TST SEAL Receives Certification from Six Major Global Classification Societies

Recently, TST CABLE & TST SEAL Technology has achieved another milestone in the field of marine vessel permeable sealing technology and safety—its independently developed MCT permeable sealing systems (models TSWS and TCWS) have officially received type approval certificates (certificate number: TAF000021G) from Det Norske Veritas (DNV), a globally authoritative certification body in the marine field. This signifies that TST CABLE & TST SEAL products fully meet the highest international safety standards in core performance aspects such as fire resistance, watertightness, and airtightness, building a solid technical barrier for the safe operation of ships and marine engineering equipment worldwide.

International Authoritative Certification: DNV’s Rigorous Endorsement As a core member of the International Maritime Organization (IMO) and one of the world’s top ten classification societies, Det Norske Veritas (DNV) is renowned for its rigorous technical standards and global credibility in its certification system. This certification rigorously adhered to international standards such as DNV-SI-0364-SOLAS (July 2021 version), comprehensively evaluating the TST CABLE & TST SEAL permeable sealing system, covering key indicators such as material performance, fire integrity, and sealing reliability. This certification also received official recognition from Transport Canada, demonstrating the product’s international applicability and technological leadership.

Core Technology: Dual System Safeguards Ship Safety The TST CABLE & TST SEAL MCT permeable sealing system is specifically designed for A-60 grade steel bulkheads and decks on ships, offering multiple protective features:

Ultimate Fire Resistance:** Tested according to the IMO 2010 International Code of Fire Testing Procedures, it maintains structural integrity for 60 minutes at 1000°C, effectively preventing the spread of fire.

Superior Sealing:

TCWS Circular System: Supports up to 2.7 bar watertight/airtight seal (test pressure 4 bar), suitable for conduit penetration.

TSWS Rectangular System: Supports 2 bar watertight/airtight seal (test pressure 3 bar), suitable for scenarios with dense cable penetration.

Resistant to Extreme Environments: Utilizes a combination of EPDM rubber sealing modules and a stainless steel frame, resistant to salt spray corrosion and vibration shock, achieving an IP68 protection rating.

Flexible Adaptability: Modular design supports diameter adjustment, accommodating various cable and conduit specifications, with reserved expansion space, significantly reducing maintenance costs.

Global Market Strategy: From Domestic Substitution to International Leadership

This DNV certification holds triple strategic significance for TST CABLE & TST SEAL:

A Milestone in Technological Independence: TST CABLE & TST SEAL is one of the very few leading domestic MCT manufacturers to simultaneously obtain DNV certification for both rectangular and circular bulkhead and deck perforation sealing systems. This signifies that Chinese companies have successfully broken the long-standing monopoly of international giants in the high-end marine perforation sealing field, achieving a major breakthrough in the independent control and domestic substitution of key technologies.

A Complete Certification System: Following CCS (China), ABS (USA), RS (Russia), BV (France), and RINA (Italy) certifications, the DNV certification marks TST CABLE & TST SEAL’s completion of certification by all six major global classification societies. This not only strongly endorses the world-class quality of TST CABLE & TST SEAL products but also powerfully demonstrates the confident rise of Chinese manufacturing in the high-end marine equipment sector.

A Global Passport: DNV certification is recognized by over 100 flag states worldwide, with particularly high acceptance in the European and North American markets. It provides TST CABLE & TST SEAL with core access qualifications to expand into high-end international shipping markets (such as LNG-powered ships and green methanol-fueled ships).

Obtaining DNV certification is a comprehensive reflection of TST CABLE & TST SEAL’s core technological strength, lean manufacturing capabilities, and international standard implementation, laying a strong foundation for the company’s future competitiveness in the global MCT market. For TST CABLE & TST SEAL Technology, obtaining DNV certification is a crucial passport to the European and high-end maritime markets. In the future, TST CABLE & TST SEAL Technology will continue to pursue “zero-defect safety” with “higher precision,” contributing indispensable Chinese wisdom and strength to the high-quality and safe development of the global shipping and marine engineering industries.