What inspection should be conducted after the assembly of a flexible hose?

The selection of proof-testing by applying pressure to the inside of the hose as the appropriate inspection after the assembly of a flexible hose revolves around ensuring the integrity and safety of the assembly. This process helps confirm that the hose can withstand operational pressures without leaking or bursting. Proof-testing simulates the conditions the hose will experience in service, thereby providing confidence that it is fit for its intended application.

While visual inspection for defects is indeed an important first step to identify any obvious issues like abrasions or external damage, it does not assess the structural integrity of the hose under pressure, which is critical for safety. Measurement of length may be relevant for compliance with specifications, but it does not evaluate the functionality of the hose itself. Checking for color codes could assist in identifying types and specifications but does not provide insights into the hose’s performance under working conditions. Thus, applying pressure during proof-testing is essential for verifying that the hose assembly meets safety standards and is capable of performing reliably in its intended environment.