P420 Series plastic, vortex-shedding flow rate transmitters

Plastic, vortex-shedding flow rate transmitters are available for cost-effectiveness in processing water, brine, and corrosive fluids in water treatment, chemical, and desalination applications. The P420 Series of plastic flowmeters meets requirements for an inexpensive flow rate transmitter without moving parts that can stick, bind, or coat when processing water, brine, corrosive fluids and low-viscosity fluids to 4.5 Cp or 50 SUS. P420 Series flow rate transmitters include models with wetted parts entirely of PVC (polyvinyl chloride) or CPVC (chlorinated polyvinyl chloride) for greater heat resistance. They are electronic instruments designed to transmit low-viscosity liquids compatible with PVC/CPVC, including liquids that may contain particles. PVC and CPVC units come in six pipe diameters providing full-scale flow rates from 6 to 200 gallons per minute (2.27 to 750 liters per minute) with 10:1 turndown. The pipe sizes with their flow rates are 3/8 inch (6 GPM, 22.7 LPM), 1/2 inch ( 12 GPM, 45 LPM), 3/4 inch (25 GPM, 95 LPM), 1 inch (50 GPM, 190 LPM), 1-1/2 inches (100 GPM, 380 LPM), and 2 inches (200 GPM, 750 LPM). The P420 models with CPVC body, sensor and bluff can transmit hot water or other fluid with maximum operating temperature of 180°F, compared to maximum 140°F with PVC units. CPVC transmitters can accommodate higher maximum operating pressures than PVC units at temperatures of 80 to 180°F.