Backer Hotwatt Tubular Heaters Flanged

Eagle Sensors & Controls is an authorized Backer Hotwatt distributor. Contact us with sales and application support.

Tubular-and-Finned-Tubular

Description

UL and C-UL Recognized – E177353

Features
  • Ratings and sizes other than those listed are available.
  • 150# rating ANSI carbon steel flange.
  • Steel, stainless steel, copper, or incoloy sheathed elements.
  • Optional thermostat and well for temperature control.
  • Element supports in multiple element units for proper element spacing as required.
  • General purpose terminal housing with conduit openings. Optional terminal housing available for special applications.
  • 240v and 480v, single and three phase which are factory wired to your requirements.
  • Long, trouble free service
  • Made in USA
Construction

Construction Flanged Tubular Heater

  1. Terminal housing, NEMA 1 general purpose, for electrical connections.
  2. Standard pipe flange.
  3. Tubular heating element.
Flanged Heater Selection Guide

High Viscosity Oil

Application Solution or
Application		 Alkaline or
Acid Content
(Est.% by Volume)		 Sheath
Material		 Typical
Watt Density
(watts/sq.in.)
 

 

 

 

 

Water and

Very

Mild

Solutions

 Clean Water pH6 to

 

pH8 Neutral

 Copper 45
Process Water or

Very Mild

Solutions

 pH5 to

pH9 2-3%

 Incoloy 45
Mild Solutions 5-6% Incoloy 45
Demineralized or

Deionized Water

 — Incoloy 45
 

 

 

Oil Heating*

 Low Viscosity Oil — Steel 23
Medium Viscosity

 

Oil

 — Steel 15
— Steel 6
 

 

 

 

 

 

 

Specialty Heaters

 Small Tanks —
Process Water

Demineralized Water

Low Viscosity Oil

 pH5-pH9

—

—

 Incoloy

Incoloy

Incoloy

 45
45
23
Pipe Insert — Incoloy 12
Hot Tubs, Spa Treated Incoloy 100
Commercial

Equipment

 Clean

Water

Clean

 

Water

 Incoloy Copper 30

60
Air, Gases,

and

Steam

Heating

 Low Temperature — Stainless Steel 23
High Temperature — Incoloy 23

*The following oil heaters are catalogued based on low viscosity oil. For medium and high viscosity oils, watt densities must be reduced in accordance with the above watt densities.

Installation

The heater is bolted onto a mating flange which is welded to a tank wall or a pipe. Terminal housings to enclose electrical connections are included.

Oil Tank Heater

Oil Tank Heater 

In-Line Fluid or Gas Heater

In-Line Fluid or Gas Heater

Steel Sheath: 150 lb Steel Flange

 3 inch steel flange

3″ Flange: Steel Sheath
No. of Elements: 3
Watts/sq. in: 23
Application: Low Viscosity Oil
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
18 1/16″ BS3-18.06-J 3.0 240 1
18 1/16″ BS3-18.06-J 3.0 240 3
25 3/16″ BS3-25.18-J 4.5 240 1
25 3/16″ BS3-25.18-J 4.5 240 3
33 1/16″ BS3-33.06-J 6.0 240 1
33 1/16″ BS3-33.06-J 6.0 240 3
40 9/16″ BS3-40.56-J 7.5 240 3
48 1/16″ BS3-48.06-J 9.0 240 1
48 1/16″ BS3-48.06-J 9.0 240 3

 5 inch steel flange

5″ Flange: Steel Sheath
No. of Elements: 6
Watts/sq. in: 23
Application: Low Viscosity Oil
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
25 3/16″ BS5-25.18-J 9.0 240 3
33 1/16″ BS5-33.06-J 12.0 240 3
40 9/16″ BS5-40.56-J 15.0 240 3
52 1/16″ BS5-52.06-J 20.0 240 3
65 1/16″ BS5-65.06-J 25.0 240 3
78 1/16″ BS5-78.06-J 30.0 240 3

6 inch steel flange

6″ Flange: Steel Sheath
No. of Elements: 12
Watts/sq. in: 23
Application: Low Viscosity Oil
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
25 1/8″ BS6-25.12-J 18.0 240 3
33″ BS6-33-J 24.0 240 3
40 1/2″ BS6-40.5-J 30.0 240 3
48″ BS6-48-J 36.0 240 3

 8 inch steel flange

8″ Flange: Steel Sheath
No. of Elements: 18
Watts/sq. in: 23
Application: Low Viscosity Oil
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
32 7/8″ BS8-32.87-J 30.0 240 3
43 11/16″ BS8-43.68-J 40.0 240 3
51 7/8″ BS8-51.87-J 50.0 240 3
61 3/8″ BS8-61.37-J 60.0 240 3
61 3/8″ BS8-61.37-J 60.0 480 3
69 7/8″ BS8-69.87-J 70.0 240 3
69 7/8″ BS8-69.87-J 70.0 480 3
78 7/8″ BS8-78.87-J 80.0 240 3
78 7/8″ BS8-78.87-J 80.0 480 3
Stainless Steel Sheath: 150 Steel Flange

 3 inch stainless steel flange

3″ Flange: Stainless Steel Sheath
No. of Elements: 3
Watts/sq. in: 45
Application: Process Water and Very Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
18 1/16″ BT3-18.06-J 6.0 240 1
18 1/16″ BT3-18.06-J 6.0 240 3
25 3/16″ BT3-25.18-J 9.0 240 1
25 3/16″ BT3-25.18-J 9.0 240 3
33 1/16″ BT3-33.06-J 12.0 240 1
33 1/16″ BT3-33.06-J 12.0 240 3
40 9/16″ BT3-40.56-J 15.0 240 1
40 9/16″ BT3-40.56-J 15.0 240 3
48 1/16″ BT3-48.06-J 18.0 240 1
48 1/16″ BT3-48.06-J 18.0 240 3

 5 inch stainless steel flange

5″ Flange: Stainless Steel Sheath
No. of Elements: 6
Watts/sq. in: 45
Application: Process Water and Very Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
18 1/16″ BT5-18.06-J 12.0 240 3
19 13/16″ BT5-19.81-J 15.0 240 3
25 3/16″ BT5-25.18-J 18.0 240 3
33 1/16″ BT5-33.06-J 24.0 240 3
40 9/16″ BT5-40.56-J 30.0 240 3
52 1/16″ BT5-52.06-J 40.0 240 3
65 1/16″ BT5-65.06-J 50.0 240 3
78 1/16″ BT5-78.06-J 60.0 240 3

 6 inch stainless steel flange

6″ Flange: Stainless Steel Sheath
No. of Elements: 12
Watts/sq. in: 45
Application: Process Water and Very Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
25 1/8″ BT6-25.12-J 36.0 240 3
33″ BT6-33-J 48.0 240 3
40 1/2″ BT6-40.5-J 60.0 240 3
48″ BT6-48-J 72.0 240 3

8 inch stainless steel flange

8″ Flange: Stainless Steel Sheath
No. of Elements: 18
Watts/sq. in: 45
Application: Process Water and Very Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
27 7/8″ BT8-27.87-J 50.0 240 3
36 7/8″ BT8-36.87-J 75.0 240 3
43 11/16″ BT8-43.68-J 100.0 240 3
51 7/8″ BT8-51.87-J 120.0 240 3
61 3/8″ BT8-61.37-J 150.0 240 3
69 7/8″ BT8-69.87-J 175.0 240 3
78 7/8″ BT8-78.87-J 200.0 240 3
Copper Sheath: 150 lb Steel Flange

3 inch copper flange

3″ Flange: Copper Sheath
No. of Elements: 3
Watts/sq. in: 45
Application: Water
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
18 1/16″ BC3-18.06-J 6.0 240 1
18 1/16″ BC3-18.06-J 6.0 240 3
25 3/16″ BC3-25.18-J 9.0 240 1
25 3/16″ BC3-25.18-J 9.0 240 3
33 1/16″ BC3-33.06-J 12.0 240 1
33 1/16″ BC3-33.06-J 12.0 240 3
40 9/16″ BC3-40.56-J 15.0 240 1
40 9/16″ BC3-40.56-J 15.0 240 3
48 1/16″ BC3-48.06-J 18.0 240 1
48 1/16″ BC3-48.06-J 18.0 240 3

 5 inch copper flange

5″ Flange: Copper Sheath
No. of Elements: 6
Watts/sq. in: 45
Application: Water
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
18 1/16″ BC5-18.06-J 12.0 240 3
19 13/16″ BC5-19.81-J 15.0 240 3
25 3/16″ BC5-25.18-J 18.0 240 3
33 1/16″ BC5-33.06-J 24.0 240 3
40 9/16″ BC5-40.56-J 30.0 240 3
52 1/16″ BC5-52.06-J 40.0 240 3
65 1/16″ BC5-65.06-J 50.0 480 3
78 1/16″ BC5-78.06-J 60.0 480 3

6 inch copper flange

6″ Flange: Copper Sheath
No. of Elements: 12
Watts/sq. in: 45
Application: Water
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
25 1/8″ BC6-25.12-J 36.0 240 3
33″ BC6-33-J 48.0 240 3
40 1/2″ BC6-40.5-J 60.0 240 3
48″ BC6-48-J 72.0 240 3

6 inch copper flange

8″ Flange: Copper Sheath
No. of Elements: 18
Watts/sq. in: 45
Application: Water
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
27 7/8″ BC8-27.87-J 50.0 240 3
36 7/8″ BC8-36.87-J 75.0 240 3
43 11/16″ BC8-43.68-J 100.0 240 3
51 7/8″ BC8-51.87-J 120.0 240 3
61 3/8″ BC8-61.37-J 150.0 240 3
69 7/8″ BC8-69.87-J 175.0 240 3
78 7/8″ BC8-78.87-J 200.0 240 3
Incoloy Sheath: 150 lb Steel Flange

6 inch copper flange

3″ Flange: Incoloy Sheath
No. of Elements: 3
Watts/sq. in: 45
Application: Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
18 1/16″ BA3-18.06-J 6.0 240 1
18 1/16″ BA3-18.06-J 6.0 240 3
25 3/16″ BA3-25.18-J 9.0 240 1
25 3/16″ BA3-25.18-J 9.0 240 3
33 1/16″ BA3-33.06-J 12.0 240 1
33 1/16″ BA3-33.06-J 12.0 240 3
40 9/16″ BA3-40.56-J 15.0 240 1
40 9/16″ BA3-40.56-J 15.0 240 3
48 1/16″ BA3-48.06-J 18.0 240 1
48 1/16″ BA3-48.06-J 18.0 240 3

6 inch copper flange

5″ Flange: Incoloy Sheath
No. of Elements: 6
Watts/sq. in: 45
Application: Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
18 1/16″ BA5-18.06-J 12.0 240 3
19 13/16″ BA5-19.81-J 15.0 240 3
25 3/16″ BA5-25.18-J 18.0 240 3
33 1/16″ BA5-33.06-J 24.0 240 3
40 9/16″ BA5-40.56-J 30.0 240 3
52 1/16″ BA5-52.06-J 40.0 240 3
65 1/16″ BA5-65.06-J 50.0 240 3
78 1/16″ BA5-78.06-J 60.0 240 3

6 inch copper flange

6″ Flange: Incoloy Sheath
No. of Elements:12
Watts/sq. in: 45
Application: Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
25 1/8″ BA6-25.12-J 36.0 240 3
33″ BA6-33-J 48.0 240 3
40 1/2″ BA6-40.5-J 60.0 240 3
48″ BA6-48-J 72.0 240 3

6 inch copper flange

8″ Flange: Incoloy Sheath
No. of Elements: 18
Watts/sq. in: 45
Application: Mild Solution
Lgth. Inside
Tank A		 Cat. No. Kilo-
watts		 Volts Phase
27 7/8″ BA8-27.87-J 50.0 240 3
36 7/8″ BA8-36.87-J 75.0 240 3
43 11/16″ BA8-43.68-J 100.0 240 3
51 7/8″ BA8-51.87-J 120.0 240 3
61 3/8″ BA8-61.37-J 150.0 240 3
69 7/8″ BA8-69.87-J 175.0 240 3
78 7/8″ BA8-78.87-J 200.0 240 3
Dimensions

SF-13B

Available on: 3″, 5″, 6″, 8″, flanged. Enclosure sizes vary with element sizes.

XS-55: Thermostat control. Integral bulb and capillary control with thermowell. Two temperature ranges available. Specify XS-55 (0° – 100° F) or XS-55 (60° – 250° F).

XS-55

Available on: 3″, 5″, 6″, 8″, flanged. Enclosure sizes vary with element sizes.