1 To enable pipes of reception facilities
to be connected with the ship’s discharge pipeline, both lines
shall be fitted with a standard discharge connection in accordance
with the following table:
STANDARD DIMENSIONS OF FLANGES FOR DISCHARGE CONNECTIONS
| Description
|
Dimension
|
| Outside diameter
|
210 mm
|
| Inner diameter
|
According to pipe outside
diameter
|
| Bolt circle diameter
|
170 mm
|
| Slots in flange
|
4 holes 18 mm in diameter
equidistantly placed on a bolt circle of the above diameter, slotted to the
flange periphery. The slot width to be 18 mm
|
| Flange thickness
|
16 mm
|
Bolts and
nuts:
quantity and diameter
|
4, each of 16 mm in diameter and of
suitable length
|
| The
flange is designed to accept pipes up to a maximum internal diameter of 100
mm and shall be of steel or other equivalent material having a flat face.
This flange, together with a suitable gasket, shall be suitable for a
service pressure of 600 kPa.
|
For ships having a moulded depth
of 5 metres and less, the inner diameter of the discharge connection
may be 38 millimetres.
2 For ships in dedicated trades, i.e. passenger
ferries, alternatively the ship’s discharge pipeline may be
fitted with a discharge connection which can be accepted by the Administration,
such as quick connection couplings.