| Unique "C" shaped gasket forms a triple seal  | Seals between the pipe ends and the groove  | Surrounded, reinforced and slightly compressed by the housing  | Seal is enhanced by pressure of vacuum in the line  |
| The sealing efficiency of Victaulic gaskets is such that the gasket forms an initial seal as it is stretched over thepipe ends. Upon placement of the housing around the gasket and into the grooves, the gasket is positioned. As the housing segments are tightened, the resilient elastomeric gasket confomns to the internal cavity of the housing and is further compressed, enhancing the gasket's seal against the pipe. The Victaulic gasket is pressure responsive. | The combination of these
characteristics creates a
permanent, leak-tight triple
seal on a variety of piping
materials including carbon
steel, stainless steel, aluminum,
PVC, cast iron and copper. Line pressure serves to strengthen the seal through the combination of normal gasket resilience, housing reinforcement and the action of pressure downward on the lips. | The Victaulic gasket design
seals equally well under
vacuum. Vacuum creates a
pressure differential between
the inside and outside of the
piping system. The resulting
increased force from external
pressure differential has
thesame seal strengthening
effect as internal pressure. Due to the forces applied at the center of the gasket under vacuum service greater than 10" (250 mm) of mercury, the use of molded FlushSeal gaskets or standard gaskets with metal liners is recommended. | FlushSeal gaskets comprised of
standard gaskets with rubber
filler strip inserts are not
recommended for vacuum
services greater than 10" (250
mm)of mercury. For more details about Victaulic gasket construction and testing, request 05.01. |