The outer surface of the metal seal ring can be coated with nickel, chromium, gold, silver, and polytetrafluoroethylene to accommodate different operating conditions and achieve higher sealing effect.

Metal ring seals are suitable for applications without relative motion or with little relative motion, which is also called static sealing.

The Metal Ring Seals can be made into circular, elliptical, rectangular, and other geometric shapes according to specific usage requirements.
 

The sealing mechanism of the metal seal ring is similar to the gasket. It also has the resilience generated by the deformation of the Metal Seal. The sealing contact surface of the ring produces contact stress. The contact stress causes the yield deformation of the ring surface to supplement the unevenness of the sealing surface to achieve the sealing requirements.

The metal sealing hollow ring is a hollow tube, and the sealing contact surface is very small (compared with the sealing gasket), so the required sealing pre-tightening force is much smaller than the sealing gasket.

When in use, the metal seal ring should be installed in the matching installation groove, and the depth of the installation groove is slightly smaller than the cross-section or axial section of the seal ring to ensure that the seal ring has the required deformation for sealing after pre-tensioning.

When the pressure of the sealed medium is higher than the atmospheric pressure, It should be positioned on the outer circle of the ring, and the outer circle of the ring should match the outer circle of the corresponding groove. When the pressure of the sealed medium is lower than atmospheric pressure (vacuum), it should be positioned on the inner circle of the ring, and the inner circle of the ring should match the inner circle of the corresponding groove.

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