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美国政府科技报告
>Structural Integrity, Accelerated Corrosion and Flow Capacity Tests of Parker Aircraft Company Valve, Check, One-Inch, Airborne, Fuel Parker Part Number 2630014. Gd/a Part Number 27-02402-5
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Structural Integrity, Accelerated Corrosion and Flow Capacity Tests of Parker Aircraft Company Valve, Check, One-Inch, Airborne, Fuel Parker Part Number 2630014. Gd/a Part Number 27-02402-5
Two units were submitted for testing. The test program consisted of diameter measurements, accelerated corrosion, flow capacity and burst pressure tests. A 30-day accelerated corrosion test caused severe corrosion of the body base metal; but, there was no evidence of stress corrosion cracking. The pressure drop was 5.2 psi (allowable is 9 psi) at a water flow rate of 70 gpm. The burst pressure of a unit free of corrosion was 5l00 psig. A unit previously subjected to a 30-day accelerated corrosion test demonstrated a burst pressure of 3650 psig. Minimum required burst pressure is 2400 psig. A detailed description of all tests and results, including a list of equipment employed in the performance of the test program, is presented in this report. (Author)
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