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WR
and WO Flow indicators allow both visual
and quantitative control of liquids in hydraulic systems.
WO type is made up of a simple transparent pipe and
is particularly suitable for dirty or opaque fluids.
WR type also includes a coloured rotor whose spinning
speed may provide an approximate indication of the delivery
of the examined fluid. Both types are provided with
a natural glass pipe, which may be rotated on the axis
of the instrument thanks to a patented retainer system,
and cleaned with two longitudinal brushes without being
removed from the equipment.
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