Hydraulic Control Valves & Modules

Hydraulic control valves provide directional control flow for hydraulic systems, making them a cornerstone of hydraulics for aerospace and defense. Our multi-functional hydraulic valve modules provide actuation and system control logic, ensuring precision and reliability in critical applications. They can be used as standalone assemblies for in-line system relief and pressure reduction at pressures up to 5,000 PSIG. We offer over 45 integrated hydraulic valve modules, including multiple hydraulic pressure valve and filtration elements as well as single-function integrated hydraulic valve module assemblies, all designed to meet the demanding needs of hydraulics for aerospace and defense.

Arkwin fabricates basic hydraulic control valve elements such as pressure reducers, relief valves, and directional controls. While individual components are simpler, integrating system components into single packages can be weight-effective and enhance reliability—key advantages in hydraulics for aerospace and defense. In the sixty-plus years since its founding, Arkwin Industries has emerged as a preeminent designer of such integrated packages.

Typical designs include:

• 2 & 3 Position Direction control
• Spool and Sleeve type
• Poppet type
• Solenoid operated pilots
• Manual/Mechanical operators and inputs
• Emergency overrides and bypass circuits
• Delay and sequencing valves
• Slow open/close features
• Filter modules per Mil-F-8815
• Differential pressure indicators
• Low and high-pressure relief valves, including thermal relief
• Single and Bi-directional flow regulators and other rate controls
• Pressure reducing valves
• Pressure/temperature switches and transducers
• Unloading and isolation valves
• Bleed/dump valves and combination bleed/relief valves
• Ground support provisions
• Check valves
• Provisions for electronics
• Rip-stop construction
• Fire resistance/proof

Arkwin’s modules have been designed to meet many stringent customer specifications. Our designs utilize petroleum-based oils, phosphate esters, and jet fuels as working media. Production designs employ aluminum, steel, and titanium construction, with operating pressures up to 5,000 PSIG.

These applications span a wide range of platforms, from the A-10 Thunderbolt to the CH-53K, and many aircraft in between, including the V-22 Osprey, A320, and F-35 Lightning II.