What is High Pressure Hose?

Jul 01, 2019

High Pressure Hose also called high pressure rubber hose. It can be divided into air compressor hose, sandblast hose, spray hose(Garden & Agricultural hose). It is used in mine hydraulic support, engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and mechanical and automated hydraulic systems in various industrial sectors.

According to the manufacturing process, the high-pressure rubber hose is mainly divided into a high-pressure steel wire braided hose and a high-pressure steel wire wound hose.

Wire wound hose
The high-pressure steel wire wound hose structure is mainly composed of an inner rubber layer, a middle rubber layer, four or more layers of steel wire reinforcing layer and outer rubber layer which are alternately wound.
The inner rubber layer has the function of subjecting the conveying medium to pressure and protecting the steel wire from erosion. The outer rubber layer protects the steel wire from damage, and the steel wire layer is a reinforcing material for the skeleton material.
High-pressure steel wire wound tubing (high-pressure tubing) Uses: High-pressure steel wire reinforced hydraulic tubing is mainly used for mine hydraulic support and oilfield development, suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various Machine tools and mechanical and automated hydraulic systems in various industrial sectors deliver water-based liquids (such as emulsions) with a certain pressure (higher pressure) and temperature. The highest working pressure can reach 70-120Mpa.
High-pressure steel wire wound tubing (high pressure tubing) working temperature: -40℃—120℃
Product specifications range: DN6mm ~ DN305mm.

Type:
4SP type – four-layer steel wire wrapped medium pressure hose.
4SH type – four-layer steel wire wound high pressure hose.
R12 type – four layers of steel wire wound high temperature medium pressure oil pipe under severe conditions.
R13 type – multi-layer steel wire wound high temperature and high pressure oil pipe under severe conditions.
R15 type – multi-layer steel wire wound high temperature ultra high pressure oil pipe under severe conditions.

Steel wire braided hose
The high-pressure steel wire braided hose structure is mainly composed of a liquid-resistant synthetic rubber inner rubber layer, a middle rubber layer, an I, II, and III steel wire braid layer, and a weather resistant synthetic rubber outer rubber layer.
However, according to the design principle of the high-pressure hose, the III-layer braided hose does not have any effect when the hose is under pressure, wastes the material in vain, increases the weight of the hose itself, and reduces the flexibility of the hose. Therefore, there is no such standard for hoses in national standards. Older engineers in some companies still use the old standards of the past, so some people still choose this model when designing.
High-pressure steel wire braided hose Use: High-pressure steel wire reinforced hydraulic oil pipe is mainly used for mine hydraulic support and oilfield development, suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools and various industries. The department mechanized and automated hydraulic system delivers petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquid (such as emulsion, oil-water emulsion, water) with a certain pressure and temperature. Liquid drive.
High-pressure steel wire braided hose working temperature: oil -40 ° C ~ 100 ° C, air -30 ° C ~ 50 ° C, water emulsion + 80 ° C below.

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