EN8564SP is part of the EU hydraulic hose standard system, specifically regulating high-pressure hoses with a four-layer steel wire wound structure. Its core technical indicators include:
Inner tube: Made of oil-resistant synthetic rubber (such as nitrile rubber), it has chemical compatibility with petroleum-based hydraulic oil, water-based media, antifreeze, etc. The food-grade model that meets FDA certification can be used for sanitary transportation.
Reinforcing layer: Four layers of high-strength copper-plated steel wires are spirally wound in alternating directions to form a "cross-bearing" structure, with an anti-pulse performance of over one million times, far exceeding that of ordinary braided tubes.
Outer rubber layer: Wear-resistant and ozone-resistant synthetic rubber (such as chloroprene rubber), with a surface roughness controlled below Ra3.2, reducing frictional damage and adapting to harsh outdoor environments.
1. Adaptability to extreme working conditions
Ultra-high pressure resistance capacity: In the field of construction machinery, when used in the 7250psi high-pressure circuit of the hydraulic arm of an excavator, its pulse life can reach over 600,000 times, which is three times that of traditional 2SN braided tubes.
Anti-wear property: In the transportation of mine tailings, the outer rubber layer adopts a thickened wear-resistant formula, combined with the low friction coefficient of the inner pipe (0.05-0.1), which can reduce the transportation energy consumption by 30%.
2. Breakthroughs in medium compatibility
Multi-chemical resistance: It can transport corrosive media such as 30% concentration sulfuric acid and ethylene glycol-based antifreeze. In the feeding system of chemical reaction vessels, its service life is more than twice as long as that of stainless steel pipes.
Mining machinery: In the 1000-meter-deep gold mine shaft hoisting system, 4SP hoses of DN50 specification are used in combination with stainless steel joints, which can withstand an instantaneous pressure of 800bar and reduce the annual maintenance cost by 40%.
Chemical process: The high-temperature slurry transportation (80℃) in the catalytic cracking unit of a certain oil refinery, using high-temperature resistant 4SP hoses, has been in continuous operation for 5 years without corrosion leakage, far exceeding the original design service life.
EN8564SP is part of the EU hydraulic hose standard system, specifically regulating high-pressure hoses with a four-layer steel wire wound structure. Its core technical indicators include:
Inner tube: Made of oil-resistant synthetic rubber (such as nitrile rubber), it has chemical compatibility with petroleum-based hydraulic oil, water-based media, antifreeze, etc. The food-grade model that meets FDA certification can be used for sanitary transportation.
Reinforcing layer: Four layers of high-strength copper-plated steel wires are spirally wound in alternating directions to form a "cross-bearing" structure, with an anti-pulse performance of over one million times, far exceeding that of ordinary braided tubes.
Outer rubber layer: Wear-resistant and ozone-resistant synthetic rubber (such as chloroprene rubber), with a surface roughness controlled below Ra3.2, reducing frictional damage and adapting to harsh outdoor environments.
1. Adaptability to extreme working conditions
Ultra-high pressure resistance capacity: In the field of construction machinery, when used in the 7250psi high-pressure circuit of the hydraulic arm of an excavator, its pulse life can reach over 600,000 times, which is three times that of traditional 2SN braided tubes.
Anti-wear property: In the transportation of mine tailings, the outer rubber layer adopts a thickened wear-resistant formula, combined with the low friction coefficient of the inner pipe (0.05-0.1), which can reduce the transportation energy consumption by 30%.
2. Breakthroughs in medium compatibility
Multi-chemical resistance: It can transport corrosive media such as 30% concentration sulfuric acid and ethylene glycol-based antifreeze. In the feeding system of chemical reaction vessels, its service life is more than twice as long as that of stainless steel pipes.
Mining machinery: In the 1000-meter-deep gold mine shaft hoisting system, 4SP hoses of DN50 specification are used in combination with stainless steel joints, which can withstand an instantaneous pressure of 800bar and reduce the annual maintenance cost by 40%.
Chemical process: The high-temperature slurry transportation (80℃) in the catalytic cracking unit of a certain oil refinery, using high-temperature resistant 4SP hoses, has been in continuous operation for 5 years without corrosion leakage, far exceeding the original design service life.
