1. foot valve for rock/concrete breaker; 2. direct mount, easy, reliable; 3 ... visit!HRS-03 2 way 3 position foot control valve, it is used for convert a excavator into a rock/concrete breaker ... port in, A port out, T port return line;position 1, P port to T port, direct to return line, ... P port to A port, breaker valve starts to work;easy assembly;working pressure: 1). pilot system pressure 10MPa; 2). ...