This series of electro-hydraulic servo valves are of dry torque motor and 2 stage hydraulic amplifier design with two symmetrical nozzle damper as pilot stage driven by two air-gap torque motors, and 4-way valve as output stage. The valve spool features large driving force, and its position signal is mechanically fed back by a cantilever spring rod. The fifth oil port can be used for separate pilot supply, and the disc filter of the pilot valve is field-replaceable. It stands out for simple and robust structure, reliable performance and long service life, and is widely used in electro-hydraulic servo control systems of aviation, metallurgy, chemical and other industries.
-- Working pressure: 5~75L/min
-- Working pressure: ≤31.5MPa (port P, X, A and B), ≤14MPa (port T)
-- Ambient temperature: -29℃~+135℃
-- Oil temperature: -29℃~+135℃
-- Working medium: petroleum-based hydraulic oil, or other oils as needed
-- Filtration accuracy: β10≥75 (standard type), β5≥75 (long life design)