Product Introduction: A rugged variant of Moog’s D661 series, this servo valve is engineered for operation in harsh environments, including high humidity, vibration, and contamination. It retains the series’ precise control capabilities while incorporating protective features to ensure reliability in challenging conditions. The valve is suitable for outdoor or heavy-industry applications where standard components may fail.
Technical Specifications: Rated flow ranges from 30 to 150 l/min (7.9 to 39.6 gpm) at 35 bar (500 psi) pressure drop. Maximum operating pressure is 350 bar (5000 psi). The valve features an IP65-rated enclosure to resist dust and water ingress. Operating temperature range is -40°C to 85°C (-40°F to 185°F), accommodating extreme climate conditions. Vibration resistance meets MIL-STD-883 standards.
Functional Features: Enhanced sealing prevents fluid leakage and contamination ingress, extending service intervals. The pilot stage uses a filtered port to protect internal components from particulate matter. High-strength materials, including stainless steel internals, resist corrosion in marine or chemical processing environments. Compatible with high-viscosity hydraulic fluids, expanding application flexibility.
Application Scenarios: Used in offshore oil and gas equipment, controlling hydraulic actuators for drilling rigs and subsea valves. Integral to construction machinery operating in harsh climates, regulating crane and excavator movements. Applied in waste management systems, controlling hydraulic compactors and conveyors in dusty, high-moisture environments.
