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Reg. 118, Reg. 119, Reg. 120
END PLATES

 

Tube Plates

Smoke-box tube plates shall be flanged for attachment to the barrel or shall be flat and connected thereto by an external riveted angle ring.



Reg. 119
END PLATES

 

Parts of flat tube plates within the tube nests

a) where the total area of all tube nests in directly fired multi-tubular boilers exceeds 7 sq. ft., stay tubes shall be fitted.

Where the total number of tubes in horizontal multitubular waste heat boilers and direct fired loco type boilers is arranged in one next, the area of which exceed 21 sq. ft., stay tubes shall be fitted.

In all cases where the total number of tubes is arranged in more than one nest, stay tubes shall be fitted.
b) The parts of tube plates which lie outside the nests of tubes shall be stayed or supported wherever the size of the area of plate subject to steam pressure necessitates staying or support, either by marginal stay tubes or other means.


Reg. 120
END PLATES

 

Flanging of End Plates

All flanges shall be a good fit to the shell and flues. Flogging and/or hammering in the fitting of these parts is prohibited. The caulking edges of all flanged plates shall be machined or machine gas cut.

 
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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
Indian Boilers Act 1923 Ibr Forms Home Search Help Contact Us