本发明涉及一种压力补偿阀,包括阀体和安装在阀体上的阀套。阀套具有第一内孔,第一内孔内设置有活塞和弹簧。弹簧内置于活塞与阀套之间形成的压力容腔内与活塞的一横截面作用。活塞轴向开有通孔,通孔内中部设有呈锥面的收口。通孔内设置有可堵住收口的钢球,钢球连接阻断和建立起进油容腔和LS流道。活塞径向还开有第一径向孔,第一径向孔一端与通孔连通。阀体具有第二内孔,活塞的一端 The present invention relates to a pressure compensating valve comprising a valve body and a valve sleeve mounted on the valve body. The valve sleeve has a first inner hole, and a piston and a spring are disposed in the first inner hole. The spring is built into the pressure chamber formed between the piston and the valve sleeve and functions as a cross-section of the piston. The piston has a through hole axially opened in the middle of the through hole with a conical surface. A through hole is provided with a ball that closes the bite and the ball connection blocks and establishes the intake chamber and the LS runner. The radial piston also has a first radial hole, one end of the first radial hole communicating with the through hole. The valve body has a second bore, one end of the piston