Spiral wraps are used to protect wires and hoses from abrasion. It is easy to install and provides a good fit around the hose or wire, and works well in a variety of environments.
Spiral hoses are able to handle higher pressures and don’t experience the same drop off as braided ones. They can also withstand high impulses and perform in freezing temperatures, making them an excellent choice for snow plows and other winter equipment.
How to prolong the life of steel wire-wound hose assemblies
The type of hose and the way it is used can affect the service life of an assembly. Changing the oil frequently and maintaining a clean environment are important steps in prolonging the life of the hose. Also, ensuring that all parts of the hose are compatible with each other is crucial.
Corrosion of metal hoses can occur in several different ways, depending on the type of metal and the environmental conditions. All of these factors can lead to premature failure. The correct hose alloy can help to avoid these problems.
Spiral hydraulics hoses tend to be more rigid than braided hoses and can handle greater pressures. This makes them a good choice for applications that require high impulse or abrasion. They are also less susceptible to corrosion than other types.
For example, SAE 100R12 four-wire spiral hydraulic hose has a maximum pressure of 6,500 psi and is ideal for heavy equipment and earthmoving machinery. Its rubber cover resists abrasion and chemical attacks, and it is easy to clean. It is resistant to freezing temperatures and is therefore ideal for snowplows and tractor. It has an internal configuration with a “backbone” of wire helix to prevent kinking. This also supports full vacuum service.
The reason for the fracture in the inner steel wire layer
Spiral wire hoses are designed for high-pressure applications such as oil and water-based hydraulic systems. They can operate in temperatures from -40 to +302degF and are built to handle pressures up to 6,500psi. They also offer excellent impulse life and exceptional abrasion resistance. They are ideal for heavy equipment and vehicles such as snow plows, tractors and other heavy machinery.
There are several reasons why metal hose assemblies may fail. These include: mis-application – using a hose for an application that it is not designed for; over-application – exceeding the design pressure limits; and environmental conditions – corrosion attack and temperature exposure. The hose alloy should also be matched with the chemical media in order to ensure compatibility.
Pressure rupture is another common cause of failure. This is usually caused by constant or pulsating pressures that exceed the alloy fatigue limit. Stress cracks on the oxide film surface can lead to corrosion. Another cause of corrosion could be turbulent flow of abrasive chemical over the alloy surface. This type of corrosion, called erosion-corrosion, can be reduced either by reducing fluid velocity or by lining the hose with a protective lining.
The main raw materials used to manufacture steel wire wound hose assemblies
PTFE (polytetrafluoroethylene): an extruded polymer that is highly durable, flexible and corrosion resistant. It comes in a wide range of thicknesses, diameters and colors. It is also used as a sealant. PTFE has a high chemical and heat resistance, and is resistant to oils, acids, and bases. It is also very easy to work with, and can be welded by fusion welding.
ECTFE (ethyl chloride ethylene fluoride): an extruded polymer similar to PTFE but with higher thermal and electrical properties. It is very strong and is often used in applications with corrosive chemicals. It is available in different diameters, thicknesses and colors.
sleeve: a protective cover slipped over and affixed to the hose, protecting it from severe external environmental conditions such as hot materials or traffic. it is a good idea to choose an anti-static product for use in hoses that will be subjected to static charges.
