Indian boiler regulations IBR 1950

INDIAN BOILERS REGULATIONS 1950

Regulation No. 2
(a) after clause (C), the following clause shall be inserted, namely:-
“ (cc) “Calculation Pressure”, in relation to a boiler, means the design pressure of any part adjusted to take into account the pressure
drops corresponding to the most severe conditions of pressure drop and hydraulic head;”
(b) For clause (dd), the following shall be substituted, namely:-
“(dd) “Competent Authority” means an authority recognised by the Central Boilers Board in the manner as laid down in Regulation
4A to 4H, as competent to issue certificates to welders for the purposes of Regulation 4(b)(ii) and Regulation 605;”
(c) after clause (dd), the following clause shall be inserted, namely:-
“(ddd) “Design pressure” means:-

(i) in relation to a natural or assisted circulation boiler, the maximum allowable working pressure in the steam drum
of the boiler;
(ii) in relation to a once through forced-circulation boiler, the maximum allowable working pressure at the final
superheater steam outlet;”
(d) After clause (e), the following shall be inserted, namely:-
“(ee) “Evaluation Committee” means a committee constituted by the Central Government consisting of,-
(a) Technical Adviser (Boilers) – Chairman
(b) Chief Inspector (Boilers) of the State where the unit is located – Member
(c) A representative of the manufacturers of boilers/ancillaries in public sector – Member”
(e) For clause (g), the following shall be substituted, namely:-
“(g) “Inspecting Authority” means an authority recognised by the Central Boilers Board in the manner as laid down in Regulation 4A to 4H, as
competent to grant a certificate in Form II, IIA or IIB;”
(f) In clause (h) after sub clause (ii), the following sub-clause shall be inserted, namely:-
“(iii) in respect of:-
(a) (a) approval of drawings of boilers of parts thereto with minor changes, where necessary, except for the drawings of the
first set of boilers or parts there to;
(b) (b) inspection at stages of manufacture including examination of repairs;
(c) (c) signing and issue of certificates in the relevant forms except for the certificates of the first set of boilers or parts
there to; an officer acting on behalf of an Inspecting Authority;”

(g) After clause (h), the following shall be inserted, namely:-
“(hh) “Liaison Sub-Committee” means a committee constituted by the Central Boilers Board under bye-law 3(i) (e) of the Bye-laws
of the Central Boilers Board;”
(h) After clause (m), the following shall be inserted, namely:-
“(n) “Technical Adviser (Boilers)” means Technical Adviser (Boilers) to the Government of India in the Ministry of Industry
(Department of Industrial Development).”

Regulation No.3
(a) In regulation 3, in sub-regulation (2), in paragraph (i), the following shall be added, at the end, namely:-
“and that the methods of manufacture, fabrication and heat treatment conform to the specified Codes or Standards;”
(b) After clause (3) of regulation 3, the following shall be inserted, namely:-
“(4) Where no specific provision is made in these regulations for design or manufacture of any pressure part, the Inspecting Authority may
permit the design, manufacture, stage inspections and certification of such pressure parts including the valves, mountings and fittings
conforming to the codes or standards like B.S., ASME Boiler and pressure vessel code, TEMA, TRD, GOST and JIS, which are known to
be commonly used in industrially advanced countries. The decision of Inspecting Authorities shall be binding on all Registering
Authorities.”
“(5) Notwithstanding anything contained in these regulations, the Inspecting Authority may approve, inspect and issue certificates when the
material used in the construction of the boiler, steam-pipe, economiser, superheater or other pressure parts is not in conformity with these
regulations, but is in conformity with I.S.O. Boiler code, ISO/R-831.
(6) Notwithstanding anything contained in these regulations, the Inspecting Authority may accept, the design or constructional features of
boiler, steam-pipe, economiser, superheater or other pressure parts which is not in conformity with these regulations, but is in conformity
with I.S.O. Boiler code, I.S.O./ R-831.
(7) Notwithstanding anything contained in sub-regulation (1), and subject to the provision of Regulation 7 and 8, the chief inspector of
boilers may register a boiler, and order the issue of a certificate authorizing the use thereof, under any of the following circumstances,
namely:-
(i) When the material intended to be used in the construction of a boiler, steam-pipe, economiser, superheater or other pressure
parts is not in conformity with these regulations, but is in conformity with I.S.O. Boiler code, I.S.O./ R-831.
(ii) When the design and constructional features of a boiler steam-pipe, economiser, superheater or other pressure parts is not in
conformity with these regulations, but is in conformity with I.S.O. Boiler code, I.S.O./ R-831.”
After Regulation 3, the following regulation shall be added, namely:-
“3A. Inspection of Boiler to comply into any Foreign Code:–

Notwithstanding anything contained in these regulations, the inspecting authority may inspect any boiler meant for export during
the various stages of its construction so as to comply with the requirements of any foreign code and may grant a certificate in Form IIA.”
Regulation No.4
(i) In sub-clause (i) of clause (c), the following shall be inserted at the end, namely:-
“In case of Waste Heat Boilers, a certificate in Form II may be issued by the Inspecting Authority of the State, where the boiler is
installed, after completion of construction at site on the strength of the certificates supplied to him in prescribed forms by the owner for the
individual components which are required to be furnished for registration of a boiler under Regulation 4(c), shall be submitted to the
Inspecting Authority of the State, where the boiler is installed, before the commencement of construction of such boiler at the site.”
(ii) After sub-clause (i) of clause (c), the following note shall be added at the end, namely:-
“ Note:- In lieu of Form II, a certificate in Form II-B may be granted by the Inspecting Authority for boilers for which variations from
the standard conditions in respect of material, design and construction features have been permitted by the Board or he Inspection Authority
under sub-regulation (5) or sub regulation (6) of regulation, 3.”
(iii) For paragraph 3 of sub-clause of (iv) of clause (c), the following shall be substituted, namely:-
“Provided further that in respect of the steel made and tested by Well-Known Steel Makers recognised by the Central Boilers Board in
the manner laid down in regulations 4A to 4H, a certificate of Well Known Steel Maker in form IVA shall be accepted in lieu of a certificate from
an inspecting Authority.
Provided also that in respect of the tubes / pipes made and tested by well known tube/pipe maker recognised by the Central Boilers
Board in the manner as laid down in regulations 4A to 4H, a certificate of manufacture and test of well known tube/pipe maker in Form IIID or
IIIE, as the case may be, shall be accepted in lieu of a certificate from an Inspecting Authority;”
(iv) For paragraph 4 of sub-clause (iv) of clause (c), the following shall be substituted, namely:-