Yokohama fenders passed DNV inspection
WHALE MARINE PRODUCT CO.,LTD, a professional high-end marine fender manufacturer, has completed a full professional third-party witnessed inspection conducted by DNV Maritime Offshore Class and Industrial Product Assurance on August 19, 2026. Two specifications of pneumatic rubber fenders have passed all scheduled inspection items with complete qualified data, achieving full compliance with international marine standards.
DNV is one of the world’s most authoritative, independent classification societies and industrial inspection institutions, widely recognized in the global marine, offshore engineering and industrial manufacturing fields. DNV’s third-party witnessed inspection adopts strict international standard specifications, full-process on-site supervision and calibrated professional testing equipment, and its inspection reports and qualification conclusions are globally authoritative, credible and universally recognized.
This inspection was carried out in strict accordance international marine rubber fender industry standards, covering the whole chain of product appearance, size accuracy, airtight safety and raw material core performance, which can comprehensively verify the comprehensive quality of pneumatic rubber fenders in actual marine working conditions.
Inspected Product Information
Pneumatic Rubber Fender 2.5mDIA.X4.0mL Serial No.SD-2026-1/4 SD-2026-2/4
Pneumatic Rubber Fender 3.0mDIA.X6.0mL Serial No.SD-2026-3/4 SD-2026-4/4
SCOPE OF INSPECTION
Visual inspection and quantity inspection ISO17357-1:2014 and client applicatin(Date of 2026-08-16)
Dimension inspection ISO17357-1:2014
Witnessed air leakage test ISO17357-1:2014 section 9.4
Witnessed performance test for raw material ISO 37:2024 & ISO 7619-1:2004 & ISO17357-1:2014.
INSPECTION DATA SUMMARY | |||
ITEM | DATA | TESTING EQUIPMENT | |
1 | Leakage test for SD-2026-1/4 SD-2026-2/4 SD-2026-3/4 SD-2026-4/4 | Leakage test requirement: Internal pressure more than 50 KPa Hold time :>30 Min No leakage found. Actual leakage test result: Internal pressure more than 50 KPa Hold time :>30 Min. No leakage found after 30 Min.
| Pressure gauge Cert.No.: F029-2026060904
|
2 | Perfomance test for raw material | Details test value were shown in table 1. | Hardness test machine Cert.No.: F003-2026060901 Pull test machine Cert.No.: LX886-260315054 Thickness measurement machine Cert.No.: L030-2026060904
|
3 | Pneumatic Rubber Fender 2.5mDIA.X4.0mL | SD-2026-1/4 D2.5 (m)(+10%-5%) 2471 L4.0 (m) (+10%-5%)7760 SD-2026-2/4 D2.5 (m)(+10%-5%) 2471 L4.0 (m) (+10%-5%)7759
| Result Acc. |
Pneumatic Rubber Fender 3.0m DIA.X6.0m L | SD-2026-3/4 D3.0 (m)(+10%-5%)2889 L6.0 (m)(+10%-5%) 6070 SD-2026-4/4 D3.0 (m)(+10%-5%)2886 L6.0 (m)(+10%-5%) 6065
| Result Acc. | |
Table 1 Test Item | Requrired value | Test value | Average | Result | |||
Tensile strength (MPa) | ≥ 18 | 20.52 | 20.18 | 18.92 | 19.87 | Acc. | |
Elongation (%) | ≥ 400 | 550.89 | 571.96 | 516.90 | 546.58 | Acc. | |
Hardness (Shore A) | 60±10 | 60 | / | Acc. | |||
Industry Significance & Brand Advantages
The full-pass of DNV 100% full-coverage inspection once again verifies that Whale Marine’s pneumatic rubber fender products have reached the world-class advanced level in manufacturing precision, material performance and safety stability. As a core supplier for high-end marine projects, the company relies on strict international quality control standards and professional manufacturing technology to provide high-reliability marine protection equipment for global port terminals, ship repair docks and offshore engineering projects. In the future, Whale Marine will continue to take authoritative international third-party inspection standards as the benchmark, continuously optimize product performance and production technology, and deliver more high-quality, standard-compliant marine equipment solutions for global customers.
Copyright © Whale Marine Product Co.,Ltd. All Rights Reserved | Sitemap| Powered by 