DIN EN853 2SN Hydraulic Hoses: Specifications, Dimensions, and Applications
DIN EN853 2SN is a two-wire-braid hydraulic hose type used to convey hydraulic fluids in mobile and industrial systems. It is typically selected when an application needs a compact, flexible hose with a higher pressure capacity than a comparable single-wire-braid hose. The exact working pressure depends on nominal bore size, while dimensions, temperature limits, fluid compatibility, and bend requirements must be checked against the supplier’s product data. This guide explains the construction, representative dimensions, applications, and purchasing checks that help determine whether 2SN is appropriate for your system.
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Who This Guide Is For
This guide is for hydraulic equipment manufacturers, maintenance teams, distributors, and sourcing professionals evaluating hose for new systems or replacement parts. It is especially useful when a specification calls for EN 853 2SN or when a buyer needs to compare hose size and pressure capacity before requesting a quotation. Final selection should use the system’s operating conditions and the manufacturer’s current technical data, not the designation alone.
What DIN EN853 2SN Means
Basic Construction and Function
EN 853 2SN describes a hydraulic hose construction with an oil-resistant synthetic-rubber inner tube, two layers of high-tensile steel-wire braid, and a protective synthetic-rubber cover. The inner tube carries the fluid, the reinforcement contains pressure, and the cover helps protect against external wear and environmental exposure. The two-braid structure provides a balance of flexibility and pressure capability for many hydraulic circuits.
The designation is a product-type specification, not by itself proof that a particular hose, assembly, or supplier has been independently certified. Buyers should request the applicable product datasheet and documentation for the exact item being quoted. Compatibility also depends on the fluid, temperature, pressure cycling, and installation conditions.
Typical Operating Considerations
Many 2SN hose products are specified for hydraulic oil service over a temperature range that may extend from approximately -40°C to +100°C, but limits can vary by product and fluid. Some fluids or operating conditions require a lower maximum temperature. Always confirm the stated range for the hose under consideration and check whether the temperature refers to the fluid, ambient conditions, or both.
Representative Specifications and Dimensions
The table below gives representative nominal bore sizes and commonly listed working-pressure ratings for the EN 853 2SN size series. It is intended for preliminary comparison, not as a substitute for a manufacturer’s dimensioned datasheet. Outside diameter and other dimensions can differ between products, so confirm them before designing fittings, clamps, or routing.
| Nominal Size | Approximate Inside Diameter | Representative Working Pressure | Typical Selection Note |
|---|---|---|---|
| DN 6 (1/4 in) | 6.4 mm | 400 bar | Compact circuits; verify flow and pressure loss |
| DN 10 (3/8 in) | 9.5 mm | 330 bar | Common intermediate bore for equipment lines |
| DN 25 (1 in) | 25.4 mm | 165 bar | Larger flow capacity; check routing space |
These examples show why pressure rating must be matched to hose size: a larger bore does not automatically mean a higher pressure rating. The hose’s working pressure is not the same as its burst pressure, and a buyer should not treat burst pressure as an allowable operating value. Select for the maximum system pressure, including foreseeable pressure peaks, using the applicable product documentation and system design requirements.
Applications and Size Matching
2SN hoses are commonly considered for hydraulic lines on construction and agricultural machinery, material-handling equipment, machine tools, and general industrial hydraulic systems. Their suitability depends on the pressure and fluid requirements as well as exposure to vibration, abrasion, heat, and movement. A hose that matches the pressure rating may still be unsuitable if its cover, fluid compatibility, or bend characteristics do not fit the installation.
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Match Bore to Flow and Pressure
Start with the required flow rate and the system designer’s specified hose bore. An undersized hose can increase fluid velocity and pressure loss, while an oversized hose may add cost and create packaging challenges. Do not choose a bore solely by copying the outside dimensions of an old hose; identify its nominal size and confirm the system’s flow and connection requirements.
Check Routing, Fluid, and Environment
Measure the route and assess the minimum bend radius stated by the hose manufacturer. Avoid twisting the hose during installation, and allow for movement where equipment articulates or vibrates. Confirm compatibility with the hydraulic fluid and consider whether the cover needs additional protection from abrasion, weather, heat, or nearby components.
A Practical Selection Framework
- Record operating conditions: Note normal and peak pressure, flow rate, fluid type, and operating temperature.
- Confirm size and connections: Specify nominal bore, hose length, end fitting type, thread or connection standard, and orientation where relevant.
- Review installation conditions: Check routing, bend radius, movement, abrasion exposure, and available space.
- Compare documentation: Request the datasheet for the exact hose and confirm its stated dimensions, pressure rating, and service limits.
- Validate the complete assembly: Ensure that hose, fittings, assembly method, and application requirements are compatible.
For a replacement, also inspect the failed hose and surrounding installation. Leakage, cover damage, or premature wear can point to a routing, pressure, contamination, or fitting issue rather than simply a hose-size problem. Share clear photographs and measurements with your supplier when the original specification is unavailable.
Pricing, MOQ, and Lead-Time Factors
Pricing for 2SN hose varies with bore, requested length, order quantity, cover options, packaging, and whether the buyer needs hose only or completed assemblies. Fittings, crimping requirements, testing or inspection requests, and export packaging can also affect a quotation. Minimum order quantities and lead times are supplier- and order-specific, so they should be confirmed rather than assumed.
For an accurate quotation, provide the standard and size, quantity, delivery destination, required documentation, and any fitting or assembly details. If your project has a required delivery date, ask the supplier to confirm production availability and shipping arrangements in writing. Comparing quotations on identical specifications helps avoid a low initial price that excludes necessary fittings or documentation.
Supplier Evaluation Checklist
- Can the supplier provide a current datasheet for the exact size and product construction?
- Are working pressure, dimensions, temperature range, and fluid limitations clearly stated?
- Can the supplier confirm fitting compatibility and assembly requirements for your application?
- Are order quantity, packaging, lead time, and requested documents confirmed before purchase?
- Is there a practical process for resolving specification questions before production or shipment?
As a rubber-products manufacturer and supplier, Hengshui Xinchi Hose Manufacturing Co., Ltd. can discuss DIN EN853 2SN hose requirements with B2B buyers and help clarify the information needed for product selection and quotation. Share your target size, pressure, fluid, temperature, quantity, and delivery requirements so the proposed product can be reviewed against your application. Product availability, customization, documentation, and lead time should be confirmed for each order.
Key Takeaways and Next Steps
DIN EN853 2SN is a two-steel-wire-braid hydraulic hose type used in a range of mobile and industrial systems. Its pressure rating changes with nominal bore, and representative examples include 400 bar for DN 6, 330 bar for DN 10, and 165 bar for DN 25. These figures are useful for initial screening, but the exact hose datasheet and full system requirements must guide final selection.
To move forward, document your operating pressure, flow, fluid, temperature, hose size, fittings, route, and order quantity. Then request a product datasheet and a quotation based on those details, checking dimensions and application limits before purchase. If you are sourcing DIN EN853 2SN hose for a project or replacement program, Hengshui Xinchi Hose Manufacturing Co., Ltd. welcomes your inquiry for specification review and B2B supply discussions.