Industrial Valves #4964583

Fuel check baffle valves are installed onto the ribs of the aircraft wing. With its low pressure drop, low leakage rate, and lightweight design, this valve is an ideal choice when properly selected for the right application. The fuel check baffle valve has an elegantly simple design, yet is extremely reliable and several variations of this check valve have been produced by Parker for over 30 years. To facilitate inboard fuel movement, a number of check valves are installed along the ribs that form the boundaries between these compartments. These are known as baffle check valves or flapper check valves. The material and finishes used in the construction of the baffle check valve, and those of similar and previously qualified valves, are unaffected by several environmental conditions listed in RTCA DO-160 and MIL-STD-810. APPLICATIONS: Commercial aircraft, military fighters and transports, business and general aviation. FEATURES AND ATTRIBUTES: Fundamental features of the baffle check valve include the following:Certified to withstand high vibration levels and demanding engine blade out requirementsLess than 0.1 lbsVery high mean time before failures (MTBF)Nitrile seal designed to handle several commonly used fluidsExcellent pressure-drop characteristics Rated for more than one million endurance cycles

The Parker Aerospace automatic bleed valve provides automatic detection and bleeding of air in a hydraulic system. This Parker Aerospace proprietary technology offers the advantage of maintenance-free air management similar to air and oil systems while preserving the benefits of a closed system for improved performance. The device is typically mounted directly to the reservoir as a line-replaceable unit and may be controlled through the aircrafts computing system. Automatic air bleed valves can be designed into reservoir manifolds, or can also be remotely located wherever air collects in a system. This would allow existing fleets to benefit from reduced maintenance time and increased hydraulic system performance. TYPICAL OPERATIONThe valve can be located at high points in the return line of the hydraulic system where air is known to collect. With 28 VDC applied to the automatic bleed valve, onboard electronics are used to control a leak-free solenoid valve that purges air from the system. APPLICATIONS:This technology is already qualified for use on the Boeing 787 and Airbus A350 XWB. OPTIONAL FEATURES:In addition to our existing units, the Parker Aerospace product development team has the skill set and engineering tools to custom design an automatic air bleed valve that will meet your specific application requirements. Please contact us to see how we can engineer a solution for your application. The valve can be designed to operate autonomously, making its own decision to purge air from the hydraulic fluid. Alternatively, the valve can be wired to allow control from the aircraft computer, based on flight profile. FEATURES AND BENEFITS:Automatic detection and bleeding of air in a closed-hydraulic system for improved performanceProprietary technology offers the advantage of maintenance-free air management of air and oil systems Onboard electronics are used to control a leak-free solenoid valve that purges air from the systemEliminates need for manual reservoir bleed, saving time and hydraulic fluid

The valve is spring-loaded to the normally closed position to provide motive flow line isolation from downstream equipmentlines when the motive flow supply is non-operational. This elegantly simple design is extremely reliable and several variations of this valve have been produced by Parker for over 30 years. A fuel swing check valves is an ideal choice if surge pressures and any hammering effects are an important design consideration. This valve is typically installed horizontally and with the hinge up so that in the unlikely event the torsional spring should break, the valve shall fail close. With its low pressure drop and low leakage rate, this valve is an ideal choice when properly selected for the right application. The material and finishes used in the construction of the valve and those of similar, previously qualified valves are unaffected by several environmental conditions listed in RTCA DO-160 and MIL-STD-810. APPLICATIONS: Commercial aircraft, military fighters and transports, business and general aviation. FEATURES AND ATTRIBUTES: Fundamental features of the fuel swing check valve include the following:Very low pressure dropInternal components are completely shielded by an aluminum alloy body from the environmentLow Internal leakage