SAE AS 4716A (R) Gland Design, O-ring and Other Elastomeric Seals

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SAE AS 4716A Document Information:

Title
(R) Gland Design, O-ring and Other Elastomeric Seals

SAE International

Publication Date:
Jul 1, 2005

Scope:

This SAE Aerospace Standard (AS) provides standardized gland (groove) design criteria and dimensions for elastomeric seal glands for static and dynamic applications. The glands have been specifically designed for applications using SAE AS568 size O-rings, with related class 2 tolerances, at pressures exceeding 1500 psi (10,342 kPa) utilizing one or two anti-extrusion (backup) rings and applications at pressures under 1500 psi (10,342 kPa) without backup rings. The glands have been sized to provide sufficient squeeze for effective sealing while at the same time limiting squeeze to allow satisfactory operation in dynamic applications. While this specification covers the basic design criteria and recommendations for use with standard size O-rings, these glands are also suitable for use with other elastomeric, and polytetrafluoroethylene (PTFE) based seals and packings.

Keywords:

Gland

Groove

O-ring

Packing

Seal

Squeeze

Dynamic

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