What is considered a standard design configuration of a servovalve?
The manufacturer should make available a written description of the design configuration of the servovalve, together with a brief description of the operating principles. Designs for flow control servovalves vary widely, reflecting the preferences and experiences of both manufacturers and users. A basic distinction is the number of stages of hydraulic amplification utilized within the servovalve. In a single stage valve, the torque motor is coupled directly to the output stage which is usually a sliding spool. In two stage servovalves, an additional hydraulic amplifier is interposed between the motor and the output stage. A moving flapper together with one or two nozzles, a jet pipe with receivers, or a small sliding spool are commonly utilized as the intermediate hydraulic amplifier. Some valves utilize three stages of hydraulic amplification to achieve high capacity flow control. Single stage servovalves often use flow force compensation to reduce the required electrical driving forc
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- What is considered a standard design configuration of a servovalve?
