Pneumatic fender Compression-recovery test

 We did compression test for the pneumatic fender 1.7mdia.x3mL today.

As mentioned in ISO 17357-1:2014《 Ships and marine technology — Floating pneumatic rubber Fenders》The performance of high pressure floating pneumatic rubber fenders shall be specified in terms of guaranteed energy absorption (GEA), reaction force at GEA deflection, and hull pressure at GEA deflection.

Compression-recovery test is one of the most important characters to prove the yokohama fender`s quality and working ability.

Fenders are compressed and released repeatedly over a very short period of time. Therefore, a compression-recovery test shall be performed to confirm that the fenders have sufficient compression recoverability.

After compression of the fender to the guaranteed energy-absorption deflection, the fender shall be kept in this compressed state for 1 min, then the load shall be released instantaneously. The fender diameter shall recover more than 97 % of its original diameter within 5 min after the load to the fender is released.

The test shall be performed using an actual-size fender or a miniature-size fender larger than one-fifth the size of the actual diameter. EXAMPLE ,In the case of fenders 4,5 m in diameter, the performance shall be confirmed from the test result of a fender 4,5 m in diameter or a fender larger than 0,9 m in diameter.

Whale marine produced and tested the pneumatic fender strictly according to ISO 17357-1:2014 to assure its high quality. Manufacturer test certificate would be provided against delivery.