What To Know Before Selecting a Hose
- Jan 24, 2018 -
An important detail that is helpful when discussing which hose you need for your application is whether your pressure is dynamic or static. Dynamic pressure means your system can have fluctuations, temperature changes, and shocks/pulses to the system. Static pressure is basically the opposite of dynamic pressure, in the fact that the pressure is constant, without pulses or temperature changes.
As an example, if a hydraulic system has a 4,000 psi pressure rating, including spikes, we would insist on using a hydraulic hose rated to 4,000 psi. This has to include the fittings because the weakest point in the hydraulic system sets the pressure rating for the whole thing. If your 4,000 psi hose is attached to a 3,500 psi fitting, your assembly is not 4,000 psi rated. This ensures that the assembly will handle that constant working pressure and is up to the specific requirements of your system. An unsuitable hose assembly poses a great danger to those working around it.
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