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Oil & Gas

Our expertise in the design and manufacture of specialised wellhead sealing products stretches back over 40 years of working in partnership with the Oil & Gas Industry.

With our on-going research programmes, we continually create new sealing materials to work at ever-greater extremes of temperature and pressure, together with increased resistance to abrasion, aggressive oilfield chemicals and rapid gas decompression (RGD).

As a result, we supply well-proven seals and accessories to the highest specifications required by the industry on a global basis. These include:

● ‘O’ rings: precision moulded in high-performance elastomers; hydrogenated nitrile (HNBR), fluoroelastomers (FKM), nitrile (NBR), and Aflas® (FEPM) - including a number of RGD-resistant grades qualified to Norsok M-710.

● Springsele®: this extrusion-resistant S-type seal is a highly efficient double-acting product for arduous static duties with large extrusion clearances. Versions are supplied for internal or external housing grooves.

● FS Casing & Tubing Seal: moulded in exceptionally tough Elast-O-Lion® hydrogenated nitrile, with stainless steel anti-extrusion elements to seal effectively across large clearances with rough surfaces.

● P-Seal: energised by injection of plastic packing, this static seal for casing and tubing heads is supplied in high-performance elastomers with stainless steel mesh anti-extrusion elements.

● Casing & tubing hanger packers: our fully developed and rigorously tested designs provide efficient axial sealing against tubing or casing pipe.

● Tie-down & Lock-down Screw Packings: these are custom-designed in a range of materials to provide effective sealing for bolts that fasten and retain tubing and casing hangers.

● Metal End Cap seals: extrusion-resistant hybrid metal/elastomer seals for high-pressure casing and tubing applications.

● Moorside® API ring joints: metal ring seals in a full range of sections, diameters and materials. UK-manufactured to API and ASME standards by James Walker Moorflex under its API Spec 6A-0038 and API Spec 17D certifications.

● Metaflex® spiral wound gaskets: to ASME, BS and DIN standards, for high integrity sealing of pipe and pressure vessel flanges operating under arduous levels of temperature, flow rate or vibration.

● Compression packings: a wide range including products with TA-Luft certification, and specification approvals of major operators for fugitive emission control in valves, plus duties on pumps and tank lids.

● Valve seals & components: including Lionsele® LF spring-energised PTFE lip seals, RGD-resistant ‘O’ rings, thermoplastic seats and seat inserts in Devlon® V-API and other materials, plus metallic and semi-metallic gaskets.

● Specialised machined components: precision machining of exotic and standard alloys for customised thin wall components, and metallic seals of all designs.

● RotaBolt® tension control fasteners: bolts and studs with tension control indicators for fastening applications where a precise load must be maintained and a simple tension-checking method is required. 

● Test laboratory facilities: in-house capabilities include rapid gas decompression (RGD) testing; low temperature testing; and oilfield media compatibility analysis of elastomers.  

Click here to view a wellhead annimation.

Click here for a pdf copy of our Wellhead Sealing Guide.