Metal W-Ring Internal Pressure Common Metallic Material Options ■Alloy 718 Common Plating Options • Silver Note: All dimensions are in mm. Performance data is based on Alloy718 in the heat treated condition. Actual performance should be accordingly considered due to various working conditions. Multi-convolution W-rings available for very high spring back requirement. Groove and Seal Design Seal: DSO = DG -DC - (Plating thickness) X 2 Groove: DG = DSO + DC + (Plating thickness) X 2 Groove finish is a critical factor for metal seal. Depend on different medium, Sonkit recommends the following groove surface roughnesses Typical Applications • Gas & steam turbines • V-Band Coupling • Very low load flanges or joints with considerable movements

Sonkit Industry Common Metallic Material Options ■Alloy 718 Common Plating Options • Silver Note: All dimensions are in mm. Performance data is based on Alloy718 in the heat treated condition. Actual performance should be accordingly considered due to various working conditions. Multi-convolution W-rings available for very high spring back requirement. Groove and Seal Design Seal: DSI = DG + DC + (Plating thickness X 2) Groove: DG = DSI - DC - (Plating thickness X 2) Groove finish is a critical factor for metal seal. Depend on different medium, Sonkit recommends the following groove surface roughnesses...