Gland Design, O-Ring and Other Elastomeric Seals, Static Applications
压盖设计 O形密封圈和其他弹性密封件 静态应用
发布日期:
2022-08-17
本SAE航空航天标准(AS)为静态应用的弹性密封压盖提供了标准化压盖(凹槽)设计标准和尺寸。密封套专门设计用于压力超过1500 psi(10.3 MPa)时使用SAE AS 568尺寸O型环的应用,使用一个或两个防挤压(备用)环,以及压力低于1500 psi(10.3 MPa)时不使用备用环的应用。与as 4716相比,密封压盖的尺寸能够提供更大的挤压,从而在低温和低密封膨胀条件下实现更有效的密封。这些压盖不建议动态使用。主要用于静态外部密封。杆的尺寸与AS4716相同。除尺寸-001至-011和-104至-113外,气缸孔尺寸与4716相同。
This SAE Aerospace Standard (AS) provides standardized gland (groove) design criteria and dimensions for elastomeric seal glands for static applications. The glands have been specifically designed for applications using SAE AS 568 size O-rings at pressures exceeding 1500 psi (10.3 MPa) utilizing one ot two anti-extrusion (backup) rings and applications at pressures under 1500 psi (10.3 MPa) without backup rings. The glands have been sized to provide increased squeeze as compared to AS 4716 for more effective sealing at low temperatures and low seal swell conditions. These glands are not recommended for dynamic use. Primarily usage is for static external sealing.The rod dimensions are the same as AS4716. The cylinder bore dimensions are the same as AS4716 except for sizes -001 thru -011 and -104 thru -113.