Inner check valve: The check valve inside the valve body is to insure the hydraulic oil not to be returned.

Inner relief valve: The relief valve inside the valve body is able to adjust the hydraulic system working pressure.

Oil way: Parallel circuit, power beyond option.

Control Way: Manual control, pneumatic control, hydraulic and electric control for optional.

Valve construction: monoblock construction, 1-7 levers.

Spool Function: O,Y, P,A.

Option: Hydraulic lock is available to be added on A and B port.

Available with manual, pneumatic control, electric and pneumatic control, hydraulic and electric control and etc.