DIN EN 857 2SC Hydraulic Hoses: Specifications, Pressure Ratings, Dimensions, and Applications

DIN EN 857 2SC is a compact hydraulic hose type designed for high-pressure fluid transfer where installation space or routing flexibility is important. It has a synthetic-rubber inner tube, two braided steel-wire reinforcement layers, and a protective outer cover. Common sizes range from DN 6 to DN 25, with typical working-pressure ratings of approximately 175–400 bar, depending on hose size and manufacturer. Use the applicable product datasheet—not the hose designation alone—to confirm pressure, dimensions, fluid compatibility, and temperature limits before ordering.

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Who This Guide Is For

This guide is for hydraulic equipment manufacturers, distributors, maintenance teams, and procurement professionals comparing hose specifications or preparing an RFQ. It explains what the 2SC designation means, how to read typical pressure and dimension data, and what to check when matching a hose to an application. The figures below are common reference values, not a substitute for the specification of the hose being purchased. Product designs and published dimensions may vary, so confirm them with your supplier.

What DIN EN 857 2SC Means

Construction and Function

In the designation, EN 857 identifies the European hose standard, while 2SC describes a compact hose construction with two steel-wire braid reinforcement layers. The inner tube is generally made from oil-resistant synthetic rubber, and the outer cover is selected to resist the operating environment, such as abrasion or weather exposure. Exact rubber compounds and cover properties depend on the manufacturer’s product specification. The reinforcement helps the assembly handle hydraulic pressure, but the complete hose-and-fitting assembly must be selected and installed as a system.

The compact profile can help when a machine has restricted routing space or needs a tighter bend than a larger, less flexible hose can accommodate. Typical uses include mobile hydraulic equipment, industrial machinery, and other hydraulic circuits where the required pressure and fluid are compatible with the selected hose. Suitability depends on the actual operating conditions, including pressure peaks, temperature, movement, and exposure to external damage. A hose that fits physically is not necessarily suitable for the circuit.

Typical Specifications and Pressure Ratings

Reference Working-Pressure Table

The table gives commonly published reference values for EN 857 2SC sizes. DN is the nominal bore in millimetres, and working pressure is the maximum specified operating pressure for the relevant hose size under its defined conditions. These figures should be checked against the exact manufacturer datasheet and applicable standard edition before design approval or purchase. Do not treat them as pressure ratings for a finished assembly unless the hose, fittings, and crimping specification are confirmed together.

Pressure ratings typically decrease as hose bore increases, while minimum bend radius generally increases. The table is a selection aid rather than a guarantee: manufacturers may publish different values, and the required rating can also be affected by temperature, fluid, impulse duty, and assembly details. Check whether the application includes pressure surges or frequent flexing, and provide this information when requesting a quotation. Never select a hose by working pressure alone.

Dimensions and Installation Space

DN refers to nominal internal size, not the hose’s outside diameter. Actual inner diameter, outside diameter, wall construction, and dimensional tolerances should be taken from the supplier’s drawing or datasheet for the specific product. These dimensions matter when checking clamp clearance, routing paths, protective sleeves, and compatibility with fittings. If a hose must pass through a confined area, request the outside diameter and minimum bend radius before finalizing the equipment layout.

Materials, Fluids, and Operating Conditions

Hydraulic hoses are commonly specified for mineral-oil-based fluids, but fluid compatibility should never be assumed from the 2SC designation alone. Synthetic fluids, water-containing fluids, additives, or unusual operating temperatures may require a different tube compound or hose type. Confirm compatibility with the hose manufacturer using the fluid’s exact name and concentration where relevant. Also check the product’s specified operating temperature range and whether that range changes with the fluid in use.

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The outer cover faces different demands from the inner tube. Abrasion, oil contamination, sunlight, ozone, moisture, and contact with hot or moving components can all affect service life. Where exposure is significant, describe the environment during sourcing and ask which cover option is suitable. Guards or sleeves may be appropriate in some layouts, but they should not conceal damage or prevent routine inspection.

How to Select the Right 2SC Hose

Buyer Selection Framework

1. Define the circuit: Record the hydraulic fluid, normal and peak pressure, operating temperature, and whether pressure cycles are frequent.
2. Confirm the bore: Match the nominal size to flow requirements and connection sizes; avoid choosing a bore solely because it fits the available space.
3. Check routing: Compare the installation path with the specified minimum bend radius and outside diameter. Avoid twisting the hose or forcing bends near the fittings.
4. Specify the assembly: Identify fitting type, thread or flange details, orientation, finished length, and any protective covering required.
5. Verify documentation: Request the product datasheet and confirm the pressure rating, dimensions, temperature range, fluid compatibility, and assembly requirements.

One common mistake is confusing working pressure with burst pressure. Burst pressure is not a permitted operating target; the hose must be operated within the manufacturer’s specified working-pressure limit and applicable safety requirements. Another mistake is ignoring pressure spikes because the average system pressure appears acceptable. Share the maximum expected pressure and duty cycle with the supplier, especially for equipment with rapid valve switching or repeated load changes.

Applications and Fit

EN 857 2SC can be considered for hydraulic lines on mobile machinery, material-handling equipment, and industrial systems where a compact, two-wire-braid hose is appropriate. The choice should be based on circuit requirements rather than a broad application label. For example, an exposed hose near moving components may need additional abrasion protection, while a line with severe heat exposure requires careful review of the hose’s temperature limits. The final assembly must also suit the fittings, routing, and maintenance plan.

2SC is not automatically the right option for every high-pressure circuit. If pressure, temperature, fluid, impulse duty, or external exposure exceeds the listed product limits, ask about a more suitable hose construction. Likewise, choosing a smaller hose to save space can create a flow restriction if the bore is inadequate. Where the application is uncertain, provide the full operating conditions rather than requesting a hose by standard number only.

Pricing, MOQ, and Lead-Time Considerations

Hose pricing can depend on nominal size, requested length, reinforcement and cover specification, fittings, protective options, order quantity, and packaging. Minimum order quantities and production or delivery lead times vary by product configuration and supplier, so they should be confirmed for each RFQ. For a useful quotation, provide the required standard, sizes, quantity, cut lengths or assembly details, destination, and target delivery schedule. If you are comparing offers, check that each quotation covers the same hose construction and assembly scope.

Supplier Evaluation Checklist

• Can the supplier provide a datasheet identifying the hose size, construction, pressure rating, and dimensions?
• Can they confirm the fitting and assembly requirements for your equipment?
• Are fluid compatibility, temperature limits, and environmental requirements addressed?
• Are MOQ, lead time, packaging, and available product documentation stated clearly?
• Can they explain which values are standard references and which apply specifically to the quoted product?

Hengshui Xinchi Hose Manufacturing Co., Ltd. supplies hydraulic rubber hose products for business buyers. When you contact us about DIN EN 857 2SC, include your size range, pressure requirements, fluid, temperature, quantity, and fitting details so we can review the specification and discuss the appropriate product information. We can also clarify which dimensions and documents are available for the requested configuration. Final suitability should be confirmed against the product data and your equipment requirements.

Key Takeaways and Next Steps

• DIN EN 857 2SC is a compact hydraulic hose construction reinforced with two steel-wire braid layers.
• Common reference working pressures range from about 175 bar for DN 25 to 400 bar for smaller sizes, but the exact product datasheet governs.
• Confirm nominal bore, outside diameter, minimum bend radius, fluid compatibility, temperature limits, fittings, and operating pressure before ordering.
• For an accurate B2B quotation, send the supplier your complete operating conditions and assembly requirements, not just the hose designation.

In short, DIN EN 857 2SC can be a suitable choice when a compact, two-wire-braid hydraulic hose matches the circuit’s pressure, size, fluid, temperature, and routing needs. The next step is to compare your application data with the specific supplier datasheet and confirm the finished assembly details. Contact Hengshui Xinchi Hose Manufacturing Co., Ltd. with your requirements to discuss product options and request a quotation.