Watlow Heater Catalog

Tubular Heaters

gure 54

WATROD Single/Double-Ended Heaters Bend Formations (Continued) Figure 53

gure 53

Figure 54

A

Dia.

K

R 3 (2) Places

B

R 2 (2) Places

R 3 (2) Places

H

K

B

R 1 (1) Place

R 2 (1) Places

H

Dia.

A

L

SL = 2A + 2B + 2K + p R 1 + 2 p R 2 - R 1 - 4R 2

R 1

X Hairpins

SL = 2A + (#)L + B + 2K + (# of R 1 ) p + 2 ( p R 3 ) - (# of R 1 ) R 1 - 2R 3 - R 2 2

re 55

Figure 56

Figure 55

X Hairpins

H

R 1

Dia.

Dia.

C

B

L

M

SL = A + K - 0.86R 1

R 2 (2) Places

A

SL = A + 2C + 2M + (#)L + (# of R 1 ) p + p R 2 - (# of R 1 ) R 1 - 2R 2

71