Choose EN 857 1SC when its pressure rating meets your system requirements and its installation conditions suit a single-wire-braid hose. Choose EN 857 2SC when the required working pressure exceeds the available 1SC rating or when your design calls for the added reinforcement of two wire braids. Both are compact hydraulic hose types, but neither is automatically the better choice for a tight installation: compare the exact hose size, rated pressure, outside diameter, bend radius, and routing path on the manufacturer’s datasheet. At Hengshui Xinchi Hose Manufacturing Co., Ltd., we recommend selecting by the complete operating and installation specification rather than by the “1SC” or “2SC” label alone.
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The main construction difference is reinforcement: EN 857 1SC uses one high-tensile steel wire braid, while EN 857 2SC uses two. In many sizes, 2SC is rated for higher working pressure, but the actual rating depends on nominal hose size and product specifications. A one-braid hose may be easier to route in some installations, while a two-braid hose may better suit higher-pressure circuits where its bend and routing requirements can be accommodated.
| Selection factor | EN 857 1SC | EN 857 2SC |
|---|---|---|
| Reinforcement | One steel wire braid | Two steel wire braids |
| Pressure suitability | Use when the size-specific rating covers the circuit’s requirements | Often selected when a higher size-specific pressure rating is needed |
| Installation considerations | Check outside diameter, minimum bend radius, and routing clearance | Check the same details; do not assume the added braid will fit the existing route |
| Best starting point | Moderate pressure needs and a suitable compact route | Higher pressure needs within the hose’s rated limits |
EN 857 identifies compact hydraulic hose types used to convey compatible hydraulic fluids under pressure. The “1SC” and “2SC” designations distinguish hose constructions, including the number of wire-braid reinforcement layers. The inner tube, reinforcement, and outer cover all contribute to hose performance, so buyers should confirm fluid compatibility, temperature range, and environmental suitability in addition to the reinforcement type.
Both types are intended for hydraulic applications where routing and installation dimensions matter. The “compact” description does not mean every 1SC or 2SC product has the same outside diameter or bend radius. Those dimensions vary by hose size and manufacturer, making the product datasheet essential when replacing a hose or designing a new assembly.
Pressure capability is not one fixed number for all hose sizes. For example, published EN 857 product tables commonly show a 6 mm nominal bore 1SC hose rated around 225 bar and a 6 mm 2SC hose rated around 400 bar. These figures are illustrative examples, not a substitute for the exact manufacturer’s datasheet, and ratings can vary by product. Confirm the working pressure for the specific size and assembly before making a selection.
When checking pressure, account for the maximum expected system pressure, including pressure peaks or pulses where relevant. Do not select a hose solely because its nominal working pressure matches the system’s normal operating pressure. Also verify the pressure rating of the fittings and assembled hose, since the assembly must be suitable for the application as a whole.
Start with the equipment specification and identify the highest pressure the hose will experience in service. Consider whether the circuit sees recurring surges, rapid cycling, or other conditions that may influence the hose choice. If the pressure profile is unclear, ask the equipment designer or hydraulic-system engineer to confirm it before ordering.
Confirm the nominal bore needed for the application rather than choosing a smaller hose simply to save space. An undersized hose can affect flow and system performance, while a size change also changes the applicable pressure rating and installation dimensions. Once the bore is established, compare the 1SC and 2SC ratings available for that exact size.
Measure the available clearance and map the hose route, including bends near fittings and moving parts. Compare the actual outside diameter and minimum bend radius of each candidate hose with the space available. As a practical check, leave room for assembly variation and movement rather than designing a route that only works when the hose is held in one exact position.
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A higher-reinforcement hose should not be assumed to fit an existing 1SC route. Even where the outside diameters are close, the listed bend radius and the behavior of the assembled hose may differ. Verify the proposed hose and fitting combination against the manufacturer’s dimensions before approving a substitution.
Check the hydraulic fluid, operating temperature range, external exposure, and expected service environment against the hose specification. Confirm fitting type, end connection, crimp requirements, and assembly length with the supplier. A hose that meets the pressure requirement can still be unsuitable if its tube or cover is not compatible with the fluid or installation conditions.
EN 857 1SC is a sensible candidate when its size-specific working-pressure rating meets the application requirement and its dimensions suit the route. It may help avoid specifying more reinforcement than the design needs, provided the full operating conditions are satisfied. This can be useful for replacement planning, compact machinery, and hydraulic circuits where pressure requirements are moderate relative to the available 1SC rating.
EN 857 2SC is worth evaluating when a 1SC hose of the required bore does not provide sufficient pressure capacity. Its two-braid construction is designed for demanding hydraulic pressure applications, but the specific product rating must still be checked. Use it only if its bend radius, outside diameter, and assembly requirements work with the installation.
Before requesting a quotation, prepare the nominal bore, required length, operating pressure, fluid type, temperature range, fitting details, and installation constraints. If you are replacing an existing hose, provide its markings and measurements where available, but do not treat a worn hose’s appearance as proof of its original specification. Sharing the equipment application and routing details helps a supplier assess whether 1SC, 2SC, or another specification should be considered.
At Hengshui Xinchi Hose Manufacturing Co., Ltd., we support B2B buyers sourcing rubber hydraulic hose products by reviewing application details and helping identify the information needed for product selection. We can discuss hose type, size, pressure requirements, fitting configuration, and supply requirements based on the information provided. Final suitability should be confirmed against the selected product’s technical documentation and the requirements of the equipment.
For EN 857 1SC versus 2SC, select the hose that meets the required pressure at the required bore and fits the available installation space. Start with 1SC if its verified rating is sufficient; consider 2SC when the required pressure calls for its higher-rated construction and the route accommodates its dimensions. Do not choose either type by designation alone, because pressure ratings and installation measurements are product- and size-specific.
Your next step is to confirm the circuit’s maximum pressure, nominal bore, fluid and temperature conditions, and available routing space. Then compare the exact 1SC and 2SC datasheets, including working pressure, outside diameter, and minimum bend radius, and verify the complete hose-and-fitting assembly. For help preparing a sourcing specification, contact Hengshui Xinchi Hose Manufacturing Co., Ltd. with your application details and required configuration.
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