SECTION 3: CRITICAL CONSIDERATIONS

NOTE: 1. All dimensions are from the Tube surface.

2.Clearances B, C and D can be reduced by 50% after 7 m of tubing downstream from the burner.

3.All measurements are in Millimeters.

FIGURE 13: U-TUBE, OPPOSITE 45° TILT

 

A

 

B

C

D

 

Model A B C

D

BH15

200

1370

1500

560

BH20

200

1530

1650

560

BH25

200

1530

1650

560

BH30

250

1630

1860

560

BH35

250

1780

1960

560

BH40

275

1830

2040

560

BH45

300

1880

2110

560

BH50

300

1930

2160

560

FIGURE 14: U-TUBE, PROTECTIVE GRILLE

 

A

 

Model

 

 

 

 

 

 

A

B

C

D

B

 

C

D

BH15

150

890

1580

760

BH20

150

970

1730

940

BH25

150

970

1730

940

BH30

150

1020

1910

1000

BH35

150

1170

1980

1090

BH40

150

1220

2050

1150

BH45

200

1270

2110

1200

BH50

200

1380

2210

1300

FIGURE 15: U-TUBE, VENTING

Radiant tubes

Fan

Model

BH15

BH20

 

E

 

 

 

Unvented

 

 

 

 

 

F

E

1000

1000

Vented

 

 

 

 

 

 

 

F

500

500

BH25

BH30

BH35

BH40

BH45

BH50

 

 

 

 

 

 

1000

1000

1000

1000

1000

1000

500

500

500

500

500

500

 

 

 

 

 

 

 

 

 

 

 

 

7

Page 9
Image 9
Roberts Gorden BH15 service manual TUBE, Opposite 45 Tilt