CVQ is a pilot valve - electronically operated constant pressure - functioning together with the EKC 361 electronic system or an EKC 366 controller. CVQ enables the electronic (and thus the remote) control of a ICS or PM pilot operated servo valve. The CVQ pilot valve is used to maintain a constant pressure at the ICS or PM pilot operated servo valve inlet side and can, via suction pressure regulation, very accurately control the temperature of a medium from an air or liquid cooler, etc.