这是一款推土机液压转向控制阀总成，是推土机转向液压系统的核心控制元件，采用机械 – 液压联动结构，集成了操纵杆、阀体、阀芯及液压接口，材质为高强度铸铁，具备高耐压、耐磨损的特性，专为工程机械恶劣工况设计。
主要用于履带式推土机的转向控制，安装在推土机的液压操纵系统中，接收驾驶员的转向操作指令，通过控制液压油的流向与压力，驱动转向离合器与制动器，实现推土机的左转、右转、原地转向及直线行驶控制。
该型号控制阀主要适配山推 SD16 系列推土机（含 SD16、SD16L、TY160 等型号），同时兼容小松 D60/D65 等同吨位履带式推土机，是工程机械设备中应用广泛的转向控制配件。
This is a bulldozer hydraulic steering control valve assembly, the core control component of a bulldozer’s steering hydraulic system. It adopts a mechanical-hydraulic linkage structure, integrating the operating lever, valve body, spool, and hydraulic ports. Made of high-strength cast iron, it features high pressure resistance and wear resistance, specifically designed for the harsh working conditions of construction machinery.
It is mainly used for the steering control of tracked bulldozers. Installed in the bulldozer’s hydraulic control system, it receives steering commands from the operator and controls the flow direction and pressure of hydraulic oil to drive the steering clutches and brakes, enabling left/right turns, pivot turns, and straight-line travel control of the bulldozer.
This type of control valve is primarily compatible with Shantui SD16 series bulldozers (including SD16, SD16L, TY160, etc.) and also compatible with equivalent-tonnage tracked bulldozers such as Komatsu D60/D65. It is a widely used steering control component in construction machinery equipment.
