Shelf or service life will range from 1 to 20+ years, depending on its composition, application, and environment. For material handling hoses, always rotate to ensure even wear of the hose tube.ĩ) Old age - Hose is not ‘pipe’, it is a flexible component that will degrade over time. Always confirm the manufacturer recommendations based on STAMPED information.Ĩ) Tube or cover not compatible with fluids or environment - Usually results in discoloration, swelling, sponginess, or the breakdown of the hose carcass.

Improperly installed or selected clamps can result in the coupling ejecting from the end of the hose. This is commonly seen on high pressure hoses or vacuum hoses.ħ) Defective hose or improperly installed or selected clamp - Failure from a defective hose will typically occur in the first few hours of service, such as pin holes, blow-outs, or tube and cover separation. Excessive hot or cold temperatures will lead to discoloration, cracking, or hardness - as well the build up of static electricity if hose wire has not been ground properly.Ĥ) Surging or excessive working pressure - Usually a large burst with torn reinforcement, typically along the outside of a bend.ĥ) External damage to hose carcass - Kinks, crushed sections, and cover damage which exposes reinforcement will eventually break down the reinforcement and lead to a hose failure.Ħ) Exceeding the minimum bend radius - Kinking, crushing, or forcing a hose to bend beyond its minimum bend radius (measured from the inside edge of the hose, not the centerline). 1) Mis-application - Perhaps the greatest cause of failure is using a hose, fitting, or clamp in an application that it is not designed for.Ģ) Kinking at or near the fittings - Once the barb of the fitting cuts into the tube of the hose, the product being conveyed can escape into the reinforcement and eventually lead to bubbling or blistering of the cover within several feet of the end.ģ) Temperature Exposure - As temperature increases pressure ratings decrease.

Rubber hose 2 puppet pin