Pressure line filtration uses what type of filter?

Pressure line filtration uses what type of filter?

• A. High-pressure
• B. Vacuum
• C. Low-pressure (correct)
• D. Medium-pressure

Answer: (C)

In a hydraulic system, filtration on the pressure line is placed after the pump, where fluid is already pressurized, and the goal is to remove contaminants without creating a large drop in pressure. The filter used in this position is described as low‑pressure because it’s designed to tolerate the system’s pressure while offering a small differential pressure across the element. This keeps the flow to the actuators strong and responsive and avoids wasting energy or causing overheating from excessive flow restriction. Using a high‑pressure filter would increase the pressure drop and could starve the circuit, while vacuum isn’t relevant to the pressure line, and medium‑pressure filters wouldn’t match the typical differential‑pressure requirements for this role.