The sealing design of metal C - rings relies on the elastic deformation of a metal “C” base. During the compression process, this base creates a contact point on each sealing surface. The properties of the base decide the compressive load of the seal. When this load is combined with an exact compression rate, it generates a particular pressure that is directly linked to the achieved sealing level. A certain amount of this particular pressure is essential for the seal to fill in the flaws of the flange. When in use, the system pressure adds to this load. There is an option of a softer surface treatment. This treatment can enhance the plasticity of the seal and lower the particular pressure needed to reach the desired sealing level.
Types
Metal C-Ring for Internal Pressure (MCI): a resilient internally pressurized static face seal open on the inside, enabling it to bear the same pressure as its internal operational conditions. Ideal for assemblies, pressure vessels, jet engines, fuel injectors, lighter flanges, etc.
Metal C-Ring for Axial Pressure (MCA): a sturdy dynamic axial seal designed to endure the same pressure as its axial operational conditions. It’s an optimal choice for static and low-cycle dynamic axial sealing applications. It is suitable for use in various industrial settings, including hydraulic systems and high-temperature shaft sealing.
Metal C-Ring, spring energized for External Pressure (MCE-F): shaped like MCO, but this ring can withstand higher loads, making it ideal for use with rougher mating surfaces. It’s primarily designed for externally pressurized joints and flanges with a rougher surface finish. Additionally, it can be used for internally pressurized joints to prevent the working fluid from entering the seal cavity, although this comes with a reduced working pressure rating.spring energized metal c-ring for axial pressure
Metal C-Ring,spring energized for Axial Seals (MCA-F): the axial seal is specifically designed to seal against an I.D. and O.D. of the cavity.Axial Seals are ideally suited to accommodate limited rotational or linear movements such as those found in liquid or gas valves. Since Axial Seals are metallic, they are ideal for use in cryogenics, superheated steam or high pressure viscous liquids.
Pressure energized
Cross-section and wall thickness designed to control loading
Available for internal, external and axial pressure
Range of materials (Alloy X750, 718, Waspaloy and other exotic metals)
Platings and coatings: silver, gold, PTFE (others available)
Temperature range: from -273°C to 730°C (-460°F to 1350°F)
Pressure range: from medium vacuum to 2,000 bar (29,008 PSI)
Leak range: Approximately ≤ 25 cc/min @ 50 psig Nitrogen per inch of diameter to ≤ 1 x 10-4 std.cc/sec Air. The actual leak rate will depend on seal load, surface finish, and surface treatment.
Optional Features
Tribological wear-resistant coatings available
Custom shapes and sizes available
Oil & gas: downhole drilling/MWD
Industrial turbines: fuel systems/nozzles
Valves: body/bonnet, back seat sealing
Aerospace/space: turbopump, fuel systems, nozzles/injectors, cryogenics
Automotive: turbochargers, exhaust
