Fluid, especially water, meter has seal of polymerizable plastic between metering chamber aperture and connecting pipe

摘要

The meter, comprising housing (2) with base (2B) with connecting pipes (3,4) and measuring chamber (1) with aperture (5) sealed to connecting pipe, has seal (6) designed to be compressed between surface of chamber and inner surface of housing and made in the form of a bead of a polymerizable plastic applied to surface. The seal is applied, for example, in a groove between two ribs (9A, 9B) on the measuring chamber surface before the chamber is fitted into the base and is polymerized after fitting. In a variant of the process, the seal can be injected between the surfaces after fitting the measuring chamber.