Seal for metering orifice

A device for dispensing a metered amount of fluid, comprising:

• an orifice seal member, said orifice seal member comprising a sealing surface and defining a metering orifice through which the metered amount of fluid flows, said sealing surface being generally planar;
• an orifice housing, said orifice housing defining a bore and comprising first and second surfaces, said bore being adapted to removably receive said orifice seal member and to sealably receive a fluid carrying conduit such that fluid from said conduit is communicated to the metering orifice, wherein the first and second surfaces have an axis in common with the sealing surface when the orifice seal member is received within the bore and are separated by a groove, said groove allowing said first surface to be axially compressed and radially deformed by said sealing surface and thereby sealably mount the orifice seal member to the orifice housing.

A device for dispensing a metered amount of fluid, comprising:

• an orifice seal member, said orifice seal member defining a metering orifice through which the metered amount of fluid flows;
• an orifice housing, said orifice housing defining a bore and being adapted to removably receive said orifice seal member and to communicate a fluid to the metering orifice, wherein first and second surfaces are provided by one of said orifice seal member and said orifice housing and a sealing surface is provided by the other of said orifice seal member and said orifice housing, said first and second surfaces having a common axis with the sealing surface and being separated by a groove, said groove allowing the first surface to be spaced and separate from the second surface, said sealing surface and said first surface being generally planar and engaging each other and one of said sealing and first surfaces being at least partially axially compressed and radially deformed to sealably mount the orifice seal member to the orifice housing.