Watlow Heater Catalog

Tubular Heaters

E xtended C apability

9 / 16 " (14 mm)

Extended Capabilities for FIREBAR Single/Double-Ended Heaters

Options for One-Inch and 5 / 8 -Inch FIREBAR • Electropolished finish • Bulkhead, single leg • Custom formations • Terminal enclosures (general purpose, moisture resistant, and moisture/corrosion resistant) • Custom wattage tolerance (±5%)

Single Leg Threaded Bulkhead

WATROD SECT A threaded stainless steel bushing with flange on the heater sheath provides rigid, leak-proof mounting through tank walls. A gasket, plated steel washer and hex nut are included (brazed only, available). To order, specify single leg threaded bulkhead .

Gasket

Wall

Washer

Nut

C

A

B

D b

Illustration for 1-inch FIREBAR

ket

l Washer

Heater Size in. (mm)

Thread

Nut

Size

5 / 8

7 / 8 -14 UNF-2A 3 / 4 -16 UNF-2A

(15.9) (25.0)

1

Illustration for 5 ⁄

8 -inch FIREBAR

Gasket

Wall

Washer

9 / 16 " (14 mm)

Nut

C

A

B

asket

Wall

Washer

9 / 16 " (14 mm)

Nut

Wall

1 1 / 4 " (32 mm)

15 / 16 " (24 mm)

3 / 4 " (18 mm)

2 1 / 4 " (57mm)

0.235" (6 mm)

97

3 / 16 " - 16 UNF - 2A