SOLAS Pipefitting case studies
SOLAS Pipefitting · Put your knowledge to work in context.
The SOLAS Pipefitting assessment is a multiple-choice examination aimed at pipefitters, marine pipe fabricators and engine-room maintenance staff who work on piping covered by SOLAS-related shipboard requirements - for example fire main, ballast, bilge, fuel, cooling-water and steam lines. It checks whether you can read an isometric and a specification, choose and join pipe and fittings correctly, allow for expansion and support the line, pressure-test and inspect the finished work, and recognise the safety and regulatory rules that govern it. The SOLAS Pipefitting case studies are 5 cases and about 2,803 words.
1Fire Main Repair: Schedule Substitution and Test Pressure
During a dry-docking of a 45,000 DWT product tanker, the class surveyor finds a 3 m section of the 150 mm fire main in the engine room with heavy external corrosion and pitting. The approved drawing specifies Schedule 80 black steel and a design pressure of 0.7 MPa; the line is part of the main fire loop serving two hydrants and the emergency fire pump.
597 words, about 3 min2Fuel Oil Line: Thermal Movement and Support Failure
On a 28,000 DWT chemical tanker, a 150 mm NB carbon steel fuel oil transfer line runs 32 m along the open main deck from a transfer pump to a settling tank. The line was re-routed during a recent yard period.
553 words, about 3 min3Bilge System Deficiencies Found During PSC Inspection
During a PSC inspection of a 90 m general cargo ship, the inspector traces the bilge system. The bilge main is 100 mm bore and runs fore-and-aft.
576 words, about 3 min4High-Pressure CO2 Piping: Unapproved Copper and Brazed Repair
During a scheduled repair of a 2,500 GT cargo ship, the yard removes a 3 m section of the 25 mm nominal bore high-pressure CO2 discharge pipe serving the machinery space. The original pipe is seamless steel, butt-welded, with a design pressure of 15 MPa.
548 words, about 3 min5Isometric Discrepancy on a Stainless Sanitary Spool
An 80 mm nominal bore stainless steel sanitary discharge spool is prefabricated for a passenger ship from an approved isometric. The drawing shows a 45° branch at elevation +2,450 mm, with a centerline dimension of 1,200 mm from the bulkhead penetration, and a butterfly valve with the handwheel to port.
529 words, about 3 min