Message from
Chairman of Central Boilers Board


About Central Boilers
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

Reg. 128
FURNACES

 

Uptakes

a)

The uptakes shall be formed from weldless steel pipes or from plate or strip rolled and electric resistance welded or fusion butt welded pipes by electric arc process. The tolerances on these pipes shall comply with the requirements of Regulation 345.

b) As an alternative to riveting the uptake may be fusion butt welded by the electric arc process to the upward flange of the opening in the firebox crown plate provided the conditions as to fusion welding in Regulation 125 are observed. The edges of the upward flange and the adjacent end of the uptake shall be beveled in accordance with Fig. 3 or Fig. 4. The depth of the crown plate opening from the commencement of the curvature of the flanging radius shall be not less than twice the plate thickness with a minimum of 1 inch. On completion of welding the uptake and crown plate shall be effectively stress relieved by heat treatment.

Where the firebox crown plate is also fusion welded to the body of the firebox, the firebox complete with uptake shall be effectively stress relieved by heat treatment on completion of the welding.
c) Welded uptakes shall be so arranged that the weld is directly facing the longitudinal centre line of the manhole.
 
Back   Top
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