The Hydraulic Hose Assembly With Fitting Is Designed For Extreme Pressures
Any hydraulic hose assembly with fitting can be used in a wide variety of hydraulic systems. Hoses are, by definition, usually flexible, are sometimes reinforced, and are available in a wide range of materials. A hydraulic hose assembly with fitting is most suitable placed at the point where lines need to flex or bend.
A hydraulic hose consists of an inner tube, reinforcement layers, and a cover layer. The inner tube has to be compatible with the fluid that passes through it - the materials used for this application are thus generally thermoplastic compounds, Teflon or synthetic rubber. The layers that are wrapped around the tube help the hose withstand the pressure exerted outward by the rushing fluid. They are usually composed of wire, cotton or synthetic fibers. The cover protects the hose from external impact. Temperature, UV light, salt water and chemicals can all have a negative impact on the strength and lifetime of a hose.
Static electricity is generated when certain fluids pass through the hose, and the charge can produce sparks. KY Technologies manufactures hoses with high conductivity that will drain the charge. Another danger is having the hose exposed to sharp edges, hot objects, or substances that are otherwise incompatible with it. Other common causes of hose failure are high tensile forces or twisting. Hose are only devised for specific applications, so keep that in mind if you choose to depart from the recommended operational instructions.
The hose fitting connection is one of the most frequent causes for failures. You should choose hose-fitting nipples and hose sockets from the same manufacturer, as they’ll be in the best position to offer advice on the recommended assembly procedure and the tools you’re going to require. You should be religious about following this assembly procedure and, once you’ve completed it, check that the crimps comply with the specifications.
If you’ve selected the proper hose and coupling, you should obtain a safe hydraulic system, one that will work fine even when end connections have to deal with high vibration and plenty of motion. Note that this will not make your hose ‘safe’ from issues of fluid compatibility and working pressure. The hydraulic hose may be very compatible with a fluid, but this is not always necessarily true for couplings. Couplings are affected by fluids in different ways to plastics, and as such chemical resistance is a very important determinant of the compatibility of coupling materials. Note also that some fittings cannot seal well when high pressure is applied - o-ring fittings or solid port connections work best at higher pressures.
When components of hydraulic equipment are connected with rigid tubing, this tubing will transmit vibrations through all the assembly. Hoses are more flexible, and are thus capable of dampening the vibration before it reaches the assembly. Your average hydraulic hose assembly is also much lighter these days, and can offer improved bend radii without becoming more susceptible to vibration or movement. A hydraulic hose assembly with fitting can be spiral wire-wound to sustain high frequency surges for high pressure systems.
Since hoses can change in length at high pressures, you should provide space for expansion or contraction. Hoses should not be twisted either, since the output pressure of your hose will be weakened if it is installed in a twisted position. The pressure in a twisted hose can also loosen the fitting connections. You should also avoid excessive hose length, and prevent too much friction or direct contact between the hose and surrounding objects. Finally, remember that your hydraulic hose assembly with fitting needs to be suitable for both external ambient temperature and the temperature of the internal fluid, so take care when making your choice – if chosen correctly, your hose could last you a lifetime.
