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Elesa have announced that their high-quality visual flow indicators may now be specified as flow measurement devices with the addition of an external PLC compatible sensor and impellor mounted activating clips. This quickly adapts these units from passive indicators of flow – as protection against blockages for example – into active measurement equipment as part of the adjusting and updating of hydraulic system performance.

The new metering indicators are available in ¾ in and 1in sizes to suit many applications in fluid systems throughout industry where cooling or liquid transfer systems are employed. This will include process or manufacturing plant, e.g., for water, oil, petrochemical and hygienic area systems.

The new visual flow indicator sensor can be mounted in any external position correctly aligned with the indicator tube. The indicator can then operate in two-way liquid flows with a viscosity lower than 30cSt.

These Axial flow devices sit in the moving fluid causing the rotor to spin, which generates a pulsed signal proportional to the speed of the rotor, and so through calibration, gives the flow rate. It is important to allow the propeller adequate rotation with a minimum flow rate being required depending on the type of fluid and its viscosity. Above the minimum flow rate, the rotor starts to rotate with a speed proportional to the fluid flow, while the inductive sensor, completely separated from the liquid passage area, reads the movement of the two metal clips mounted on the rotor. This provides a frequency variation that can be transformed into a reading of the flow rate by connection to a PLC.

Elesa visual flow metering indicators feature a shaft and rotor propellor in red (optionally blue) Polypropylene based (PP) technopolymer, fitted with AISI 304 stainless steel sensor activating clips. The tubular housing in clear Borosilicate glass has high operational resistance and is also suitable for use with glycol-based solutions.

ELESA presents a wide range of useful accessories for increasingly sophisticated hydraulic systems which require reliable and high-performance components.

Further information regarding Elesa products may be found here.

Elesa (UK) Ltd is a branch office of the Elesa Spa group, international manufacturer of plastic and metal standard machine parts for the mechanical engineering industry for over 75 years. Elesa products express a quality of design and ergonomic research with recognition of its brands as guarantees of quality and reliability. Continuous attention to clients’ needs and a rapid service have made Elesa a reference point for designers and builders. More than 45,000 product codes, 180 patents and 42 international design awards produced with systems certified to ISO 9001 and ISO1401 are supported by localised stock and technical support.

 Elesa Standards cover industrial components including, handwheels, handles, levers, knobs, gears, spring and indexing plungers, levelling feet, locks and latches and hydraulic tank accessories in engineering grade plastics, aluminium, steel and stainless steel. Also a range of light to heavy duty industrial castors, vibration damping elements, conveyor components, rod ends, fork joints and magnets.

Industrial machinery and equipment are well served with the Elesa anti-vibration mounts, ball lock pins, ball transfer units, filler breathers, grip knobs, latch clamps and metal hinges, in addition to oil level indicators, plastic hinges, pneumatic clamps, stainless steel hinges, toggle clamps, tubular handles and wing knobs.

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