The CSD NOFIRNO flexible pipe penetration sealing system is designed for both single and multiple metallic and GRP pipe applications, offering fire protection for A60 to H120, as well as uninsulated A0 and H0 bulkheads and decks.
The sealing system effectively reduces vibration, stress and cathodic corrosion, and has undergone extensive age testing to ensure 50 years of reliable sealing performance. The system has also been proven to provide blast resistance and fire protection during a 2-hour jet fire test, maintaining watertight integrity even after a 1-hour (A60) fire exposure.
In collaboration with CSD Sealing Systems, Thorne & Derrick offers an extensive range of duct seals designed to deliver gas-tight, watertight, fire-resistant and rodent protection sealing for cable duct entries and pipe penetrations in industrial and hazardous area Zones in both onshore and offshore solutions.
Fire Rated Sealing Systems & Protection Defined
Offshore fire ratings, including A0, A60, H0, H60 & H120, are industry classifications that determine the ability of cable and pipe penetration sealing systems to withstand fire in potentially explosive atmospheres and hazardous area locations (Zone 1 & Zone Flammable Gas). The “A” classification is associated with resistance to cellulosic fires, while the “H” classification pertains to protection against hydrocarbon fires in offshore locations.
A0 – Classification used to indicate that a cable or pipe seal can resist flames and smoke for up to 60 minutes without insulation protection against heat
A60 – Classification withstands a cellulosic fire for up to 60 minutes while maintaining structural integrity and preventing the spread of flames and smoke
H0 – Classification used to indicate that a cable or pipe seal will provide 120 minutes of stability and integrity against a hydrocarbon fire, but no insulation
H60 – Classification used to indicate that a cable or pipe seal will provide integrity and stability for 120 minutes and provide insulation for 60 minutes, in the event of a hydrocarbon fire
H120 – Classification used to indicate that a cable or pipe seal can resist a hydrocarbon fire for up to 120 minutes
Pipe Penetration Sealing System Benefits
CSD NOFIRNO
- Simplified design achieved through the standardisation of all bulkhead penetrations, significantly reducing the number of sealing components
- Design modifications can be implemented without requiring additional hotwork in hazardous area locations where flammable gas is a potentially explosive atmosphere risk
- Reduced space requirements for more efficient sealing system design
- Faster cable or pipe sealing installation process, saving time and labour costs
- Allows for pipework misalignment due to build tolerances, improving flexibility
- Substantial reduction in the number of pipe spools needed using CSD NOFIRNO
- Reduced vibration stress and cathodic corrosion, extending the lifespan of pipe systems and lowering failure rates
- Simplified pipe sealing system replacement, improving maintenance efficiency
- Lower vibration and noise levels, reducing the system’s overall noise signature
- Significant weight savings compared to traditional bulkhead fittings, leading to enhanced energy efficiency and advanced seal performance
Enhanced Survivability
- Certified for use in A60 boundaries (minimum length of 180mm), tested and approved for A0 applications without insulation (minimum length of 250mm)
- Proven watertight performance even after passing the A60 fire test
- Successfully passed a 2-hour hydrocarbon fire test, both with and without insulation, with ratings of H0 and H120
- Endured a 2-hour jet fire test without the need for additional insulation
- Shock tested to 850g in accordance with DEF STAN 08-120, followed by a post-test pressure test at 6.9 bar
- Blast resistant pipe penetration sealing systems for offshore locations
- Compliant with low smoke and toxicity standards (DEF STAN 02-711 and DEF STAN 02-713)
Flexible Pipe Penetration Sealing System
For A0 – A60, H0 – H120, Jet fire, Blast, Watertight & Gastight Ratings
The CSD NOFIRNO Flexible Pipe Sealing System is one of the most adaptive systems for sealing straight and angled pipe penetrations and can even accommodate multiple pipe runs. This system is specifically designed to uphold the safety of vessels by providing fire protection and ensuring that bulkheads and decks remain gas and watertight when pipes pass through them.
It comprises just two components: the NOFIRNO sealant, a silicone-based fire-resistant and water-repellent material, and NOFIRNO multi-filler sleeves, which come in bonded strips for easy installation.
CSD NOFIRNO Pipe Penetration System – Installation InstructionsDownload
