Working Principle

The electronic counter acts on two simple solenoid valves fitted on the valve’s pilot circuit to determine the position of the valve obturator, hence its state.


According to the type of pilot circuit, a number of different valve types can be constructed starting from the same base valve, having different functions. The most common are:

Model 2SRL

Two-stage opening and closing, flow limiter limiting and non-return

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Multistep model

Opening and closing managed by the electronic counter which controls the flow rate value, non-return.

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We design solutions

For the measuring systems where there is no electronic counter, ISOIL offers a line of mechanical preset valves in sizes 2’’, 3’’ and 4’’ which are driven directly by the mechanical preset fitted on the counter through specific lever mechanisms.

Automatic Valves Isovalve
Da 2” a 10”
Fiscal Vales Isoseal
Da 2” a 8”
Preset MPV Valves
Preset V705 Valves

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