Servo Valves and Specialty Controls

B4000 2 Stage Jet-Pipe Servovalve
129 CIS at 1000 PSID

Two stage jet-pipe servovalves for reliable 4-way flow control in high temperature, high vibration environments. New technology concepts improve reliability and performance with minimal thermal shift while reducing size, weight and cost.

  • Contamination Resistance
    Jet pipe pilot stage offers maximum resistance to contamination since it will pass contaminant up to 330 microns (.012 inch) when supply flow is protected by a 150 m port screen.

  • Improved Performance
    Oversize ports, metering elements and flow passages allow high flow rates with low pressure drop. Thermal shift is minimized by making housing and all metering components of materials having similar coefficients of thermal expansion.

  • Less Weight, Size & Cost
    Result from a parts count 40% less than for ordinary valves. Adhesives and screws are not used because torque motor components are TIG welded in a stainless steel tubular "exoskeleton", combining the torque motor structure and cover. Screws, O-ring and separate aluminum cover normally used are not required. Size and weight are further reduced with an optimized torque motor magnetic circuit allowing the smallest possible envelope consistent with performance.