NORSOK Approved Compounds

NORSOK Approved compounds certified to Industry standards

NORSOK standards are internationally recognised testing methodologies developed by the Norwegian Petroleum industry. The M-710 standard defines requirements for critical polymeric seals, seats, and back-up materials for permanent subsea use. The standard also applies to topside valves in critical gas systems.

Eastern Seals (UK) Ltd supply wide range of NORSOK approved materials. They are suitable for a variety of critical services and applications, enabling our customers to select the appropriate compounds to suit their specific needs. Our products have been qualified against the strict NORSOK M-710 rapid gas decompression (RGD) and the effects of sour gas (H2S) aging on polymer materials.

Eastern Seals provide a range of formulations within the HNBR, Viton B, Viton GLT and FFKM materials that have passed the M-710 requirements. These are listed in the table below.

Please contact us to order NORSOK-approved O-Rings, or to find out more information. You can also download our Approved compounds Information Sheet:

NORSOK Approved Compounds

ES REF	Description	Colour	Temp Range	Shore	Notes	Datasheet
V90 AED GLT	Viton 90 Anti-Explosive Decompression, GLT Type	BLACK	-30°C to +250°C (Static) -40°C to +220°C (Dynamic)	90	NORSOK M-710 Approved	V90 AED GLT
V90 AED Type B	Viton 90 Anti-Explosive Decompression, B Type	BLACK	-30°C to +250°C (Static) -15°C to +220°C (Dynamic)	90	NORSOK M-710 Approved. Provides low and stable compression set at high temperature.	V90 AED Type B
HNBR90 AED	Hydrogenated Nitrile 90 Anti Explosive Decompression	BLACK	-30°C to 150°C	90	NORSOK M-710 Approved	HNBR90 AED
FKM90 LT50 AED	FKM 90 Anti-Explosive Decompression, Low Temperature grade	BLACK	-50°C to +225°C (+250°C for short periods)	90	Norsok M-710 Approved (Rev.2 October 2001).	FKM90 LT50 AED
FFKM8717	Perluoroelastomer 90 Anti-Explosive Decompression	BLACK	-10°C to + 230°C continuous (260°C Peak)	90	NACE TM0187 Tested – Sour Fluid test	FFKM 8717
FFKM8732	Perluoroelastomer 90 Anti-Explosive Decompression, Low Temperature	BLACK	-45°C to + 250°C continuous	90	High chemical resistance and low temperature capability. Developed for the Oil & gas Industry. Explosive decompression resistant, tested to Norsok M-710.	FFKM 8732
HNBR90 AED LT	Hydrogenated Nitrile 90 Anti Explosive Decompression, Low Temperature	BLACK	-55°C to 160°C	90	This peroxide cured compound has 19% ACN content, with carbon black reinforcement. It provides low temperature capability and rapid gas decompression (RGD) resistance. NACE TM0187 Tested – Sour Fluid test	HNBR90 LT AED