The fuel swing check valve is an inline, swing flapper check valve that has many uses; one of which is to prevent reverse fuel flow from the ejector pumps to the engine feed subsystem.
The valve is spring-loaded to the normally closed position to provide motive flow line isolation from downstream equipment/lines 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.
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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 drop -
• Internal components are completely shielded by an aluminum alloy body from the environment -
• Low Internal leakage