AM.II.F.K10
KnowledgePressure regulators, restrictors, and valves.
From the FAA library
- Chapter 12: Hydraulic & Pneumatic Power Systems › High-Pressure Systems › Pneumatic System Components
speed-regulating unit is the variable restrictor. [Figure 12-75] It contains an adjustable needle valve, which has threads around the top and a point on the lower end. Depending on the direction turned, the needle valve moves the sharp ... airflow through the restrictor. Filters Pneumatic systems are protected against dirt by means of various types of filters. A micronic filter consists of a housing with two ports, a replaceable cartridge, and a relief valve. Normally, air enters the inlet…
- Chapter 10: Aircraft Systems › Sources of Power for Gyroscopic Instruments › Pressure-Driven Gyroscopic Instrument Systems
development of self-lubricated dry pumps greatly reduced pressure output contaminates. This made pressure gyro systems possible. At high altitudes, the use of pressure-driven gyros is more efficient. Pressure systems are similar to vacuum systems and make ... same components, but they are designed for pressure instead of vacuum. Thus, a pressure regulator is used instead of a suction relief valve. Filters are still extremely important to prevent damage to the gyros. Normally, air is filtered…
- Chapter 10: Aircraft Systems › Vacuum Systems › Typical Pump-Driven System
pressure into the atmosphere. Selector valve—In twin-engine aircraft having vacuum pumps driven by both engines, the alternate pump can be selected to provide vacuum in the event of either engine or pump failure, with a check valve incorporated ... inline restrictor valve performs this function. This valve is either a needle valve or a spring-loaded regulating valve that maintains a constant, reduced vacuum for the turn-and-bank indicator. Figure 10-89. A vacuum regulator, also known…