Rotary dumper valve is a high-performance combination valve that is widely used by the rotary mechanism of 20-100 ton hydraulic crane trucks in China. Its quality has been strictly tested by China National Construction Machinery Quality Supervision Testing Center according to JB/T4030.1-1985 and met the reliable requirement GZJRZ No. 020. The size of installation interface fits that of an inlet valve, so it can replace an inlet valve.

Basic parameters:
1. Rated flow QH=40～100L/min;
2. Rated working pressure PH=25MPa;
3. Rated pressure of adjustable back pressure valve Pb=1.0～2.0MPa;
4. Rated working voltage of solenoid valve: 24V DC;
5. Hydraulic control pressure: Px=0.6～2.2MPa (or mechanical operation mode).