Air  Process Heaters

High Temp Duct Models
  19-1/2"  Depth
  25-1/2"  Depth
  33-1/2"  Depth
1-1/4" Flow Models
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Application Data


                               
 

DUCT HEATERS - 33-1/2" (851 MM) INSERTION DEPTH - 10 WATT/SQ. IN. - TYPE VHL

480 Volt 3 Ph

Watts

Heater Tubes

Mtg. Flange Width

Approx. Wt.

Models

.

in.

in.

(mm)

lb

(kg)

VHL332-4

4725

6

6 1/2

165.1

42.0

18.3

VHL632-9

9450

12

8 1/2

215.9

48.0

20.9

VHL932-14

14175

18

10 1/2

266.7

50.5

22.0

VHL1232-18

18900

24

12 1/2

317.5

53.0

23.1

VHL1532-23

23625

30

14 1/2

368.3

58.0

25.3

VHL1832-28

28350

36

16 1/2

419.1

63.5

27.7

VHL2132-33

33075

42

18 1/2

469.9

70.0

30.5

VHL2432-37

37800

48

20 1/2

520.7

94.0

40.9

VHL2732-42

42525

54

22 1/2

571.5

108.0

47.0

VHL3032-47

47250

60

24 1/2

622.3

118.0

51.4

DUCT HEATERS - 33-1/2" (851 MM) INSERTION DEPTH - 20 WATT/SQ. IN. - TYPE VHM

480 Volt 3 Ph

Watts

Heater Tubes

Mtg. Flange Width

Approx. Wt.

Models

.

in.

in.

(mm)

lb

(kg)

VHM332-9

9450

6

6 1/2

165.1

42.0

18.3

VHM632-18

18900

12

8 1/2

215.9

48.0

20.9

VHM932-28

28350

18

10 1/2

266.7

50.5

22.0

VHM1232-37

37800

24

12 1/2

317.5

53.0

23.1

VHM1532-47

47250

30

14 1/2

368.3

58.0

25.3

VHM1832-56

56700

36

16 1/2

419.1

63.5

27.7

VHM2132-66

66150

42

18 1/2

469.9

70.0

30.5

VHM2432-75

75600

48

20 1/2

520.7

94.0

40.9

VHM2732-85

85050

54

22 1/2

571.5

108.0

47.0

VHM3032-94

94500

60

24 1/2

622.3

118.0

51.4

DUCT HEATERS - 33-1/2" (851 MM) INSERTION DEPTH - 30 WATT/SQ. IN. - TYPE VHH

480 Volt 3 Ph

Watts

Heater Tubes

Mtg. Flange Width

Approx. Wt.

Models

.

in.

in.

(mm)

lb

(kg)

VHH332-14

14175

6

6 1/2

165.1

42.0

18.3

VHH632-28

28350

12

8 1/2

215.9

48.0

20.9

VHH932-42

42525

18

10 1/2

266.7

50.5

22.0

VHH1232-56

56700

24

12 1/2

317.5

53.0

23.1

VHH1532-70

70875

30

14 1/2

368.3

58.0

25.3

VHH1832-85

85050

36

16 1/2

419.1

63.5

27.7

VHH2132-99

99225

42

18 1/2

469.9

70.0

30.5

VHH2432-113

113400

48

20 1/2

520.7

94.0

40.9

VHH2732-127

127575

54

22 1/2

571.5

108.0

47.0

VHH3032-141

141750

60

24 1/2

622.3

118.0

51.4

 

 

 

 

 

 

 

Construction Details:

 

 

 

 

 

 

 

 

 

 

 

Heater Tubes:

Hairpin shape - high temperature corrosion resistant Incoloy sheath

 

Number of heater tubes as per table

 

 

Width of element bundle equals flange width (noted in table) minus 3-3/4" (95.3)

 

Element height is 8-5/8" (219.1 mm) on all models

 

Support frame positions and supports elements

Mounting:

Flanged includes 1/4" (6.4 mm) predrilled holes

 

Flange is 3/8" (9.5 mm) thick steel

 

 

Flange width is as noted in table

 

 

Flange height is 12" (304.8 mm) on all models

Insulation:

High temperature insulation is included - approx. 3-1/2" (89 mm) thk below flange

Termination:

Screw and nut terminals pre-wired ready for power hook-up

Enclosure:

General purpose metal housing for wiring

Custom:

Custom lengths, watts, and volts are available

 


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