Cap. 56activeordinance

Boilers and Pressure Vessels Ordinance

鍋爐及壓力容器條例

Full legislation

s.44

Hydraulic tests

(1)
No hydraulic test of a new boiler or pressure vessel that is being examined for the purposes of
section 24
shall be carried out until the maximum permissible working pressure of the boiler or pressure vessel, as the case may be, has been determined in accordance with this Ordinance.
(Amended
67 of 1978 s. 21
;
87 of 1988 s. 33
)
(2)
On the completion of an hydraulic test, the boiler, steam receiver or air receiver, as the case may be, shall be further examined by the appointed examiner who carried out the test in order to ascertain the condition of any parts thereof that may have been affected by the hydraulic pressure.
(3)
(a)
An hydraulic test of a boiler or steam receiver, other than a new boiler or
                    a new steam receiver that is being examined for the purposes of
section
                        24
, shall be to
                    1
                    1/2 times the pressure that will be specified in the
                    certificate of fitness as the maximum permissible working pressure of the boiler
                    or steam receiver.
(b)
An hydraulic test of a new boiler or steam receiver that is being examined
                    for the purposes of
section 24
shall be to
                    1
                    1/2 times the pressure that will be specified in the
                    certificate of fitness as the maximum permissible working pressure of the boiler
                    or steam receiver.
(Amended
67 of 1978 s. 21
;
E.R.
                            1
                            of
                            2022
)
(4)
An hydraulic test of an air receiver shall, in relation to the pressure that will be specified in the certificate of fitness as the maximum permissible working pressure of the air receiver, be in accordance with a
recognized engineering standard or code or as
follows—
(a)
in the case of a seamless steel air
bottle—
(i)
shall be to twice that pressure where the maximum permissible working pressure does not exceed 14 megapascals;
(ii)
shall be to that pressure plus 14 megapascals where the maximum permissible pressure exceeds 14 megapascals but does not exceed 28 megapascals; and
(Replaced
87 of 1988 s. 19
)
(iii)
shall be to
                        1
                        1/2 times that pressure where the maximum permissible
                        working pressure exceeds 28 megapascals; and
(Amended
E.R.
                                1
                                of
                                2022
)
(b)
in the case of other air
receiver—
(i)
shall be to twice that pressure where the maximum permissible working pressure does not exceed 700 kilopascals; and
(ii)
shall be to
                        1
                        1/2 times that pressure plus 350 kilopascals where the
                        maximum permissible working pressure exceeds 700 kilopascals.
(Replaced
87 of 1988 s. 19
. Amended
E.R.
                                1
                                of
                                2022
)
(5)
An hydraulic test for the purposes of
section 30
or
41
of a pipe that conveys or will or may convey oils, steam or water under pressure
shall—
(Amended
87 of 1988 s. 37
)
(a)
in the case of copper pipes, be to twice the pressure that is or will be specified in the certificate of fitness as the maximum permissible working pressure of the boiler or steam receiver, as the case may be, and, in the case of steel pipes, be to 3 times that pressure; or
(b)
in the case of copper pipes or steel pipes, be to the appropriate hydraulic test pressure specified in a recognized engineering standard or code.
(Amended
87 of 1988 s. 30
)