Hydraulic Data: The rated flow per spool land at a valve pressure drop of 35 bar (500 psi) ranges from 95 to 225 l/min (25 to 60 gpm), with standard configurations of 95, 150, and 225 l/min (25, 40, and 60 gpm). The maximum operating pressure is 210, 350, or 490 bar (3,000, 5,000, or 7,000 psi).
Performance Data: The 100% step response time is 11 to 33 ms (response at 3,000 psi system pressure), and the frequency response is 80 to 85 Hz (at 90° phase lag).
Electrical Data: The rated signal is 8 to 200 mA, with standard configurations of 8, 15, and 40 mA.
Physical Data: The weight of the steel body is 7.26 kg (16 lbs), and the weight of the aluminum body is 3.52 kg (7.8 lbs).
Functional Features: It is a two-stage flow control mechanical feedback valve. The low-friction double-nozzle pilot stage ensures high dynamics, high resolution, and low hysteresis. The valve has a large spool driving force and a rugged design, which can ensure long-term stable operation. It uses a dry torque motor and has an optional 5th port for separate pilot supply. Both filtered and filterless models are available, and the first-stage filter can be replaced on-site, which is convenient for maintenance.
Application Scenarios: Widely used in industrial fields such as aerospace, military, and industrial machinery. It can be used in the hydraulic control system of aircraft to ensure the stable operation of the aircraft’s flight control system; it can also be used in the test system of industrial machinery to provide precise flow control for the test process.
