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Use and storage of high pressure rubber hoses

As the hose varieties are complex, diverse structure, combined with the use of different conditions, so the length of life of the hose, not only depends on the quality of good or bad, but also decided to correct use of maintenance. So even if the product has a very high quality, if not properly used and maintained, will seriously affect the use of quality and life, and even should not have serious accidents, the loss of property. The following points are provided with the following precautions:
1, hose and hose assembly can only be used to transport the design of the material, otherwise it will reduce the service life or failure.
2, the correct use of the length of the hose, the length of the hose under high pressure changes (-4% - +2%) and the mechanical movement caused by the length of change.
3, hose and hose assembly should not be used in the pressure beyond the design work pressure (including the impact of pressure).
4, hose and hose assembly of the media temperature under normal circumstances, should not exceed -40 ℃ - +120 ℃, otherwise it will reduce the service life.
5, hose and hose assembly should not be less than the minimum bending radius of the hose to avoid bending or bending near the pipe joints, otherwise it will hinder the transmission of hydraulic transmission and damage to the hose assembly.
6, hose and hose assembly, should not be used in the reverse state.
7, hose and hose assembly should be handled carefully, should not be dragged on sharp and rough surface, should not bend and flatten.
8, hose and hose assembly should be kept clean, the internal should be washed (especially the acid tubing, spray tube, mortar). To prevent foreign objects into the lumen, hinder the delivery of fluid, damage to equipment.
9, more than the service period or storage period of the hose and hose assembly to be identified after the experiment can continue to use.
Transport and storage
1. hose transportation
Hose in the loading and unloading process, should note the following:
Hose in the loading and unloading process, to do light loading and unloading.
Hose to be classified volumes (articles) neatly shipped, to avoid excessive bending of the pipe body, and should not be stacked on the hose other heavy objects.
It is strictly forbidden to mix the hose with acid, alkali, oil and organic solvents, flammable and explosive materials; the pipe body should not be in direct contact with the goods with sharp edges.
For pipes that need to be transported straight, when the length exceeds the load compartment, the extra long part of the hose should be supported by the bracket to prevent the hose from being damaged on the ground.
If the hose is to be parked in the open space (or workshop pier) for some reason, the site must be flat, the hose should be flat and flat, and do not cover the weight, and the hose can not come into contact with the heat source.
When handling the hose, it should not be dragged, heavy hose should be used lifting equipment or special equipment handling, and to prevent the hose from accidental damage.
2. Hose storage
(1) Store the hose in the warehouse, should be kept clean, ventilated, the relative temperature below 80%, the temperature inside the warehouse should be maintained at -15 ~ +40 ° C between, and to avoid direct sunlight and rain and snow dip Leaching
(2) When the hose is stored, it should be placed according to the different specifications, do not mix and stack, and sign the card to be accessed.
(3) hose as much as possible in the relaxed state of storage, the general diameter of 76mm below the hose, coil can be stored (but the disk diameter should not be less than 15 times the diameter of the hose)
(4) in order to prevent the tube when the tube pressure deformation, stacking should not be too high, the general stack height should not exceed 1.5m; and require the hose during storage often "down stack", generally quarterly not less than once The
(5) When the hose is stored, it should not be in contact with acids, alkalis, oils and organic solvents or other corrosive liquids and gases;
(6) Hose During storage, heavy objects are forbidden on the pipe and are prevented from being squeezed and damaged.
(7) during the storage of the hose, generally should not be more than two years, and should be the first to use the first storage, to prevent the storage for too long and affect the quality of the hose.
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