If High-Pressure Water Jet Hoses exhibit any defects including bulges, cracks, surface rupture or local swelling, they must be immediately removed from service and scrapped, regardless of defect size or leakage status. Continuous operation, repair reuse or reduced-pressure operation of damaged hoses are strictly prohibited. This is a fundamental safety protocol for high-pressure water jet operations and a mandatory requirement for all users of our products. High-pressure water jet systems operate at extreme pressures, ranging from tens to hundreds of megapascals in standard applications and even higher in ultra-high-pressure scenarios. The structural integrity of the hose is the primary guarantee of operational safety.
Hose bulges indicate severe internal structural damage rather than superficial outer-layer wear. High-pressure water jet hoses adopt a multi-layer composite structure, consisting of a water-resistant inner rubber tube, multi-layer steel wire winding reinforcements, intermediate adhesive layers and a wear-resistant outer protective rubber cover. A bulge forms when internal steel wire reinforcements break or loosen, or when interlayer adhesive failure causes delamination, meaning the hose's pressure-bearing structure has completely failed. During operation, continuous high-pressure water impact stresses the weakened area, enlarging the bulge and eventually causing catastrophic tube burst. High-velocity water jets can penetrate clothing and lacerate skin, resulting in serious bodily injury.
Surface defects such as dry cracks, fine fissures and outer skin rupture are equally hazardous. The outer rubber layer functions to shield internal steel wire reinforcements from air, moisture and mechanical abrasion. Outer-layer cracks allow moisture and contaminants to penetrate the hose interior, triggering steel wire rusting and fracture. These cracks progressively extend to the inner rubber tube, causing gradual leakage and pressure loss. Minor initial seepage quickly escalates into extensive cracking and sudden burst, reducing the efficiency of cleaning, derusting and dredging operations while causing unstable system pressure and equipment overload damage.
Many users mistakenly assume minor cracks or small bulges are negligible and attempt to repair hoses with adhesive, tape or section trimming, which creates extreme safety risks. High-pressure water penetrates all microscopic gaps, and makeshift repairs cannot withstand cyclic high-pressure pulsing, leading to recurrent failure and burst in a short period. Repaired sections bear uneven stress and present higher failure risks than original intact tubing. Additionally, continued use of damaged hoses abrades equipment connectors, causing joint leakage and permanent damage, and increasing overall equipment maintenance costs.
Inspect the condition of High-Pressure Water Jet Hoses prior to daily operation. Immediately replace any hose showing bulges, cracks, material hardening, leakage or delamination. To minimize damage risks, avoid violent dragging, heavy rolling and excessive bending during operation. Store hoses in a flat, dry and shaded environment to reduce structural wear fundamentally and ensure consistent operational safety and equipment stability.