Valcor’s first design, created over 60 years ago, was a floating seal shut-off valve. Valcor has produced over 3 million of this extremely reliable, lightweight, and compact design. The V5000 design is Valcor’s “flagship” design and uses a floating seal design that has demonstrated superior longevity in high contamination environments. Chances are that this valve design can be found on every commercial aircraft in service, anywhere in the world.

Variants of this design are used for APUs, fuel control, and fuel management systems. Valcor provides custom designs to meet customer’s specific system requirements, such as interface/envelope, materials, and power.

Shown below is an APU fuel shut-off valve that includes position indication. This valve has custom mounting and an environmentally protective hard coating.

Valcor can retrofit designs where other vendors cannot meet performance. Valves can also be designed with special functions such as position indication, manual override, and back pressure relief.

Valcor offers several hydraulic control component designs. A major product line are our hydraulic accumulators. Valcor has been a leading manufacturer of hydraulic accumulators for aircraft, helicopters, and ground vehicles for over 20 years. Accumulator types include self-displacing and non-displacing, piston and bellows configuration, and cylindrical and spherical configurations. Valcor also produces maintenance free accumulator designs that are currently on several active platforms.

Valcor’s use of advanced composite structures and innovative metal forming techniques produce extremely lightweight designs. Valcor’s facilities are equipped to manufacture fiber overwrap on lightweight shells and liners. Overwrap fibers include steel wire, fiberglass, Kevlar®, and carbon graphite. Shell and liner materials include aluminum, steel, and titanium. Valcor can custom design an optimized lightweight, high strength accumulator for your specific requirements.

Valcor standard and self-displacing piston accumulators have many important design features. A dual seal configuration is used for positive gas-fluid separation. These accumulators are self-lubricating for extended cycle life. All accumulators have a leak tight construction. Accessories such as temperature sensors, pressure gages, piston position indication, and pressure switches can be added to the designs.

Valcor’s welded bellows style offer maintenance free designs with the highest reliability.

Valcor’s hydraulic fluid control devices also include solenoid valves, brake valves, and relief valves. Valcor has a flow control valve design that provides a tight flow range for a jet fighter hydraulic system. This valve maintains a flow range of ±2.5% for a working pressure of 5,000 psi and weighs less than 1 pound.

Valcor supplies manually operated brake valves that deliver smooth regulated pneumatic or hydraulic outlet pressure to the emergency and parking brakes. This supply pressure is proportional to the lever position. The actuation force for the lever is minimal and brake valve designs are available as single, double, or quad channel configurations.

Valcor offers a wide range of fluid control solutions for environmental control system applications. These components are used on military and commercial platforms for applications such as OBIGGS, potable water systems, water condensation management, solenoid actuators, and high temperature valves. These valve designs can incorporate latching, position indication, check valve, pressure relief, or be integrated into a manifold assembly.

The valve shown below is used to cool a motor that runs an OBIGGS system. This valve is extremely lightweight and provides high flow capacity to the motor.

Some aircraft environments are challenging with extreme temperatures and mixed flow media. This valve shown below is part of a water extraction application used on a jet fighter platform. Often times, there is ice in the air stream and the incumbent’s solution would fail during this condition. Valcor was able to offer a design that worked despite the presence of ice.

Valcor designs and manufactures fluid control devices for all aspects of aircraft system control. These devices are designed to handle very high temperature engine bleed air (up to 900°F) and high contamination system conditions. Valcor’s utilizes an “isolated” pilot design to separate the solenoid from the high fluid temperatures. Seal material selection is crucial for high temperature performance.

Valcor utilizes a venturi throat design to minimize pressure drop through the valve. For some applications, a multiple venturi design is utilized to increase flow capacity while minimizing valve stroke and thus power consumption.

Valcor has valve designs that handle various fluids found in aircraft systems. The valve shown below handles PAO coolant with a coaxial flow design for easy installation.

Valcor can customize a solution into useful assemblies. Special poppet designs offer advantages with low leakage at high temperatures. This particular manifold mixes engine bleed air to maintain a constant outlet air temperature used for Anti-ice.

Manifold and assembly designs contain many different components. This includes solenoid valves, check valves, relief valves, burst disks, position indication, and pressure and temperature sensors. The assembly shown below is a regulator and shutoff valve that is a lightweight compact system featuring two-stage regulation, a relief valve, safety burst disk and a solenoid valve.

The electronic cooling manifold is a four port design that monitors a coolant system for leakage. Should a leak develop, the manifold will actuate isolation valves. This manifold utilizes flow sensors to monitor for leakage.

Valcor designs extend to applications for wave guide systems. The pressurization system shown below is a self-contained assembly that provides precisely regulated absolute or gage pressure to wave guide tubes for use on radar and EMI emitters. The regulators feature a thermal compensator that outlet pressure accuracy over a large operating temperature range. This system includes a charge port, storage sphere, solenoid operated shutoff, two stage regulators, supply and exit pressure gauges, supply and exit pressure switches, and a manual test valve.