DIN EN 853 2SN is a high-pressure hydraulic hose type with a synthetic-rubber inner tube, two braided steel-wire reinforcement layers, and a protective outer cover. It is commonly selected for hydraulic circuits where pressure, flexibility, and compatibility with the conveyed fluid must be considered together. For example, typical reference ratings include a working pressure of 250 bar for a 16 mm nominal bore and a minimum bend radius of 200 mm; ratings vary by hose size and product. Use the manufacturer’s current datasheet to confirm the exact specification before ordering or installation.
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This guide is for equipment manufacturers, distributors, maintenance teams, and procurement professionals evaluating DIN EN 853 2SN hose. It is intended to help buyers compare specifications and prepare a clear request for quotation. It does not replace the equipment manufacturer’s requirements, a risk assessment, or the hose supplier’s product-specific documentation. Where a machine specifies a particular hose assembly, follow that requirement rather than substituting based on a similar-looking designation.
In a typical 2SN hose, the inner tube is made from oil-resistant synthetic rubber, and two braided layers of high-tensile steel wire provide pressure reinforcement. A synthetic-rubber cover protects the reinforcement from external exposure, including abrasion and weathering, within the limits stated for the specific product. The hose is designed to convey compatible hydraulic fluids in suitable hydraulic systems. The designation alone does not confirm chemical compatibility, service life, or suitability for every environment.
The two-wire construction is a useful starting point for identifying the hose, but it is not a complete purchasing specification. The nominal bore, operating pressure, temperature, bend radius, cover requirements, and end connections all affect whether a hose is appropriate for a given assembly. Buyers should also distinguish the hose itself from a finished hose assembly, which includes end fittings and may have separate assembly and testing requirements. Ask the supplier to clarify which item is included in the quotation.
The table below provides illustrative reference values commonly listed for EN 853 2SN hose sizes. These are not a substitute for the specific manufacturer’s datasheet: values and size availability can vary by product, standard edition, and construction. Confirm working pressure and minimum bend radius for the exact hose offered before approving a design or purchase.
| Nominal bore | Typical inch size | Illustrative working pressure | Illustrative minimum bend radius |
|---|---|---|---|
| 6 mm | 1/4 in | 400 bar | 100 mm |
| 10 mm | 3/8 in | 330 bar | 130 mm |
| 16 mm | 5/8 in | 250 bar | 200 mm |
| 25 mm | 1 in | 165 bar | 300 mm |
| 51 mm | 2 in | 80 bar | 630 mm |
These figures illustrate why buyers should not assume that one pressure rating applies to every 2SN size. A larger bore may have a lower rated working pressure and a larger minimum bend radius than a smaller bore. Working pressure is also different from burst pressure, proof pressure, and the pressure experienced during transient spikes. Use the rating and operating limits documented for the offered hose and assembly.
Start by recording the system’s normal operating pressure, any known pressure peaks, the fluid type, and the expected temperature range. Include the external environment, such as exposure to oil, moisture, sunlight, heat, or abrasion. If the application involves unusual fluids or conditions, request written compatibility guidance for the specific hose compound. Do not assume that a general description such as “oil resistant” covers every fluid formulation or temperature.
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Next, confirm the required flow and nominal bore with the equipment designer or hydraulic specialist. Undersizing can increase flow velocity and contribute to pressure loss or heat generation, while oversizing may create fit and routing problems. The hose must also be routed without twisting, tension, crushing, or bending below its specified minimum radius. Leave appropriate allowance for movement where the assembly flexes in service.
Specify the fitting type, thread standard, connection size, orientation, and required assembly length. State whether the quoted length is measured overall or between defined reference points, because measurement conventions can differ. For angled fittings, provide the orientation or a drawing so the assembled hose can be installed correctly. Also confirm whether the requirement is for bulk hose or a crimped hose assembly.
The cost of a 2SN hose or assembly depends on factors such as bore, order quantity, hose length, fittings, customization, and packaging. A bulk-hose order and a made-to-length assembly with specialized ends are not directly comparable on unit price alone. Minimum order quantities and lead times depend on the supplier’s available sizes, production schedule, and order configuration. Request these terms in the quotation rather than relying on a general estimate.
For a useful commercial comparison, ask suppliers to quote the same specification and state whether pricing includes fittings, assembly, testing, packaging, and freight. Confirm the quoted delivery basis and whether the lead time begins after specification approval or order confirmation. If your project has a fixed delivery window, provide it at the enquiry stage. This helps the supplier assess feasibility before you commit to a purchase schedule.
At Hengshui Xinchi Hose Manufacturing Co., Ltd., we supply hydraulic rubber hoses and support B2B buyers with product and order discussions. Share your required 2SN size, application conditions, quantity, and assembly details so our team can check the request against the available product specification. Where a project requires documents or particular packaging, include those needs in the enquiry. Final suitability should be confirmed against the offered datasheet and your equipment requirements.
DIN EN 853 2SN is a two-wire-braid hydraulic hose option for applications that require a suitable combination of pressure capacity and flexibility. Selecting the correct hose means checking size-specific working pressure and bend radius, then confirming fluid compatibility, temperature limits, routing, and end fittings. Do not base an order on the 2SN designation alone. To request a quotation from Hengshui Xinchi Hose Manufacturing Co., Ltd., send the required bore, operating conditions, hose length, connection details, quantity, and target delivery schedule.
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