Structure voltage: closed, piloting Work voltage:AC220V±15% 50/60Hz AC110V±15% 50/60Hz Proper fluid: public water of 1-60°C Operating Pressure:0.2-1.0bar(0.02-10Mpa) Range of water pressure:2.0MPa ,10min normal Water flow:8 L/min ±15% In addition: Designs will adhere to customers’ special demands.