GMG Catalog

Series 600 Metal-Clad GasketsGasket StylesStyle 600—Corrugated Solid MetalA plain, all-metal corrugatedgasket for use in lowpressure applications thatrequire a thin line contact because of space or weightlimitations. Corrugated gaskets are a versatile sealingelement where the available bolt loads are low. Dependingon the materials and construction, these gasketscan be very resilient.Style 606—Solid Metal with FlexibleGraphite CoveringThis gasket is identicalto the plain solid metalgasket (Style 640), coveredwith a layer of flexiblegraphite. This covering layer will fill flange face imperfectionssometimes found in flanges that have notbeen properly maintained.Style 620—Single-JacketedGenerally used wherethe radial dimensions of theequipment sealing surfacesonly allow space for a narrowwidth seal. Single-jacketed gaskets are constructedby encasing the soft filler material on one face andboth edges.Style 624—Single-Jacketed OverlapConstruction of this gasketoffers more filler protectionthan the standard singlejacketeddesign (Style 620).It is especially useful for applications where the radialdimensions do not allow space for a double-jacketedgasket.Style 626—Double-Jacketed CorrugatedGarlock Style 626 employsa corrugated jacket toincrease resilience. Suitedfor circular and non-circularapplications in widths of 3/8" and wider, it is an improvementover the standard double-jacketed Style 623gasket. If slight leakage should occur across the primaryseal at the inner edge of the gasket, the concentriccorrugations act as labyrinth seals.Style 627—Double ShellThe double shell on thisgasket allows greater hoopstrength and rigidity with theaddition of a completelyoverlapping inner seal. This gasket will withstand highercompressive loads common in high pressure applications.Style 623—Double-JacketedThe double-jacketedgasket has good compressibilityand resilience and isthe most popular clad gasketmanufactured.42