.

Performance Capabilities

• Wattages to 100kW

• Voltages to 600VÅ(ac)

• Ratings to 600 lb pressure class

• Incoloy 1400°F (760°C)

• Stainless steel sheath temperatures to 1200°F (650°C)

• Steel sheath temperatures to 750°F (400°C)

Features and Benefits

• Low watt density screw plug or flange heaters, mounted in the

bayonet vessel, provide long life.

sheath temperatures to

• Carbon steel, 304 and 316

stainless steel bayonet vessels

offer compatibility with a wide range of liquids.

• Welded flange on pipe vessel ensures pressure seal.

• Heating element support(s) ensure proper element spacing and maximum heater performance.

• Heat transfer fluid fill/drain and vent couplings ease installation and maintenance.

Circulation Heaters

Applications

• Indirect heating of viscous fluids: Asphalt Tar Molasses Syrup Glue

• Corrosive liquids

• Degreasing fluids

Options

Pipe insert heaters can be supplied with a variety of options, including:

• Appropriate gasket materials

• Passivation cleaning on pipe insert

• European screw plug to flange adapters

Flanges

Flanges to 24 inches nominal pipe size are available in materials compatible with specific application

• CSA certified terminal enclosures

• Stand-off terminal enclosures

• Thermocouple temperature sensors

• Thermostats

• Customer specified materials, sizes and pressure class ratings

needs. For information on flange materials and ratings, consult your Watlow representative.

For descriptions and ordering information about these options, please refer to Flange Immersion

Heaters, pages 340 to 343, or Screw Plug Immersion Heaters,

pages 322 to 326.

399

Tubular and Process Assemblies

Circulation Heaters

Pipe Insert Heaters

Application Hints

• Mount pipe insert heater horizontally.

• Locate pipe insert heaters low in the tank, but above the sludge level.

• Consider a low liquid level sensor to protect against low liquid level conditions.

• Select the proper heat transfer media (air or fluid) to adequately

Bayonet V essels

Bayonet vessels are available up to 14 inches nominal pipe size and 20 feet long. Vessel size is dependent upon the kW

conduct heat from the elements to the bayonet vessel. Consult your Watlow representative for recommendations.

• Select a watt density that’s compatible with the heat transfer media being used.

• Use a sheath high-limit sensing device inside the bayonet vessel to protect against element over-heating.

F.O.B.: Hannibal, Missouri

requirement and element watt density. For more information, please consult your Watlow representative.

• For pipe insert heater assemblies employing heat transfer fluid, use an expansion tank. This will allow for fluid expansion and contraction during heater cycling.

• Insulate the pipe insert heater’s exterior to minimize heat loss.

Caution:

Do not insulate the terminal enclosure.

How to Order

All pipe insert heaters are made-toorder. To order, please specify:

• Application

• Volts/watts

• Phase

• Number of circuits

• Bayonet vessel material

• Storage tank mating flange size

• Maximum bayonet length beyond the storage tank mating flange

• Dimension from heater flange to inside of storage tank wall

• Terminal enclosure type

• Options

• Quantity

Availability Made-to-Order: Six to eight weeks

Options, complexity and quantity may affect availability and lead times. Consult factory.

400

W A T L O W

Tubular and Process Assemblies

Over-the-Side Heaters

To provide portability, easy installation and removal, Watlow makes Over-the-Side heaters in three versions:

• “L” and “O” shaped

• Vertical loop

• Drum These “installed-from-the-top”

heaters slide easily into tanks, with the heated portion immersed along the side or at the bottom.

Over-the-Side heaters are ideal for heating water, oils, solvents, salts and acids. Application versatility is enhanced with optional sheath materials, kilowatt ratings, terminal enclosures and mounting methods.

“L” and “O” Shaped Performance Capabilities

• Incoloy®sheath element watt densities to 60 W/in2(9.3 W/cm2)

• Steel sheath element watt densities to 23 W/in2(3.6 W/cm2)

• Wattages to 50kW

• Voltages to 600VÅ(ac)

Features and Benefits

• Rugged, light-weight construction resists damage

during installation or removal.

• Three 0.475 inch (12 mm)

diameter WATROD heating elements offer one- or three-

phase operation.

• WATROD hairpins are repressed (recompacted) after bending to assure MgO density, dielectric strength, heat transfer and life.

• Four inch (100 mm) sludge legs keep heating elements off the tank’s bottom to help avoid being covered with sediment.

• RTV riser seal prevents moisture from infiltrating electrical areas.

Incoloy®is a registered trademark of Special Metals Corporation.

UL®is a registered trademark of Underwriter's Laboratories, Inc.

• Standard size one inch conduit openings facilitate wiring.

• SRG insulated flexible lead wires, rated to 390°F (200°C), allow factory or field wiring for three or one phase operation.

• Riser materials are compatible

with element sheath materials:

Stainless steel with Incoloy® sheath Steel with steel sheath

All other wetted parts are stainless steel.

• Integral thermowells provide convenient temperature sensor insertion and replacement without draining the fluid being heated.

On stock chart units:

• Five to seven days on all heaters

• 10 working days on special voltages and/or wattages

• 15 working days on special element lengths

1" (25 mm) Conduit Opening

Flexible Lead Wires

Riser

NEMA 4 Terminal Enclosure

Terminal Block

Thermowell

WATROD Element

Sludge Legs

• Moisture resistant (NEMA 4) enclosures standard.

• UL®and CSA component recognition to 480VÅ(ac) and 600VÅ(ac) under file numbers E52951 and 31388 respectively.

Applications

• Water heating

• Freeze protection

• Viscous oils

• Storage tanks

• Degreasing tanks

• Solvents

• Salts

• Caustic solutions

• Paraffin

Over-the-Side

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Watlow Circulation Heater Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual