... electrical control device. It is made up of valve body,valve seat,paddle,stem. Valve type: 2-way /3-way valveSize: 15mm,20mm ... . It is made up of valve body,valve seat,paddle,stem.Brass Valve/ Threaded Valve/ValveVB-3000 series Brass Valve is equipped with electrical control ... /heat water in central air-conditioning,heating,water handling and industrial processing industry system. Globe valve body