What are the recommended operating pressure limits and temperature range for the EN 856 4SH S High‑Pressure Hydraulic Hose to ensure safe, long-term performance?

The recommended operating limits for the EN 856 4SH S High‑Pressure Hydraulic Hose are: - Working (continuous) pressure: 250 bar to 420 bar, depending on hose diameter. - Normal temperature range: −40°C to +100°C for reliable long‑term performance. - Short‑term/peak temperature capability: up to +125°C for temporary excursions. Operate within the specified working pressure for the selected diameter and keep continuous temperatures inside the −40°C…+100°C band to ensure safe, long-term service; occasional short peaks to +125°C are allowable but should be minimized.

How do I select the correct diameter of EN 856 4SH S High‑Pressure Hydraulic Hose for my system to ensure compatibility with fittings and maintain rated working pressures?

To select the correct diameter of EN 856 4SH S High‑Pressure Hydraulic Hose for your system and ensure compatibility with fittings while maintaining rated working pressures, follow these steps: 1. Determine system working pressure: use the maximum operating pressure of your system (including spikes). Select a hose diameter whose EN 856 4SH S rated working pressure meets or exceeds that value (hose ratings range from 250–420 bar depending on diameter). 2. Match hose bore to flow requirements: choose an internal diameter that delivers required flow with acceptable pressure drop and fluid velocity. Undersized bore increases pressure loss and heat; oversized bore can cause sluggish response. 3. Check fitting compatibility: confirm the chosen hose diameter corresponds to available fittings (thread type, ferrule/socket dimensions). Use fittings specified for EN 856 4SH S applications and the same nominal size to ensure secure crimp or swage connections. 4. Verify reinforcement and safety factor: EN 856 4SH S has four high‑tensile steel wire layers—ensure the hose’s published burst pressure and recommended safety factor (typically 4:1 for hydraulic systems) are acceptable for your application. 5. Consider temperature and environment: ensure the hose diameter and fittings maintain sealing and flexibility across -40°C to +100°C (peaks to +125°C) and that outer cover resistance suits abrasion/weathering exposures. 6. Installation and bend radius: confirm the selected diameter permits required routing without violating the minimum bend radius (excessive bending reduces pressure rating and life). Allow for thermal expansion and avoid twists. 7. Test and validate: after assembly, pressure-test the hose/fitting assembly at recommended test pressure before commissioning. Following these criteria ensures the EN 856 4SH S High‑Pressure Hydraulic Hose you choose is compatible with fittings and sustains the rated working pressures.

Hydraulic hose EN 856 4SH S

All products, Hydraulic rubber hoses/

Additional information

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

A 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 the diameter hose. Operating temperature: od -40°C up to +100°C (momentarily +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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A 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 the diameter hose. Operating temperature: od -40°C up to +100°C (momentarily +125°C).