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Reg. 105, Reg. 106, Reg. 107
SHELLS, ANGLE RINGS, BUTT STRAPS, ETC.

 

Angle Rings

Angle rings for the attachment of end plates to shell plates and/or flue sections shall be rolled or machined so that they fit closely to the flat and cylindrical surfaces to be connected, and shall be machined or machine gas cut on the caulking edges.


Reg. 106
SHELLS, ANGLE RINGS, BUTT STRAPS, ETC.

 

Thickness of Shell Angle Rings

Where shell plates and end plate are connected by means of an external angle ring, the angle rings shall be no less in thickness than as follows :-

(1) For shell plates upto and including 5/8 inch in thickness. 10 per cent in excess of the thickness of the shell plate.
(2) For shell plate exceeding 5/8 inch in thickness and upto and including 1 inch in thickness.
90 per cent of the thickness but not less than 11/16 inch.
(3) For shell plates over 1 inch in thickness. Made from angle bar having a section thickness of 1 inch.


Reg. 107
SHELLS, ANGLE RINGS, BUTT STRAPS, ETC.


Welded Shell Plates

The requirements of welded shells shall be covered by the provisions made in the Regulations in Chapter V or Chapter XII, as the case may be.

The working pressure of such shells shall comply with Regulation 176 where J = 100 and C = 2.75.

 
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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