Moog D661-4033 Pilot-Operated Servo Valve
- Product Introduction: It belongs to Moog’s D661 series pilot-operated servo valves, which adopt an optimized valve body design and an improved servo jet pilot valve design. It has excellent performance and is suitable for various industrial control occasions.
Detailed content
- Technical Specifications: It conforms to ISO 4401 size 05. The rated flow is 20 to 200 l/min (5.3 to 53 gpm) at Δp 35 bar (500 psi) per land, and the maximum flow can reach 250 l/min (65 gpm) when the second T-port is connected. The maximum operating pressure is 350 bar (5,000 psi), the 100% step response time is 6.5 to 14 ms at 210 bar (3,000 psi), the supply voltage is 24 VDC (18 to 32 VDC), and the rated signal options include ±10 V, ±10 mA, 4 – 20 mA.
- Functional Features: The optimized valve body design ensures high rated flow and improves the efficiency of the system. The improved servo jet pilot valve design results in excellent dynamic response, which can quickly adjust the valve core position according to the control signal. It also has different fail-safe options to choose from, which can be matched according to the specific requirements of the application to ensure the safe operation of the system.
- Application Scenarios: It is applied to the aerospace field to control the hydraulic system of aircraft, such as the control of landing gear and flaps, to ensure the safe take-off, landing, and flight of aircraft. It is also used in the automotive manufacturing industry, such as the control of the welding robot’s hydraulic system in the automobile production line, to ensure the precision and stability of the welding process. In addition, it can be used in the hydraulic control system of power generation equipment to control the movement of turbines and other components, improving the efficiency and stability of power generation.












