Flow Control Valves

Learn how?to determine speed and flow rates and differential pressure.

Prerequisites

General knowledge of hydraulic schematics is required. Review of the lesson, Hydraulic Schematics, is recommended.

Description

This is the eleventh lesson in the iKNOW Industrial Hydraulic Power Library. The lesson demonstrates how to determine speed and flow rates and differential pressure. It describes various valves, their components, and their uses.

Objectives

Using a system schematic, explain the conditions that affect flow in a hydraulic system, Using a system schematic, explain how changing the flow rate in a hydraulic system affects the performance of the actuator, Identify the schematic symbols for flow control valves, Identify the functions of ports on a flow control valve, Describe the operation of a needle valve, and trace the path of the fluid through the valve, Describe the operation of a pressure-compensated flow control valve, and trace the path of the fluid through the valve, Describe the operation of a check valve and Using a system schematic, describe the operation of meter-in and meter-out circuits.