Seals, Gaskets & O-Rings Suppliers UK
Seals and gaskets prevent the leakage of fluids and gases in machinery, pipework, process equipment, and vehicles. From a simple O-ring on a hydraulic fitting to a complex rotary shaft seal on a turbine, sealing technology is critical to the reliable operation of industrial equipment. UK sealing suppliers combine extensive stock programmes of standard seals with custom design and manufacturing capability for non-standard applications.
This category lists UK suppliers, distributors, and manufacturers of seals, gaskets, O-rings, and sealing systems for industrial applications.
Product Range
O-rings are the most widely used seal type, available in thousands of standard sizes and dozens of elastomer compounds from stock. Hydraulic seals include piston seals, rod seals, wiper seals, guide rings, and buffer seals for hydraulic cylinder applications. Pneumatic seals serve similar functions in air cylinders and valves. Rotary shaft seals (oil seals) prevent lubricant leakage from bearings, gearboxes, and rotating machinery. Mechanical seals provide reliable sealing for pump shafts in process industries. Gaskets — including compressed fibre, spiral wound, ring joint, rubber, PTFE, and graphite types — seal flanged pipe joints, pressure vessel connections, and equipment access covers.
Materials and Selection
Seal material selection is critical and depends on the fluid being sealed, operating temperature range, pressure, and shaft speed (for dynamic seals). NBR (nitrile) is the general-purpose hydraulic seal material. FKM (Viton) handles higher temperatures and more aggressive chemicals. EPDM is preferred for steam, hot water, and brake fluid applications. PTFE provides the widest chemical compatibility and lowest friction. Silicone serves food-contact and high-temperature applications. FFKM (Kalrez) provides the ultimate chemical resistance for extreme process conditions. Experienced UK seal suppliers provide application engineering support to ensure correct material and design selection.
Custom Solutions
When standard seals do not meet application requirements, UK seal manufacturers offer custom design and manufacture. CNC-machined PTFE and polyurethane seals, custom-moulded elastomer seals, die-cut gaskets from sheet materials, and waterjet-cut gaskets from drawing files provide solutions for non-standard applications.
Find UK seal and gasket suppliers in this directory by product type, material, application, and supply capability.