Variable area flow meter type 335 with magnet PVC-U PN16

  Data sheet.pdf

Variable area flow meter Type 335 from Georg Fischer is a precision mechanical inline measurement device engineered for continuous liquid and gas flow monitoring in industrial thermoplastic piping networks. Featuring an integrated magnetic float, Type 335 enables automated process monitoring and electronic threshold signalling via optional clip-on limit contacts or continuous position sensors. Manufactured from high-grade unplasticised polyvinyl chloride (PVC-U), this flowmeter exhibits robust chemical resistance against acids, alkalis, inorganic salts, and aggressive chemical solutions typically encountered in water treatment plants, chemical dosing skids, aquaculture systems, and industrial distribution lines.

Operating at a nominal pressure rating of PN16 (16 bar at 20 degrees C), the meter guarantees reliable operational performance across a working temperature range spanning from 0 degrees C up to +60 degrees C. Flow rate measurement is determined by the hydrodynamic balance of the float within the calibrated, internally tapered transparent metering tube, offering direct visual readout against clear scales. Sized for solvent cement socket jointing in line with standard metric pipe diameters from d32 up to d75 mm, Type 335 integrates union connections with chemical-resistant elastomeric seals, ensuring rapid radial installation, dismantling, and maintenance without disturbing adjoining pipeline sections.

The stabilised PVC-U compound complies with ISO/TR 10358 chemical resistance standards and provides outstanding UV and environmental stability without plasticiser leaching. The magnetic float operates smoothly even under fluctuating flow velocities, ensuring linear response across a wide measuring range spanning from 50 l/h up to 60000 l/h depending on the selected diameter variant. Engineered for vertical upward flow installation, Georg Fischer Type 335 delivers maintenance-free volumetric measurement with low pressure loss, high operational safety, and full compatibility with automated industrial process control loops.