Where Our Valves Fly
VTI APPLICATIONS
Engineered for the Extremes of Space, Defense & Beyond
Space valves play a critical role across every stage of a mission — from propulsion systems that precisely control fuel and oxidizer flow to thrusters, to pressure regulation valves that protect spacecraft structures and instruments from extreme temperature and pressure swings. They're essential in life-support systems, managing breathable air and water recycling for crewed missions, as well as in satellite propulsion, cryogenic fuel management, and in-orbit maneuvering. Because failure isn't an option in space, these valves are engineered to perform flawlessly in vacuum, radiation, and temperature extremes — often for years without the possibility of repair or replacement.
Mission Areas
Six Sectors. One Standard of Excellence.
Space & Launch
From pad to orbit and beyond
VTI valves have flown on the International Space Station, the MHI H-IIA launch vehicle, VEGA, Mars Science Laboratory, GeoLite, Orbital Express, MiTEx, and numerous U.S. Government programs. Our components manage propellant flow, pressure regulation, and life support in the harshest environment known to engineering.
Defense & Military
Qualified for the most demanding military programs
ValveTech has designed and qualified components for missiles, aircraft, undersea vehicles, and crew return vehicles. Our valves meet stringent military specifications and have been used in programs including the X-38 Crew Return Vehicle, the Expeditionary Fighting Vehicle, and the THAAD seeker head gimbal assembly.
Undersea Vehicles
Precision hydraulics for subsea operations
VTI has developed compact manifold assemblies for undersea vehicles, replacing multiple in-line components with integrated solutions. Our titanium manifolds combine check and relief valve functions in a single precision-machined body, reducing weight and leak points while maintaining full hydraulic performance.
Cryogenic Systems
Reliable sealing at liquid hydrogen temperatures
Cryogenic applications demand seals and valve components that remain leak-tight through extreme thermal cycling. VTI's proprietary cryogenic seal designs are reusable across multiple thermal cycles, with explicit helium leak rates measured on a mass spectrometer — a standard rarely matched by competing designs.
Aircraft & Targeting
Tight tolerances for airborne systems
From low-pressure relief valves for targeting pods to precision check valves for aircraft hydraulic systems, VTI delivers components that meet tight crack and reseat requirements across wide operating temperature ranges. Our engineering team provides full design and analysis support for any airborne fluid control challenge.
Miniature / High-Pressure
Maximum performance in minimal space
VTI's miniature solenoid valves deliver high performance in an extremely small package. Metallic materials are typically 430 CRES for magnetic parts and 300-series stainless for the remainder. Electron beam welding minimizes heat input and deformation. Parylene coatings insulate windings in the smallest designs, and seat sealing achieves internal leakage rates better than 1×10⁻⁴ sccs helium in high-pressure applications.
Featured Products
Application-Specific Components
Each product below was designed and qualified for a specific mission-critical application. Click Specifications to see full technical details.
Check, Poppet Valve
Part number 11086 is a low pressure check valve. The 3.85 inch diameter valve uses an o-ring seat design that can provide leakage rates better than 36 cc/hour helium. The valve has also been designed with a Kel-F seat for cryogenic applications.
Hydraulic Manifold
Part number 18030 is a 14.25" × 4.88" × 2.44" manifold designed for the Advanced Seal Delivery System undersea vehicle. The manifold contains a series of check and relief valves for operating various hydraulic devices. It features a common return port and 12 separate inlet ports, replacing 24 in-line mounted check and relief valves. All components are machined 6Al-4V ELI Grade Titanium.
Relief Valve — Crew Cabin Vent
Part number 11089-1 is a large pneumatic, poppet type relief valve used to vent the crew cabin on the General Dynamics Expeditionary Fighting Vehicle. The 1.426 inch diameter flow opening is sealed with an o-ring mounted in a dovetail groove. The valve is manufactured from aluminum with a black anodize coating.
Relief Valve — Targeting Pod
Part number 11169-2 is a low-pressure relief valve designed for the LITENING Targeting Pod. The valve has very tight crack and reseat requirements: 16.4 psid maximum cracking and 14 psid minimum reseat over the operating temperature range of –40°F to +160°F.
Pilot Operated Relief Valves
ValveTech has developed a line of low pressure, in-line, pilot operated relief valves. The design incorporates elastomeric seats for conventional environments and Kel-F seats for cryogenic operation. Materials include aluminum, stainless steel, and Inconel. The valve achieves very precise crack and reseat pressures with minimal hysteresis over temperature and pressure. End fittings include Gamah, PSI, and Hydraflow couplings.
Gimbal Assembly Manifold
ValveTech part number 18033 was designed for an IR&D program and used as a Coarse Gimbal Assembly for the THAAD seeker head. The stainless steel manifold contains a welded bellows accumulator assembly and a 2-way solenoid valve assembly. The manifold also contains provisions for mounting struts that are hydraulically locked in place by the solenoid valve.
Miniature High-Pressure Solenoid
ValveTech's miniature solenoid valves provide high performance in an extremely small package. Metallic materials are typically 430 CRES for magnetic parts and 300-series stainless steel for the remainder. Welds are done using electron beam welding to minimize heat input and deformation. Parylene coatings insulate coil windings in the smallest designs. Internal leakage rates are better than 1×10⁻⁴ sccs helium in high-pressure applications.
Our Commitment
Failure Isn't an Option
Every valve we ship is 100% acceptance tested. Full material traceability and qualification heritage are maintained on every program — because our components operate in environments where repair or replacement is impossible.
Work With Us
Have a Mission-Critical Fluid Control Challenge?
Our engineering team provides full design, analysis, and manufacturing support — from concept through qualification. Tell us about your application.