What is the role of check valves in hydraulic lines longer than 35 feet?

The role of check valves in hydraulic lines longer than 35 feet is primarily to maintain hydraulic pressure. This is especially important in longer hydraulic lines, where the pressure can drop due to various factors such as friction loss or backflow of fluid. The check valve prevents the backflow of fluid, ensuring that the system remains pressurized and operates efficiently.

Check valves are designed to allow fluid to flow in one direction while blocking it from flowing backward. This helps in maintaining the necessary pressure in the hydraulic system, which is crucial for the proper functioning of hydraulic devices. Thus, their use in long hydraulic lines is vital to sustaining the required performance levels and preventing issues that could arise from pressure drops. The focus on pressure maintenance highlights the importance of these valves in preventing operational inefficiencies and system failures.