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Hatch Tightness Testing

A totally new concept for hatch cover tightness testing

For many years, leaking hatch covers have been the cause for commercial disasters and even today claims for wet damaged cargo as resulting from leaking hatch covers remain one of the biggest concerns for ship owners, ship managers, cargo interests and their insurers. Owners, P&I Clubs and insurers are faced with several hundred million dollars of claims for wetting damage to cargo on a yearly basis, not counting consequences of wetting damage related problems such as delays, disruption of schedules and investigations.

Now ultrasonic tightness testing can dramatically improve the no. 1 cause for claims each year - simply, accurately and reliably. It has been proven that ultrasonic tightness testing of hatch covers with the SDT Sherlog can dramatically reduce exposure to claims filed against ships resulting from wet damaged cargo simply, accurately and reliably.

Ultrasound detection
Ultrasonic technology provides the most precise solution in countless applications: tightness, leaks, electrical discharge and mechanical movement. Feel safe not spoil money Ned Marine Perfection in Inspection means relaxing times for you.
 
The sound solution
Technically, ultrasounds are sounds that cannot be heard by the human ear. In other words, sounds with a frequency above 20 kHz. Ultrasounds have a number of specific characteristics that make them useful in industrial applications. Ultrasounds can be very precisely measured. Differences in intensity as the waves travel through a medium or body can be quantified. So various phenomena that can influence the working and quality of machines and systems adversely can be clearly identified - often without interrupting their operation. High frequency sounds are also more directional than lower frequency. This makes it easier to pinpoint the source even in the presence of other background noise.
The other major benefit of ultrasounds is the sheer number of things that produce them. Leaks, stress, electrical discharges, cavitation (the appearance of cavities filled with damp and gas) in flowing liquids, turbulence in flowing gas or liquids; each emits ultrasounds that can be detected and measured.
 
Precise measurements
Ultrasonic detection and measurement can often be carried out relatively simply. The basic set-up in control situations consists of a hand-held unit with headphones, a meter, a sensitivity adjustment and one of a number of nozzles or modules. Some applications also require a transmitter. In production facilities, a number of control points can be set up to run automatically. The results of each point are compared with a fixed parameter, and any unusual results are signalled. The equipment can also be connected to a computer system. The result is rapid, reliable and traceable testing in any number of applications.
 
Please contact us here if you require any more information or a quote.