ASCO is the worldwide leader in the design and manufacture of quality solenoid valves. We manufactures products that are designed to control the flow of air, gas, water, oil, steam - practically every kind of liquid or gaseous substance. Our heritage of innovation has resulted in an extensive line of ASCO products that range from two position on/off valves to entire flow control solutions designed to provide thousands of customer-specific solutions. Whether you need a minor modification of a core product or a complete flow control solution, we can help. ?br> Micro-miniature solenoid valves, sensors, pneumatic controls and position indication technology with network communications capabilities have been recent additions to the ASCO line of products.