The new MICO hydraulic-over-air relay valves are said to be rugged and able to cope with a wide array of operating values
The relay valves are ideal for various applications, such as controlling an air-braked trailer with a hydraulically braked towing vehicle that has an air power source. The system originates with a hydraulic vehicle component, such as a master cylinder or hydraulic control valve, which delivers a given hydraulic input pressure. This input pressure sends a pilot signal to the relay valve in order to modulate air brake pressure on the other end. MICO offers three different hydraulicover- air relay valve designs: single, dual and tandem. The single input design provides one hydraulic pilot port to control modulated air braking pressure.
