◇ Overview ZBTH self-holding solenoid valve is designed for water, thermal power unit cooling water system designed to support large-diameter valve. But also for other industrial uses. ◇ Features 1) solenoid valve with memory function, self-holding in the form of double-coil structure, instant power that remains active. 2) The main use of the differential pressure to open the valve structure, stable and reliable operation of the pilot valve balanced system design self-cleaning filter that can be guaranteed to work in cloudy conditions under flood water medium; its components have sealing cover and access socket, coil epoxy solid seal and other moisture-proof measures. 3) The valve also has electrical automatic control and manual operation with manual control of the main valve, easy to operate, fully functional. ? ◇ main technical parameters Nominal diameter: 50mm, 80mm, 100mm, 150mm, 200mm, 250mm, 300mm nominal:? 0.8MPa Working pressure:? 0.1 ~ 0.8MPa Working medium:? Water, air, oil, low viscosity liquid ?? Operating voltage: DC110,220V, AC220V medium temperature: 0 ~ 100 ℃; Humidity:??? -10 ~ 50 ℃ powered mode: dual-coil, the instantaneous power-energization time: not less than 0.1 seconds Insulation grade: B grade ? life: no less than 30,000 times since the holding solenoid valve size models Dg D1 D2 HL nd ZBTH-50 50 125 165 365 220 4-Φ18 ZBTH-80 80 160 200 400 270 8-Φ18 ZBTH-100 100 180 220 445 350 8 -Φ18 ZBTH-150 150 240 285 558 400 8-Φ22 ZBTH-200 200 295 340 565 600 8-Φ22 ZBTH-250 250 350 395 575 750 12-Φ22 ZBTH-300 300 400 440 625 850 12-Φ23 ◇ Model Description ZBTH - □ - □ / □ Power supply (V) Working Pressure (MPa) Nominal went holding solenoid valve