Feature: 1. Normally open: This is a 2-way, 2-wire normally open motorized ball valve, integrated manual and automatic function, with DN20 interface 2. IP54 protection: This ball valve protection level electric ball valve is IP54, has good dust and drop resistance, can be used for a long time with confidence 3. Simple installation: This 2-wire ball valve can be installed easily and quickly, the blue is connected to the wire energized and the yellow is connected to the neutral wire 4. Applicable medium: The applicable medium of this ball valve is cold water, hot water and 50% ethylene glycol solution, has wide compatibility 5 .Durable Material: The ball valve is made of brass and ABS, high strength and hardness, good wear resistance, not easy to damage, sturdy and durable Specification: Item Type: DN20 Ball Valve Material: Brass and ABS Power supply: AC220V Interface size: DN20 Power: 6-20W Motor torque: 6N.M Motor type: synchronous motor Action time: 6-15s Working pressure: 1.6Mpa Semi-closed pressure difference: