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BASIC PNEUMATIC FORMULAS. Basic Valve Sizing: Air valves are sized for flow capacity (Cv) based upon a given cylinder piston size, stroke and travel time requirements. Cv us actually a flow coefficient that measures the amount of air a device can pass. The following formula can be used for air valve sizing:
Part II covers some specific calculations and their formulas and has examples of how to do such calculations. The Appendix contains a set of charts, graphs, and other helpful tables
Learn about the basic hydraulic formulas, calculations and parameters that apply to hydraulic engineering and how they determine hydraulic system and component performance.
Currently liquids being tested include mineral oil, water, phosphate ester, water based ethylene glycol compounds, and silicone fluids. The three most common types of hydraulic fluids are petroleum-based, synthetic fire-resistant, and water based fire-resistant.
Identify and explain basic components and functions of fluid power devices. Differentiate between the characteristics of pneumatic and hydraulic systems. Calculate values in a fluid power system utilizing Pascal's law. Calculate flow rate, flow velocity and mechanical advantage in a hydraulic system.
Hydraulic pumps are shown by solid arrow heads. Pneumatic compressors are represented by hollow arrow heads. Figure 19 provides common symbols used for pumps (hydraulic) and compressors (pneumatic) in fluid power diagrams.
Introduction. Pneumatics is a method of providing motion by using compressed air. Pneumatic systems use compressors to store a volume of air. Control valves and piping are then used for direction and flow rate of the stored air to provide air to the actuator of the system.
