High pressure valve spring for Pettibone 30 12000

The 4012513 high pressure valve spring serves as a critical component within the hydraulic and transmission systems of heavy machinery. Its primary function is to regulate the opening and closing of valves, which ensures that fluid pressure and flow remain within the specified operational parameters for the system. By exerting a precise force, the spring allows the valve to react to pressure fluctuations, which is necessary for the stable operation of hydraulic actuators and transmission controls.

This component is compatible with the Pettibone 30 12000 model. It is engineered to meet specific dimensional requirements, featuring a diameter of 19/32 inch and a total length of 4-1/4 inches. These dimensions are essential for maintaining the correct compression force required for the valve to function as intended within the assembly.

Valve springs are used throughout hydraulic circuits and transmission valve bodies to provide the necessary counter-force against fluid pressure. When a valve spring is installed, it ensures that the valve remains in its designated position until the system pressure reaches the threshold required to overcome the spring force. This mechanism is fundamental for controlling gear shifts and managing hydraulic power distribution across the machine.