差别的压力流动开关和可调整

The WFS18 series is a kind of differential pressure flow switch with two adjustable set points. In order to meet various requirements of customers, ACOL company developed the adjustable double set points differential pressure flow switch for upper-lower limit control of differential pressure. When the water flow (differential pressure) in system rises up or falls down to one set value, it will output a warning or sent switch-off signal to automatic control system. And if choose the local indicator, it could be applied to control the water cooled evaporator and condenser in HVAC system, the more or less flow of other heat exchanger, and low flow of heat exchanger due to scaling or dirty jamming, which has incomparable advantages than target flow switch. Metering substances: Water oil Please indicate your metering substances with your order. Technical parameters: Storage temperature: -29°C 82°C Media temperature range: -20°C 93°C Average pressure loss: 0.01bar Output : one SPDT dry contact output, terminal connection Switch: 5A(max),250VAC /DC Protection class: IP54 (differential pressure flow switch), IP65 (plate) Optional nominal size: DN50 DN30