Servo valve G771K202A is a system composed of torque motor, two-stage hydraulic amplifier and mechanical feedback. The first stage of hydraulic amplification is a double nozzle baffle system; the second stage of amplification is a slide valve system.

Torque Motor: An electro-mechanical converter that produces rotational motion proportional to an electrical command signal, used in the input stage of a servo valve. Torque motors include coils, pole pieces, and armatures. The armature is mounted on a thin-walled spring tube that acts as a fluid seal between the torque motor and the hydraulic portion of the valve. The armature, bezel and feedback lever are rigidly held and supported by a thin-walled spring tube.

 

Technical parameters of servo valve G771K202A

Rated Flow: 63 lpm

Resolution: Hysteresis: Maximum allowable working pressure: 32MPa

Normal working pressure: 14MPa

Working temperature: -29~135℃

Sealing material: Viton

 

 

vacuum pump seperatorsealing P-1753

vacuum pump valve box P-1758

vacuum pump sealing gasket P-1759

vacuum pump gate P-1761

vacuum pump front plate P-1762

vacuum pump rear plate P-1762

vacuum pump Protective cap P-1803

vacuum pump front bearing P-1825

vacuum pump rear bearing P-1825B

vacuum pump seperator cover P-1836

vacuum pump Wave spring P-1916

vacuum pump Separation hood P-1937A

vacuum pump oil plate P-1945

vacuum pump filter spring P-2037

vacuum pump sealing P-2332

vacuum pump bearing P-2335

vacuum pump vacuum pump seperator P-2402

vacuum pump screw P-2412

vacuum pump valve plate P-537

vacuum pump valve spring P-540

vacuum pump spring bracket P-545

vacuum pump spring SK-831

DFYLSYC-2023-03-16-A