Document Centre Send Us Your Enquiry About Us Industries & Applications Products & Services Contact Us O-rings Back-up and FEP rings Back-up rings are installed to prevent the extrusion of an elastomeric O-ring in its housing groove under certain operating conditions. FEP-encapsulated O-rings should be used whenever the chemical resistance of an elastomer is inadequate for long-term sealing. Back-up rings Manufactured from Fluolion® For use when system pressure exceeds 10MPa For use when low strength O-rings are installed For use when adverse mechanical conditions prevail More Info FEP encapsulated O-rings When chemical resistance of elastomer is inadequate Seamless FEP sheath completely covers elastomeric core Elastomeric core of fluorocarbon or silicone Can be used with food and pharmaceuticals More Info Document Centre For industry or application News Desk Case studies, images and news Current Vacancies Global career opportunities Sign up for products and services news Back to top ABOUT US Home About James Walker Our History Procurement News Desk Career Opportunities Customer Satisfaction Contact Us INDUSTRIES & APPLICATIONS Chemical and Petrochemical Construction Defence and Aerospace Engineering and Manufacturing Food and Beverages Marine Propulsion Marine Transportation Metallurgical Mineral Oil and Gas Paper, Pulp and Board Pharmaceutical and Bioprocessing Power Semiconductor and Electronics Valves Water and Waste PRODUCTS & SERVICES Cartridge Seal Systems Compression Packing Critical Metallic Sealing Elastomer Technology Engineering Plastics Environmental Excellence Expansion Joints and Bellows Flange Management and Joint Integrity Flooring and Decking Products Gaskets and Sheet Jointings Hydraulic Sealing Products Mechanical Seals O-rings Ring Type Joints Rotary Seals Seals in PTFE and Engineered Thermoplastics Static Seals Tension Control Bolting Valves Vibration Attenuation Products DOCUMENTS & PAPERS Case Studies Technical Papers and Presentations Document Centre FOLLOW US James Walker on Twitter James Walker on LinkedIn James Walker on YouTube James Walker on Instagram Sign up for products and services news © All contents copyright of James Walker. Part of the James Walker Group. an embado solution CONTACT US | TERMS OF USE | LOGIN