Steam lines with conditions listed below fall in the scope of IBR.
- Lines having design pressure (max. working pressure) above 3.5 Kg/cm2 (g).
- Line sizes above 10″ inside diameter having design pressure 1.0 Kg/cm2(g) &above.
- Lines with design pressure less than 1.0 Kg/cm2(g) are excluded.
- Users of steam like steam tracing lines, jacket of the steam jacketed lines, steam heating coil within the equipment are excluded from IBR scope.
- Boiler feed water lines to steam generator, condensate lines to steam generator and flash drum shall be under purview of IBR.
IBR requirements (in brief)
- All materials used on lines falling under IBR must be accompanied with IBR Inspection Certificate in original.
- Alternatively, photocopy of the original certificate duly countersigned and attested by local boiler inspector is acceptable.
- Leading inspection authority viz. Lloyds, EIL etc are authorised
inspection authorities for IBR outside India, whereas, for Indian supply only IBR is the inspection authority.
- Drawings like ‘General Arrangement Drawings’ and Isometrics of lines falling under IBR must also be approved by IBR authority of State in which the system is being installed.
- All welders used for fabrication of IBR system must possess IBR welding qualification certificate.
- IBR system shall be designed to comply with IBR regulations as well as ASME B31.3.
- Design calculations for the same must be approved by IBR authority.
- IBR approval is obtained with requisite fees payable to Indian Boiler Board of the State concerned.
- Steam generators (boilers/heat exchangers) shall require exclusive IBR approval alongwith it’s integral piping upto the final isolation valve.
- The discretion of IBR authority of state is final and binding for the above cases.