What is the maximum working pressure range for the EN 856 4SH S hydraulic hose across available diameters?

The maximum working pressure range for the EN 856 4SH S hydraulic hose across available diameters is 250 bar to 420 bar, depending on the hose diameter. The hose features a black oil-resistant synthetic rubber inner layer, four layers of steel wire reinforcement, and a black oil-resistant synthetic rubber outer layer. Operating temperature: -40Â°C to +100Â°C (temporarily up to +125Â°C).

Does the EN 856 4SH S hydraulic hose meet the -40Â°C to +125Â°C temperature range for all service conditions?

No. The EN 856 4SH S hydraulic hose has an operating temperature range of -40Â°C to +100Â°C in normal service; +125Â°C is only permitted temporarily. It therefore does not meet a continuous service range of -40Â°C to +125Â°C for all service conditions.

Can the EN 856 4SH S hydraulic hose be used with fluids other than mineral oils without degrading performance?

EN 856 4SH S hydraulic hose is designed primarily for mineral-oil based hydraulic fluids: its inner layer is specified as black, oil-resistant synthetic rubber and the outer layer likewise. While that rubber formulation gives good compatibility with many petroleum-based oils, compatibility with other fluids (e.g. phosphate ester fireâresistant fluids, waterâglycol, waterâglycolâacetate, synthetic esters, silicone oils, bioâbased hydraulic fluids, aggressive solvents, strong acids/alkalis) cannot be assumed. Using nonâmineral fluids may cause swelling, hardening, softening, loss of tensile/abrasion properties, reduced burst/working pressure, or premature failure, especially outside the specified temperature range (â40 Â°C to +100 Â°C, temporarily +125 Â°C). Chemical compatibility depends on the exact rubber compound formulation and the fluid chemistry. Recommendation: before using EN 856 4SH S hydraulic hose with fluids other than mineral oils, consult the hose manufacturerâs chemical compatibility charts or technical department. If manufacturer data are unavailable, perform compatibility tests (immersion and pressure cycling) with the specific fluid at expected temperature and pressure. For fireâresistant or aggressive fluids, consider hoses specifically certified for those media.

EN 856 4SH S hydraulic hose

All products, Hydraulic rubber hoses/

Additional information

Material	synthetic rubber
Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-40

General-purpose hydraulic hose. Standards: EN 856 4SH. Inner layer: black, oil-resistant synthetic rubber. Reinforcement: four layers of steel wire. Outer layer: black, oil-resistant synthetic rubber. Working pressure: from 250 bar to 420 bar depending on hose diameter. Operating temperature: from -40°C to +100°C (temporarily +125°C).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HW-4SH-19S	Hydraulic hose DIN EN 856 4SH 3/4"	20	420	In stock	Enquiry
HW-4SH-25S	Hydraulic hose DIN EN 856 4SH 1	25	380	In stock	Enquiry
HW-4SH-32S	Hydraulic hose DIN EN 856 4SH 1.1/4"	32	325	In stock	Enquiry
HW-4SH-38S	Hydraulic hose DIN EN 856 4SH 1.1/2"	38	290	In stock	Enquiry
HW-4SH-51S	Hydraulic hose DIN EN 856 4SH 2"	50	250	In stock	Enquiry

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General-purpose hydraulic hose. Standards: EN 856 4SH. Inner layer: black, oil-resistant synthetic rubber. Reinforcement: four layers of steel wire. Outer layer: black, oil-resistant synthetic rubber. Working pressure: from 250 bar to 420 bar depending on hose diameter. Operating temperature: from -40°C to +100°C (temporarily +125°C).