Shuangda Hydraulic Machinery is one of the professional throttle check modular valve manufacturers and suppliers in China, welcome to buy cheap and low price throttle check modular valve made in China from our factory.Usage and characteristicZ2FS throttle and check modular valve is a modular dual throttle and check modular valve. It can control the flow by changing the flow of the section of the throttle part. When the oil flows inversely, the oil can flow freely through the check valve. Inlet throttle or outlet throttle can be changed by changing the mounting position (flip 180° of the valve while mounting the valve).