Watlow Heater Catalog

Cartridge/Insertion Heaters

Metric FIREROD Cartridge Heaters Mounting Options

Threaded Fittings DIN Thread Size

Locating Ring

3.6 mm (0.14 in.)

a

A A

B B

Metric Min. FIREROD No-Heat Thread

A stainless steel locating ring can be used as a retaining collar to position a FIREROD if mounting requirements are not critical. For LA, specify the location if the no-heat extension option is requested. On FIRERODs with crimped on leads without the LA option, the locating ring will be located on the last 1 / 4 in. (6 mm). To order, specify locating ring .

Length of Threaded

Diameter Length

Size

A

B

*

mm

Optional Fitting Location 16 ( 5 / 8 ) M10 X 1.0 10.0 ( 3 / 8 ) 12 ( 7 / 16 ) 6.0 ( 1 / 4 ) mm (in.) DIN 13 mm (in.) mm (in.) Section B

6.5 8.0

16 ( 5 / 8 ) M12 X 1.0 11.0 ( 7 / 16 ) 14 ( 1 / 2 ) 18 ( 11 / 16 ) M14 X 1.5 11.5 ( 7 / 16 ) 17 ( 5 / 8 ) 19 ( 3 / 4 ) M16 X 1.5 12.0 ( 7 / 16 ) 19 ( 3 / 4 )

6.5 ( 1 / 4 ) 6.5 ( 1 / 4 ) 6.5 ( 1 / 4 )

10.0 12.5 16.0 20.0

20 ( 3 / 4 ) M20 X 1.5 15.0 ( 3 / 5 ) 24 ( 15 / 16 ) 9.0 ( 3 / 8 )

22 ( 7 / 8 ) M26 X 1.5 16.0 ( 5 / 8 ) 30 (1 3 ⁄

16 ) 10.0 ( 3 / 8 )

Locating Ring Specifications

a Swaged-in unit pictured.

1 / 4

3 / 8

1 / 2

5 / 8

3 / 4

**

Diameter

Minimum Unheated

Ring O.D. in. (mm)

1 / 2 (13)

5 / 8 (16)

3 / 4 (19)

7 / 8 (22)

1 (25)

Threaded fittings allow for fast, water-tight installation of the heater into a threaded hole. Double threaded fittings are also available. See dimensions noted on the DIN Thread Size and NPT Thread Size charts or contact your Watlow representative if application exceeds limitations shown. To order, specify stainless steel threaded fittings . National Pipe Thread (NPT) Thread Size

Flanges

1.6 mm ( ⁄ in. )

C D

¿ a

H

Metric

Min.

Thread

Stainless steel flanges are a convenient mounting method as well as a way to position a heater within an application. These flanges can be located in any no-heat section of the heater sheath. To order, specify flange , flange size and location.

FIREROD No-Heat Diameter Length

( 1 / 8 ) ( 1 / 4 ) ( 1 / 4 ) ( 3 / 8 ) ( 1 / 2 ) ( 3 / 4 ) (in.) Size NPT

Length of Threaded

A

B

mm

19 ( 3 / 4 ) 22 ( 7 / 8 ) 22 ( 7 / 8 ) 25 (1) 28 (1 1 / 8 ) mm (in.)

13.5 ( 11 / 20 ) 11.0 ( 7 / 16 ) 9.5 ( 3 / 8 ) 17.0 ( 5 / 8 ) 14.0 ( 1 / 2 ) 13.0 ( 1 / 2 ) 17.0 ( 5 / 8 ) 14.0 ( 1 / 2 ) 13.0 ( 1 / 2 ) 20.0 ( 7 / 8 ) 17.5 ( 11 / 16 ) 14.0 ( 11 / 20 ) 23.0 ( 9 / 10 ) 22.0 ( 15 / 16 ) 16.0 ( 5 / 8 ) 26.0 (1) 29.0 (1 1 / 8 ) 19.0 ( 3 / 4 ) mm (in.) mm (in.) Section

6.5 8.0

10.0 12.5 16.0 20.0

Metric FIREROD Diameter

32 (1 1 ⁄

4 )

Flange

D

C

H

mm

Size mm (in.) mm (in.) mm (in.)

25.4 (1) 19.1 ( 3 / 4 ) 3.7 ( 9 / 64 )

FS

6.5, 8, 10,12.5, 16 2 6.5, 8, 10, 12.5, 16, 20

FM 38.1 (1 1 / 2 ) 28.6 (1 1 / 8 ) 4.3 ( 3 / 16 )

51.0 (2) 38.1 (1 1 / 2 ) 5.3 ( 13 / 64 )

16, 20

FL

a Swaged-in unit pictured. 2 FS flange for 16 mm diameter is without holes.

52