Cygnus 1 ultrasonic thickness gauge certified to Class 1

Cygnus Instruments Ltd - Cygnus 1
Cygnus Instruments Ltd – Cygnus 1

The Cygnus 1 ultrasonic thickness gauge is certified to Class 1, Div 1 (“Zone 0”) for ATEX, IECEx and CSA-US. The Cygnus 1 is specifically designed for measuring metal thickness to determine wastage or corrosion in Zone 0, Zone 1 hazardous and potentially explosive environments. It has a highly durable, shock-proof and splash-proof (IP65 rated) construction – this heavy-duty unit is supplied ready to use, and offers up to 12 hours continuous testing before recharge is necessary, with no plant shutdown or hot work permit required.

The exterior houses a set of components, viewed via a bright LED display with polarised filter, in either metric or imperial measurement to suit the user’s preference. These features include an echo strength indicator to aid measurement, measurement self-verification to ensure Continue reading “Cygnus 1 ultrasonic thickness gauge certified to Class 1”

Practical aspects of the carriage of containers on dry bulk vessels

Practical aspects of the carriage of containers on dry bulk vessels
Practical aspects of the carriage of containers on dry bulk vessels

Mark Dunbar, Surveys Manager at West P&I Club, has highlighted practical aspects on the carriage of containers onboard dry bulk vessels. And as he says, individual cases will vary widely so the following should not be taken as exhaustive, but as an aide memoire for the major factors that need to be considered and addressed.

– Bridge visibility needs to meet SOLAS requirements.
– Vessel stability including bending moments and shear forces to be verified as within limits.
– Container stacking weights – check CSC plate for maximum allowable – US 53 foot containers are usually significantlylower than standard ISO containers.
– Strength of tanktop/hatch covers/deck plating – remember all the weight of a container is distributed Continue reading “Practical aspects of the carriage of containers on dry bulk vessels”

Preventing wet cargo damage

Preventing wet cargo damage - Image: Swedish Club
Preventing wet cargo damage – Image: Swedish Club

Claims relating to wet cargo damage are all too frequent. Many of these can be avoided entirely with a robust pre-loading condition checking procedure. While humidity and condensation are inevitable challenges through the supply chain, pre-existing CTU damages should be an easy check.

As TT Club regularly articulates, around 65% of cargo damage incidents are attributable in part to the way that goods are packed within the cargo transport unit (CTU). The CTU Code and the more recent ‘CTU Code – a quick guide’ and complementary container packing checklist published by the Cargo Integrity Group, provide invaluable guidance for actors in the supply chain to mitigate such risks. Continue reading “Preventing wet cargo damage”

Failure of diesel generator caused engine room fire onboard Master Dylan

Failure of diesel generator caused engine room fire onboard Master Dylan
Failure of diesel generator caused engine room fire onboard Master Dylan

National Transportation Safety Board (NTSB) has released an accident report focusing on the engine room fire aboard fishing vessel Master Dylan. At about 0745 on 1 December 2020, the fishing vessel Master Dylan was trawling for shrimp in the Gulf of Mexico when an explosion occurred in the engine room.

The captain attempted to extinguish the fire, but was unsuccessful. A nearby fishing vessel rescued the crew from the burning vessel. An offshore supply vessel eventually extinguished the fire using water cannons. Master Dustin II, a vessel owned by the same company, proceeded to tow the Master Dylan to the nearest point of land. But in doing so, the Master Continue reading “Failure of diesel generator caused engine room fire onboard Master Dylan”

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