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NJV
Flow rate indicators allow a quantitative
visualisation of delivery, especially for uses with
high work pressures, and, where it is necessary, controlling
nontransparent fluids and/or with high viscosity. A
magnetic piston is pushed by the circulating fluid against
an antagonistic spring, moving therefore a magnetically
coupled indicator outside the flow chamber. Such indicator
runs within a graduated scale allowing to quantify the
delivery volume. The instruments are provided with a
viscosity compensation system up to 200 cst. They can
also be optionally provided with an electrical alarm
contact that may be set within the measurement range.
Moreover, a front pilot light indicates the status of
the electrical contact. NJV with electrical contact
NJW400
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