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Custom precision rubber seals, gaskets and mouldings

Norsok M-710 - Working to a World-Class Standard.

For our customers in the oil and gas industries, it's critically important to know they can rely on components that will function effectively in incredibly hostile environments. So to give them an unequivocal assurance of quality, performance and durability, we've long since worked to the NORSOK M-710 standard - the internationally recognised benchmark for all non-metallic seals and bearings.

In addition, although materials can be approved in five different grades, we're one of the few manufacturers to exclusively use the top two grades alone - not only guaranteeing the highest possible levels of quality but also providing a greatly reduced margin of error where performance criteria are concerned.

Originally developed by the Norwegian petroleum industry, the M-710 standard means that materials must achieve accepted criteria for both rapid gas decompression (RGD) - also known as explosive decompression (ED) - and sour gas ageing (H2S), both of which are proven indicators of long-term performance and viable life expectancy.

RGD testing establishes a material's resistance to blistering and cracking when sudden changes in pressure and temperature occur, with conformation to M-710 proving structural resilience and seal integrity in hostile sub-sea applications.

M-710 Test Results Example of the M-710 ratings standard. DP Seals will only use materials that meet the full requirements of just the top two grades. Click the image to enlarge.

Sour gas testing analyses potential degradation over extended periods of time, assessing criteria such as tensile strength, swelling, elongation and hardness to ensure constant, predictable performance far beyond the likely practical life of any particular component.

With our experience and expertise in this field, we've been able to develop and supply a wide range of seals and custom-moulded components, with our customers including some of the most successful oil and gas companies in the UK, Scandinavia and further afield.

If you are unsure about what material might be best, check out the article: "Mind the gap - a guide to custom rubber", for ideas, call us on +44 (1202) 674671 or email our .

Every customer receives the same high level of service from DP Seals: uncompromising quality control.

DP Seals AS 9100, ISO 9001, 14001 and 18001 quality certificates

Click on the image to download PDFs of our AS 9100 with ISO 9001, ISO 14001 and OHSAS 18001 Certificates, our Quality, Environmental and Health and Safety Policies document and RoSH compliance statement.

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