Gland Design, O-Ring and Other Elastomeric Seals

Standard:
Revised:
  • 2011-03-14
 
  • CURRENT
Publisher:
  • SAE International
Pages:
33
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 (10.34 MPa) utilizing one or two anti-extrusion (backup) rings and applications at pressures below 1500 psi (10.34 MPa) 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. For static external applications i.e. where the application is overboard and sealing to atmosphere, glands should be designed in accordance with AS5857.

Rationale:

Revision B to AS4716 is a general update using current SAE format, minor corrections and dimensional tables added in metric units. Reference to AS5857 for static external (overboard to atmosphere) glands has also been added.

History:
Standard Published Revision Status
AS4716B 2011-03-14 Latest Revised
2005-07-21 Historical Revised
1993-06-11 Historical Issued
AKA:
  • SAE AS 4716
Sector:
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