Ultrasonic Hatch Cover Leak Test

U.S. Marine Survey is DNV approved service supplier as "Tightness testing of closing appliances using ultrasonic equipment"

Hatch cover leak test is being performed on the hatch covers of a ship’s cargo hold (dry bulk carrier/ general cargo) to determine the watertightness of the hatch cover.

This test is crucial because it ensures that the cargo is protected against water damage during transport. A leaking hatch cover could cause significant damage to the cargo and, in extreme cases, lead to the sinking of the ship. Consequently, hatch cover leak tests are typically mandated by international maritime regulations and are regarded as an essential element of any voyage’s safety measures.

In U.S. Marine Survey, we conduct tests using the world-leading fully ABS Type-Approved & RINA-Accepted, the watertight integrity tester for inspecting watertight and weathertight seals on ships and marine structures such as warships and offshore oil & gas platforms, where the test can be performed effectively and quickly. The device used by us also accepted by P&I clubs, and it is ABS (American Bureau Shipping) type approved.

WHY IT CAN BE MOST PREFERRED THAN HOSE TEST & CHALK TEST..?
1- To carry out hose test, the cargo hold must be empty.
2- Hose test cannot be achieved in sub-zero conditions.
3- It was difficult to ascertain the leaks in the cross joint & side joint accurately in hose test.
4- When carrying out the hose test, scupper deck drains to be open, potentially causing accurately.
5- Chalk test gives only an indication of poor compression & potential leaks. Chalk testing is not a leak-detecting test.
6- Leaks in mechanical ventilators & cross joints cannot be obtained during chalk test.

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