Electric Feedback Dual Nozzle Flapper Two-Stage Servo Valve FF-701 Series

The FF-701 series electro-hydraulic servo valve is a force feedback two-stage dual nozzle flapper high-flow servo valve with electric feedback. Under a pressure difference of 21MPa, its flow range is 6.5L/min to 100L/min. This series of electro-hydraulic servo valves is similar to the FF-131 series. On the basis of the latter, it adds an LVDT valve core position sensor and a controller for position closed-loop control, resulting in a smaller hysteresis, higher resolution, better repeatability, and it combines the advantages of force feedback servo valves and electric feedback servo valves, making it more convenient to use. The standard products of this series of servo valves adopt an aluminum alloy housing, which is lightweight. The product has an external electrical zero adjustment structure, which is convenient for users to adjust according to actual needs. The product has the advantages of fast dynamic response, good linearity, small zero drift, stable working performance, high reliability, long service life, small internal leakage, and low power consumption. The product mounting surface has an optional fifth oil supply port, which can supply oil separately to the pilot stage. If the user's system pressure is particularly high, products with stainless steel housings can be customized.