Do the PTG valves and the thin control lines clog easily?
No! Whoever says the opposite, either doesn’t know our systems or tries to damage us. Fact is that sieves in the working line and in the check valves as well as on the connecting air supply avert the intrusion of dust and dirt. We have employed these sieves with success for many years now. A further advantage of the sieves is that they form a natural crystallisation point, which prevents the valves from freezing.
