... ABS plasticFloat ball: PEPlug : NRWorking Water Pressure: 0.01- 1.2 MPAWorking Temp: 0°C ... to +70 °C DN15WK can achieve accurate installation in water tank with high and low water ... level, water towers, cooling towers, ice machines, humidifiers, water ... , corrosion-resistant. non-polluting,quicker water flow rate characteristics and very low ...