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Reg. 216, Reg. 217, Reg. 218, Reg. 219

BOILER AND SUPERHEATER TUBES SUBJECT TO INTERNAL PRESSURE

The maximum working pressure for the tube shall be determined by equation No.87 (see Regulation 338).

The maximum thickness of the tubes shall comply with the table given in Regulation 338 (b).


Reg. 217

HEADERS AND SECTION BOXES OF WATER TUBE BOILERS

See Eqn.(88), Reg. (340).


Reg. 218

BOILER TUBES (SMOKE ) SUBJECT TO EXTERNAL PRESSURE

Steel and Wrought Iron Tubes - (a) The maximum working pressure for the tubes shall be : -

W.P. = 100 (t - 6) Eqn.(56)
D

Where
t = the thickness of the tubes in 100ths of an inch,

D = the external diameter of the tubes in inches.

(b) No tube shall be less than 12 S.W.G.(.104") thick.


Reg. 219
HEADERS AND SECTION BOXES OF WATER TUBE BOILERS

Brass and Copper Tubes

The thickness of tapered brass and copper smoke tubes for locomotive boilers shall, in the case of tubes of an external diameter of 1-1/2 to 1-7/8 inches inclusive, be not less than 12 S.W.G. (.104inch) at the smoke-box end and10 S.W.G.(.128 inch) at the other end in the case of tubes of an external diameter of 2 to 2-3/8 inches inclusive, the thickness, at the smoke-box end shall not be less than 11 S.W.G. (.116 inch) and at the other end not less than 9 S.W.G. (.144 inch).

 
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Message from Chairman of Central Boilers Board About Central Boiler Board History of Indian Boiler Regulations Foreword Contents Chapter Wise Contents Regulation Wise List of Amendments
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