Hose is carefully designed and built to do a specific job safely and economically. Yet, unfortunately, the years of research and development invested in hose construction can be canceled by improper storage, misuse, and other abuse by the hose user, warehouse employees, and other work personnel.
It is important to remember that all hose will fail in time! Hose is a very vulnerable link in most process and transfer applications. It handles valuable and potentially dangerous materials, and hose failures can be expensive in terms of lost product, ruined equipment, spill clean up, and – most important, personal injuries.
Apache recommends careful observation of the following points to improve service, safety and economy from the hose you use.
- Use hose designed and recommended for the service intended.
- Make sure hose is easily identifiable as to the type and use. Where dangerous misuse can occur, use different fittings or end connections.
- Make sure your hose is the correct length for the job intended. Remember to engineer for a possible -4% contraction to +5% elongation at max working pressure on the hose assembly.
- Set up regular hose inspections before each use so that damaged or worn hose assemblies can be replaced.
- Attach hose using proper elbows and nipples, so that its operation (including its own weight and heavy end connections) will not cause it to bend sharply at the coupling. Support hose ends with heavy couplings attached.
- Avoid subjecting hose to damage by vehicles, falling rocks, or other objects. It is easy to install protective covers on hose.
- Check manufacturer’s chemical resistant charts to insure the hose will transfer the chemical before it is put in the hose.
- Store hose in a cool, dry, dark, and clean place.
- Always wear safety clothing, gloves, boots, hard hat, and eye protection when using a hose.
- Test hose every six months or sooner to 1.5 times the working pressure or to industry recommended pressures based on RMA, USCG, OSHA, DOT, API, NPGA, or others.
- Educate all employees on how to inspect a hose before each use to insure it is safe to use along with correct hose use and care. Teach employees to “Error on the side of safety!” When in doubt, remove the hose from service!
- Store hose in a flat coil. Be sure no kinks are left in the coil. Lay it on the floor, a shelf or table. Long lengths are best stored on hose reels.
- Protect hose from the effects of ozone (O3), the active form of oxygen which is more prevalent than most people think. Store away from electrical or ozone producing equipment. Paper, wood and rags are good O3 absorbers.
- Crush or kink hose. Avoid repeated bending which may eventually break the reinforcement of the hose leading to a rupture.
- Substitute hose types. All hoses are not equal. Consult your hose supplier for the correct recommendations.
- Use a hose if any of the reinforcement is exposed through the cover due to cuts, gouges or just prolonged use.
- Exceed the working pressure of the hose for any reason (including pressure spikes).
- Use damaged or worn fittings. Check to see if the coupling is loose or has moved, has worn threads, worn gasket or is corroded. Successful hydro testing will help verify the integrity of the coupled assembly.
- Store hose after use, without rinsing & draining if it carried substances that ultimately deteriorate the hose tube.
- Use a hose outside its recommended temperature limits.
- Pull on a hose by its coupling.
- Kink a hose to stop the flow of product. Kinking can seriously damage the tube and reinforcement.
- Lift a hose by the middle with the ends hanging down. This can kink the hose in the middle (especially in hoses over 3" ID). Use hose lifting saddles to prevent kinking.
- Bend a hose beyond its minimum bend radius.
- Subject a hose to temperatures above its rated temperature recommendations (especially any hose with plastic parts-PVC, etc.)