In the field of industrial hydraulic systems, high-pressure steel wire braided hoses are crucial components, and 4SP and 4SH hoses, as common types, have distinct characteristics that directly affect their application scenarios. Understanding their differences is essential for enterprises to select suitable hydraulic components.
The most prominent difference lies in pressure-bearing capacity. 4SH hoses boast slightly higher pressure resistance than 4SP ones. This is mainly due to the smaller outer diameter of the steel wire used in 4SH hoses. Under the same working conditions, the smaller-diameter steel wire enables the hose to withstand greater pressure, making it more reliable in high-pressure environments. Although 4SP hoses also have strong pressure-bearing performance, they are slightly inferior to 4SH in extreme pressure scenarios.
In terms of application scope, both are widely used in hydraulic systems requiring high pressure and high flow, such as mine hydraulic supports, oilfield development, construction engineering, lifting and transportation, metallurgical forging, and ship machinery. However, due to its superior pressure resistance, 4SH hoses are more preferred in scenarios with higher pressure demands, like heavy-duty injection molding machines and large-scale mining equipment, while 4SP hoses are sufficient for general high-pressure working conditions.
Regarding execution standards, both 4SP and 4SH hoses are four-layer steel wire braided hoses, but their specific standards vary. Factors such as product specifications, manufacturers, and application fields can lead to differences in standards. Therefore, it is necessary to consult product documents or manufacturers for detailed standard information before purchase.
In terms of material and structure, both consist of inner and outer rubber layers and a skeleton layer. The skeleton layer is usually made of steel wire, and the inner and outer rubber layers may adopt materials like natural rubber, styrene-butadiene rubber, chloroprene rubber, or nitrile rubber, depending on performance requirements such as oil resistance, acid and alkali resistance, and high-temperature resistance. The steel wire braided structure endows both with excellent pressure resistance, wear resistance, and corrosion resistance.
The working temperature range of both hoses is relatively wide, but it depends on the material and application. Generally, for oil media, the working temperature can reach -40℃ to +100℃; for water emulsions and other media, it is usually below +80℃.
In conclusion, enterprises should comprehensively consider factors such as pressure requirements, application scenarios, media characteristics, and temperature conditions when selecting between 4SP and 4SH hoses to ensure the stable operation of hydraulic systems.
Post time: Sep-25-2025