Transcription of Tube Fitting Performance Product Test Reports PTRs
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Tube Fitting Performance Product Test Reports PTRs
Tube Fitting Performance Product Test Reports PTRsand Third-Party Product Approvals and RegistrationsTube GripThe main function of a tube Fitting is to grip the tubing sufficiently to contain system fluid. The tubing and Fitting must remain connected without leakage at maximum working pressure. When overpressure occurs, such as in proof testing or when pressure spikes occur outside normal operating conditions, the Fitting must also maintain both grip and seal on the tubing. Harder, heavy-wall tubing presents greater challenges for ferrule gripping action because it can be taken to higher pressure and is more resistant to the ferrule swaging or indentation.
Evaluating small molecule gas applications is important when determining if a tube fitting is reliable. Performance of a fitting in high-pressure gas applications must be evaluated under the conditions of initial assembly and repeated reassembly of the components. Repeatable seal integrity in high-pressure gas testing after reassembly is
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