Sep 28 2010

What factors go into selecting a high pressure industrial hose?

Category: Industrial

Answer:

There are several critical factors to consider when purchasing an industrial high pressure hose.

  • Maximum Working Pressure – Determine the maximum operating pressure to which the hose will be subjected to. It is established at 25% of the Nominal Design Burst Pressure.
  • Maximum Proof Pressure – Maximum test pressure to which the hose should be subject to is another critical high pressure hose selection factor. It is established at 150% of the Maximum Working Pressure with the hose installed straight.
  • Nominal Design Burst Pressure – Burst pressure is the pressure at which the hose can be expected to rupture, based on the minimum annealed ultimate tensile strength of the braid wire and corrugated hose alloys at 70°F and the hose installed straight.
  • Pulsating or Shock Pressures – When pulsating, surge or shock pressures exists, such as occur due to fast closing valves, the peak pressure shall not exceed 50% of the Maximum Working Pressure.
  • Pressure Relative To Unbraided Hose – At Maximum Working Pressure, 1 to 21/2% elastic elongation will occur in unbraided hose assemblies.
  • Pressure Relative To Braided Hose – Whenever appreciable internal pressure is applied to a corrugated metal hose, it will elongate unless restrained.
  • Pressure Relative To Temperature – For operating temperatures in excess of 70°F, the tabulated pressures must be decreased in accordance with a temperature de-rating factor.

In order to determine the type of hose that will suit your needs best, it’s best to contact a professional first.  The professionals at US Hose Corporation can help.


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