The Elster Kent low-revving piston pro-vides a long working life, substantially reduced meter stoppages and enhanced dura-bility and performance, as a result of the design of the
grooved piston within the meter measuring chamber. The action of the grooved piston, with the stationary chamber wall, creates flow eddies that hold solids in suspen-sion until flushed out, thus
reducing meter stoppages