SAE AS 4897 Hose Assembly - Test for Polytetrafluoroethylene (PTFE)

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of SAE AS 4897 testing. This SAE Aerospace Standard (AS) specifies the requirements for polytetrafluoroethylene (PTFE) hose assemblies for use in aviation fuel and lubricating oil systems at operating pressures for temperatures from -67 to 450°F.

Hose assemblies are also suitable for use within the same temperature and pressure limitations in aviation pneumatic systems where some gas diffusion through the wall of the PTFE liner can be tolerated. These hose assemblies are not recommended for use in pneumatic storage systems. In addition, facilities where the limits specified herein are exceeded or where the application, such as oxygen, is not specifically addressed in this document will be subject to buyer approval.

The standard specifies construction and performance requirements for hose assemblies. It defines the materials, dimensions, and tolerances of the hose, as well as the fittings, end connections, and clamps used to connect the hose to other components. The specification also outlines testing requirements and acceptance criteria for hose assemblies.

SAE AS 4897 also defines environmental and operational requirements for hose assemblies. It specifies levels of resistance to various environmental conditions, including temperature, humidity, and vibration, and defines the maximum operating pressure and temperature for assemblies. The standard also requires hose assemblies to meet certain fire resistance requirements.

In general, SAE AS 4897 provides a set of requirements and guidelines for the design, manufacture, and testing of low-pressure hose assemblies made of PTFE that can operate at high temperatures and meet flammability requirements. By following these requirements, manufacturers can ensure that their hose assemblies meet the performance and reliability requirements of the aerospace industry and can withstand the harsh environmental conditions and mechanical stresses they may encounter during operation.

EUROLAB assists manufacturers with SAE AS 4897 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.