The service life of Plastic Reinforced Pu Hose is not fixed. It mainly depends on working conditions, conveyed media, ambient environment and installation‑operation modes. It outperforms ordinary PVC and rubber hoses in durability and belongs to long‑life industrial hoses. Under ideal standard conditions including indoor enclosed environment, normal temperature and pressure, non‑corrosive media such as clean air and clean water, regular installation without repeated bending and overloaded negative‑pressure suction, its service life can reach 5‑8 years. Under such circumstances, corrosion, violent friction and environmental aging are negligible. Material performance remains stable with only slight natural aging and low loss rate.
Under most common industrial conditions such as dust removal, wood‑chip delivery, grain suction and ordinary oil‑water conveyance, either indoors or under simple rain‑proof outdoor shelter with normal temperature, regular negative pressure, continuous operation and minor material friction loss, Plastic Reinforced Pu Hose normally serves 3‑5 years. This is the mainstream service cycle of such hoses on the market. It fits regular factory production with high cost‑effectiveness and stable performance without frequent replacement.
Under harsh conditions, its service life drops sharply to 1‑2 years or even shorter. Typical harsh conditions include long‑term outdoor sun exposure, rain‑snow erosion and alternating high‑low temperature. Ultraviolet rays destroy polyurethane molecular structure and cause tube‑wall yellowing, hardening and brittle cracking. Long‑term delivery of high‑hardness sand and sharp particles brings fast tube‑wall thinning via continuous heavy scouring and friction. Overloaded negative‑pressure or high‑pressure operation plus frequent bending, extrusion and pulling will deform plastic ribs and crack tube walls. Long‑time immersion in slightly corrosive media and oil also speeds up material deterioration.
Besides, installation and maintenance exert great influence on service life. Excessive stretching, sharp bending and over‑tight fixing will produce stress concentration on tube walls and trigger damage during long‑time operation. Long‑term friction between hoses and sharp equipment and over‑hanging segments without supports cause accelerated local loss. On the contrary, standard installation with reserved expansion space, avoidance of sun and rain exposure, regular clearance of residual materials inside tubes and prohibition of over‑loaded operation can extend service life by 1‑2 years. In general, Plastic Reinforced Pu Hose boasts outstanding durability. With extreme‑condition avoidance and basic maintenance, it can operate steadily for a long time and cut equipment maintenance and pipe‑replacement costs for industrial production.