PRODUCT WORLD
Seal for hydraulic aerospace systems
High-pressure proportional pressure controls
New L-Cap seal for hydraulic systems in aerospace applications is made with proprietary Avalon PTFE, Arlon PEEK, and elastomer materials. It exceeds industry standards for performance and durability, ensuring long service life, minimal uid leakage, and excellent performance across a broad temperature range. Used in critical ight actuation systems, the L-Cap seal provides superior uid sealing in hydraulic cylinders under high pressures. The proprietary Avalon PTFE, Arlon PEEK, and elastomer materials ensure high durability and minimal wear over the lifetime of an aircraft. These proprietary materials exceed the low-temperature performance requirements set forth by aviation industry standards without sacriďŹ cing high-temperature performance. The L-Cap seal also delivers unmatched leak prevention, exceeding customer requirements for minimizing hydraulic uid leakage. L-Cap seals are also easier to install than other aviation rod seals, reducing actuation system failures upon initial startup.
The Cordis HP500 pressure controls use the EV line of electronic valves allowing for steady, repeatable downstream pressure under static conditions. The result is a precise linear pressure control within a closed-loop system. The Cordis uses a microcontroller, integrated pressure sensor, and two Clippard EV electronic valves. The inlet valve is connected to the moderately regulated supply pressure, and the exhaust valve is connected to a port that vents excess pressure to the atmosphere. Once a command is increased, the inlet valve opens up to allow supply pressure to pass over the sensor element providing an active feedback for the micro-controller to satisfy the set point in the process. If at any point, the sensor detects a value higher than the set point, the exhaust valve will modulate open to vent o the excess pressure to maintain a stable and accurate control pressure in the process. The Cordis HP500 pressure regulator is adaptable to a variety of sensors that can close the loop around pressure. It oers: • • • •
Smooth linear control Pressure range of 0 to 500 psig Integrated internal or external sensor feedback Customizable pressure ranges and mounting options
Screw-in, cartridge-style hand pump The DCHP102 screw-in, cartridge-style hand pump with integrated dual check valves is suitable for hydraulic backup, hydrostatic testing, heavy-equipment parking brakes, and safety applications — this hand pump displaces hydraulic uids. The seat is made from hardened steel for long operating life. Doering’s standard plating, used on the DCHP102, has superior corrosion resistance. The piston is treated and hardened for improved wear and corrosion, heat, and friction resistance. Doering’s DCHP102 hand pumps are available for operating pressures of 2,100 psi (145 bar) or 3,000 psi (207 bar). Their operating temperature ranges are –40 to 212°F (–40° to 100°C). The lever socket rotates 360°, and handle lengths are 9, 16, 20, and 24-in. 50
FLUID POWER WORLD
10 • 2020
www.fluidpowerworld.com
