Z2FS type of dual / single way stacking throttle valves is used for controlling the main runoff of pioneering oil quantity at 1 - 2 oil passes, which is allowed to connect at the same time 2 oil pipes for a working oil cylinder. 2 symmetric single-way throttle valves control flux via reed to change the cross section of the internal flowing area, and at the other hand, upward to pass the one-way valve pass. Main runoff control is installed between direction and chassis. Control of pioneering runoff is installed between pioneering valve and main valve.



MK / MG type of throttle valves is directly installed in the pipeline, as it is the pipe type of one-way gate valve / throttle valve, which uses axial triangle groove structure to form throttle opening. There are 7 specifications and 2 kinds of connecting threads, which are used for controlling the implementing speed for element. 



MK type of one-way valves is mainly composed of adjustable sleeve, valve sleeve and one-way valve. When flows in the forward way (B-A), the throttle opening made up of adjustable sleeve and valve sleeve shall play the throttle function. When flows in the counter way (A-B), the one-way valve shall open for the function of a one-way valve. Turning the adjustable sleeve can vary the cross section of the formed throttle to realize flux adjustment. 



MG type of throttle valves is similar as MK in structure. It can realize dual-way throttling. MK / MG type of valves is mainly used to co-operate with overflow valve to form 3-middle-section timing circuit (entrance, exit and bypass), and extensively used in hydraulic systems without special requirements in load variation and stability in speed.