NCF5 NORSOK Compact Flange
The RCF NCF5 Series is a high-integrity metal-to-metal connector designed as a superior alternative to traditional ANSI/ASME flanges. Engineered strictly to NORSOK L-005 standards, it provides a permanent, leak-proof seal for critical high-pressure and high-temperature service.
This compact solution is specifically developed for upstream and downstream assets including risers, SPM systems, manifolds, X-trees, and subsea pipelines. Its robust design excel in process piping and heat exchanger applications where mechanical fatigue and thermal expansion are constant operational risks.
Features & Benefits
Space & Weight Saving
- Total mass reduction up to 80% compared to standard ANSI flanges.
- Decreases structural footprint and reduces load on process piping systems.
Safety & Sealing Performance
- Redundant leak safety provided by dual independent seal barriers.
- IX seal ring utilizes internal pressure to energize metal-to-metal bonding.
Wider Operating Envelope
- Engineered for high thermal expansion and extreme cyclic loading conditions.
- Maintains high-integrity sealing across a broad range of pressure and temperature.
Engineered Verification
- Fully certified to NORSOK L-005, ASME B16.5, and API 6A standards.
- DNV-ST-F101 compliant for subsea pipeline and process piping application.
Technical Specifications
Size & Pressure Range
1/2"–48"; Pressure classes from CL150 up to 10,000 psi (API 6A / ASME B16.5).
Design & Verification
NORSOK L-005, ASME B16.5, API 6A, DNV-ST-F101; FEA verified for cyclic loading and extreme thermal expansion.
Material Coatings
Standard Fusion Bonded Epoxy (FBE), Carboline, or customized industrial coatings for subsea and topside marine environments.
Options & Adapters
Double studded adapters, blind flanges, and customized material ratings available for specialized flow-control manifolds.
Applications
Subsea Pipelines
Reliable connectors for subsea pipeline systems ensuring total integrity under extreme hydrostatic pressure and cyclic fatigue.
SPM Systems
Optimized for Single Point Mooring (SPM) systems requiring compact, lightweight connections that handle cyclic mooring loads.
FPSO & Risers
Specifically designed for dynamic riser systems and FPSO topside process piping subject to high heave and thermal loads.
Manifolds & X-trees
Compact engineering for wellhead manifolds and subsea Xmas-trees where space is limited and reliability is non-negotiable.
Heat Exchangers
Critical high-temperature sealing for process heat exchangers, accommodating high thermal expansion without leakage.
Process Piping
Topside and onshore process piping requiring high-integrity metal-to-metal sealing for volatile fluid transmission.