Profile: Asco Scientific, Inc. manufactures quality solenoid valves. Our products are designed to control the flow of air, gas, water, oil, and steam. Our heritage of innovation results in an extensive line of products, that range from two positions on/off valves to entire flow control solutions designed to meet requirements of thousands of customers. Our solenoid is an electromagnetic part of a valve, comprised of a coil, core tube, core and enclosure. Our 3 way valves have three pipe connections and two orifices. When one orifice is open, the other is closed and vice versa. They are commonly used to alternately apply pressure to and exhaust pressure from a valve actuator or a single acting cylinder. These valves can be normally closed, normally open or universal.