Benefiting from good flexibility, PVC Corrugated Flexible Hose can be loosely coiled. Gentle coiling is widely adopted for storage and transportation and will not impair structural integrity or material performance. After use, loosely coiling the hose into large‑diameter loops conserves space and avoids damage caused by random placement, such as pulling, trampling and sharp bending. This represents a reasonable storage practice for routine maintenance.
Strict rules govern coiling operations: keep loops loose; avoid tension and heavy compression. Tight coiling, force‑strained winding and heavy multi‑layer stacking are prohibited. Some users tighten coils excessively to save space. Under tension, every corrugated section bears persistent compressive and tensile stress and cannot return to its relaxed state.
Short ‑ term tight coiling reduces internal cross‑sectional area and lowers flow capacity for ventilation, material transfer and water drainage. Flow blockages and poor drainage may occur. Long ‑ term tight coiling during storage or operation brings persistent material fatigue. The hose loses elasticity and toughness, becomes permanently hardened and distorted, and cannot recover its original shape after uncoiling. Twisted, irregular shapes appear and complicate pipeline installation.
Multi ‑ layer stacked coiling with heavy pressure creates local over‑compression, indentations and creases together with pipe ‑ wall whitening. These damaged positions become failure points and crack prematurely in subsequent service. Extra caution is required in low‑temperature environments. Brittle cold material is more prone to micro‑cracks under coiling ‑ induced compression.
Proper coiling and storage procedures are as follows: coil naturally with sufficient slack to form wide loose loops without tension or heavy stacking. Place coiled hoses on flat, dry surfaces away from heavy objects. Uncoiling restores normal geometry without deformation or harm. In short, loose gentle coiling is a sound storage solution. Tight compressed fixed coiling counts as improper usage; it impairs performance and reduces service life and must be avoided.