EN856 4SH hydraulic hose is a high-pressure hose built with four spirals of high-tensile steel wire reinforcement. Buyers typically consider it for demanding hydraulic circuits where pressure resistance, flexibility, and compatibility with the system’s fluid and fittings all matter. The right choice depends on more than the 4SH designation: verify the required bore, working pressure, temperature range, bend radius, fluid compatibility, and connection details against the hose manufacturer’s product data.
This guide explains the construction and typical uses of EN856 4SH hose, then provides a practical framework for comparing specifications and suppliers. Exact ratings can vary with nominal size, product design, and manufacturer, so use the figures below as selection context rather than as a substitute for the data sheet for the specific hose you plan to purchase.
This guide is intended for hydraulic equipment manufacturers, maintenance teams, distributors, and purchasing professionals sourcing high-pressure hose. It can help buyers screen whether 4SH construction is suitable for a proposed system and prepare the information needed for a supplier inquiry. It is not a replacement for system-level engineering review or the applicable hose and equipment documentation.
EN856 4SH hose typically consists of an oil-resistant synthetic rubber inner tube, four spiraled layers of high-tensile steel wire reinforcement, and an outer rubber cover. The inner tube carries the hydraulic fluid, the wire layers provide reinforcement against internal pressure, and the cover helps protect the hose from external exposure. The construction is intended for demanding hydraulic service, but performance must be confirmed for the specific product and application.
The “4SH” designation describes a hose type, not a complete system rating. Working pressure, burst pressure, dimensions, and bend radius are product and size dependent. A hose should not be selected by designation alone or used above the manufacturer’s stated limits.
EN856 4SH products are commonly offered in nominal bores from DN19 to DN51, depending on the supplier’s range. Typical size references include DN19 (3/4 in), DN25 (1 in), DN31 (1 1/4 in), DN38 (1 1/2 in), and DN51 (2 in). Some product literature lists an operating temperature range of approximately -40°C to +100°C, but the permitted range can differ by hose design, fluid, and service conditions, so confirm it on the selected product’s data sheet.
These figures help buyers identify a preliminary size and operating envelope; they do not establish the pressure rating of a particular hose. Ask the supplier for the rating at the required bore and confirm any limits for fluid type, ambient exposure, and intermittent temperature peaks.
Buyers may evaluate 4SH hose for high-pressure hydraulic circuits in mobile and industrial equipment, including machinery that uses hydraulic cylinders or motors. Its multi-spiral reinforcement can make it a candidate for applications where a lower-reinforcement hose is not suitable. Suitability still depends on the system’s actual pressure profile, flow requirement, hose routing, and operating environment.
Before specifying 4SH, check whether the application needs its pressure capability or whether another hose construction can meet the same requirements with a more suitable bend radius, weight, or cost. A larger hose may be needed for flow, while a compact routing path may impose a minimum bend-radius constraint. Where the line experiences pressure spikes, vibration, or repeated movement, include those operating conditions in the technical review rather than relying only on nominal system pressure.
Start by recording the system’s normal and maximum operating pressure, fluid type, temperature range, flow needs, and duty cycle. Include likely pressure surges and any unusual operating conditions identified by the equipment designer. If the pressure varies substantially, ask the equipment manufacturer or a qualified hydraulic engineer to clarify the design basis before choosing a hose.
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Choose the nominal bore based on the system design and required flow, not simply the size of a nearby component. Confirm the installed length and routing, including movement, vibration, and clearance from hot or abrasive surfaces. Check the supplier’s stated minimum bend radius for the exact size and avoid forcing a tight bend near a fitting.
Hose and fittings need to be compatible as an assembly. Provide the supplier with end connection type, thread or flange details, orientation, and assembly length, as well as any applicable equipment drawing or specification. Do not assume that a fitting compatible with one hose construction is automatically suitable for another.
Request a current technical data sheet showing the selected hose’s dimensions, working pressure by size, temperature limits, bend radius, and fluid compatibility information. If your project requires traceability, inspection records, or specific documentation, state those requirements before purchase and confirm what the supplier can provide. Keep the approved specifications and assembly details available for future replacement orders.
| Selection factor | What to confirm | Why it matters |
|---|---|---|
| Pressure | Working pressure for the exact bore and product | Prevents selection based on a rating that applies to a different size or design |
| Temperature and fluid | Permitted limits for the intended fluid and operating conditions | Supports compatibility and service suitability |
| Routing | Minimum bend radius, movement, and clearance | Helps avoid installation strain and premature damage |
| End connections | Fitting type, size, orientation, and assembly length | Reduces mismatch during installation and replacement |
Pricing for EN856 4SH hose can depend on nominal bore, requested length, fitting configuration, order quantity, and documentation or packaging requirements. Minimum order quantities and production or shipping lead times are supplier-specific and may change with stock and order details. For a meaningful comparison, send the same technical specification to each supplier and compare the offered product, included fittings, delivery terms, and documentation—not just the unit price.
For repeat purchasing, ask whether the supplier can quote against an agreed specification and identify any changes that would require reapproval. Confirm quotation validity, packaging, shipment arrangements, and how substitutions will be handled before placing an order.
When assessing a hose supplier, look for clear technical responses and product documentation tied to the requested size and construction. A supplier should be able to clarify what information is needed to quote the hose or assembly and identify any points that require confirmation. Avoid relying on broad statements such as “high pressure” without a size-specific rating and stated conditions.
Hengshui Xinchi Hose Manufacturing Co., Ltd. supplies rubber hose products and can be contacted to discuss EN856 4SH requirements, available sizes, and quotation details. Share your operating conditions, hose dimensions, fitting requirements, and target quantity so the team can confirm product availability and relevant specifications for your inquiry. Request the applicable documentation before approval or installation.
EN856 4SH is a four-spiral-wire hydraulic hose construction intended for demanding pressure applications, but the designation alone does not confirm that a product fits your system. Select by verifying size-specific working pressure, temperature and fluid compatibility, bend radius, routing conditions, and fitting details. These checks help you assess whether 4SH is appropriate or whether another hose construction better matches the application.
As a next step, prepare your operating pressure, fluid, temperature range, nominal bore, hose length, connection details, and quantity. Send these requirements to Hengshui Xinchi Hose Manufacturing Co., Ltd. or another qualified supplier and request a current data sheet and written quotation. Approve the hose only after the offered specification matches your equipment requirements.
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