Kinking or puncture at the base of the fitting

Technical explanation

Manufacturer routing guides emphasize preventing the hose from being forcibly bent and twisted at the base of the connection. Because the connection is rigid and the hose is flexible, incorrectly set-up geometry can concentrate the load in a narrow area. Selecting a thicker hose or one of a higher pressure class does not by itself solve a routing problem. The required straight section and minimum bend radius must be verified from the relevant product documentation.

Source: S017, S031

Topic-specific checkpoints

Source: S017, S031

How to evaluate it in practice

Record the distance of the damage from the fitting, its orientation and its relationship to moving parts. Create a safe inspection plan to observe the assembly throughout the full range of motion of the equipment. Evaluate suitable connection orientation, elbow or support options with a technical person; shortening or lengthening the hose should not be accepted as a solution on its own. After the change, verify not only the static appearance but also whether tension develops during operation.

Original editorial recommendation; not a clause of a standard.

Frequently asked questions

Does fitting a protective spiral at the fitting exit solve the problem?

A protector does not correct incorrect routing or bend geometry. The source of the actual load must be eliminated separately.

Source: S017, S031