SAE J2587:2019 pdf free

SAE J2587:2019 pdf free.Optimized Fuel Tank Sender Closure
Gasket should be sufficiently rigid or otherwise supported by mating components such that it cannot be dislodged from its operating position during the usual assembly of mating components. The gasket and mating components should be designed so that the gasket cannot be dislodged from its operating position in a reasonably severe vehicle crash by minimizing the permanent or gross momentary distortion of, or damage to, the gasket joint.
System design stack up tolerances must comply within the seal manufacturer’s recommended compression range of the material utilized and geometry. Example: Seals made of FKM 70% fluorine, with durometer points Type A 65±5, Compression set 30% Max after 70 hours at 150 °C. These properties may not apply to other gasket material.
The joint should be designed to meet the performance requirements in this document at the extremes of the tolerance stack-up.
Gasket or gland should be designed so that gasket volume does not exceed gland volume at the maximum material tolerance condition. Volume changes caused by fuel absorption should be included in this tolerance stack up.
Gasket should not consist of a traditional “flat” design unless the mating components are stiff enough to be considered rigid when compared to the gasket stiffness throughout the expected tolerance stack-up. (Flat gasket designs with limited compression range compressed between flexible flat tank and cover surfaces are not recommended).
Assembly aid lubricants, adhesives, oil residue from prior metal working operations, etc. can mask the presence of leaks in the interface between mating portions of a joint or connection. Wherever practical, use of these substances should be eliminated from parts used to establish process capability.
The use of these substances makes reliance on 100% leak testing impractical. SPC methods based on leak prevention are the only reliable approach to producing leak free components and modules.It is recommended that the test method measure variable data in support of an SPC approach to leak prevention rather than a straight attribute test on a 100% basis. The PV test program should fully support the IP test process used.SAE J2587 pdf free download.