What is used to determine hose twist in a flexible hose assembly?

The identification strip, commonly referred to as the lay line, is crucial for determining hose twist in a flexible hose assembly. This strip runs along the length of the hose and typically features printed information that includes the manufacturer's details, hose specifications, and important safety ratings.

When assembling flexible hoses, it is vital to ensure that the hose does not have any unintended twists, as these can lead to operational issues, such as compromised flow, increased wear, or even failure of the assembly. The identification strip serves as a visual guide; it helps ensure that the hose maintains the proper orientation during installation. If the strip is not straight or is twisted, it indicates that the hose has been installed incorrectly or suffers from torque-related issues.

In contrast, while hose length, material, and fitting type are important considerations in the overall performance and application of the hose assembly, they do not provide a mechanism for monitoring or determining twist during the installation process. Therefore, the identification strip is the direct method used to check and verify the twist in a hose assembly.