Page 310 - International safety guide for oil tankers and terminals

INTERNATIONAL SAFETY GUIDE FOR OIL TANKERS AND TERMINALS

Throughput at 12 metres/second Velocity
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Hose Nominal Inside Diameter Throughput

3
Inches Millimetres m /hour Barrels/hour
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี
6 152 788 4,950
8 203 1,400 8,810
10 254 2,180 13,700
12 305 3,150 19,800
16 406 5,600 35,200
20 508 8,750 55,000
24 610 12,600 79,300
30 762 19,700 123,000

Table 18.1 – Throughput v. inside diameter at velocity of 12 m/s

Throughput at 15 metres/second Velocity

Hose Nominal Inside Diameter Throughput

3
Inches Millimetres m /hour Barrels/hour
6 152 2,730ึ 985 6,190
8 203 1,750 11,000
10 254 17,200
12 305 3,940 24,700
16 406 7,000 44,000
20 508 10,900 68,000
24 610 15,700 99,100
30 762 24,600 154,000

Table 18.2 – Throughput v. inside diameter at velocity of 15 m/s

18.2.6 Inspection, Testing and Maintenance Requirements for
Dock Cargo Hoses

18.2.6.1 General

Cargo hoses in service should have a documented inspection at
least annually to confirm their suitability for continued use. This
should include:
A visual check for deterioration/damage.

A pressure test to 1.5 times the Rated Working Pressure
(RWP) to check for leakage or movement of end fittings.
(Temporary elongation at RWP should be measured as an
interim step.)
Electrical continuity test.

Hoses should be retired in accordance with defined criteria.

This guidance also applies to any ship’s cargo hoses used for
ship/shore connections and any other flexible hose connected to

276 © ICS/OCIMF/IAPH 2006