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Metal Ring Seals

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About Metal Ring Seals

Metal ring seals are static devices that can withstand high temperatures, pressures, and vacuums. They can also withstand cryogenic conditions and high face-to-face cycling. There are three basic types of metal ring seals: plain, self-energized, and pressure-filled. With spring-energized seals, compression deforms a plastic jacket that is more ductile than the flange materials. Flanges have a sealing face and an elastic core that includes a tightly wound helical spring whose coils have a specific compression resistance. During compression, the pressure forces the jacket to yield, fills the flange’s imperfections, and ensures positive contact with the flange’s sealing faces. Each coil in the helical spring acts independently.

Metal ring seals are available in a variety of shapes, sizes, and materials. Some are rounded, rectangular, or square. Others are oblong or oval. Metal ring seals vary by outer diameter and length, and are made from aluminum, copper, silver, nickel, steel, or stainless steel. Some metal ring seals are plated or coated with cadmium, copper, nickel, silver, gold, or indium. Others are heat-treated, age-hardened, or annealed. In terms of performance, metal ring seals have an operating temperature range, a pressure range, and a vacuum range. For example, metal ring seals that are designed for cryogenic conditions can withstand a range of low temperatures.  

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Engineering Web: Metal Ring Seals

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Metal Ring Seals, Metal Ring Seals Suppliers, Metal Ring Seals...
Ningbo Industry Seals Factory Manufacturer and bulk supplier of mechanical seals, cartridge type mechanical seals, metal bellow seals, edge
Aerospace - SAE Standards
Gland Design, O-Ring and Other Elastomeric Seals Gasket - Metal O-Ring, .035 Tube X .006 Wall, Cres
See SAE International Information
Groove Design - Metal Face Seal
For metal o-ring groove designs where interchangeability is not a requirement refer to ARP674.
See SAE International Information
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