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Hydraulic hose for railway applications DN08 1SN 215 bar

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€5.70

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lin. m.

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Hydraulic hose for railway applications DN08 1SN 215 bar (EN 45545-2)

Specialized hydraulic hose for railway applications DN08 1SN with a working pressure of 215 bar is a flexible pressure line with a single steel braid, designed for the rigorous requirements of rail transport and rolling stock. The hose meets the European fire protection standard EN 45545-2, which qualifies it for use in locomotives, passenger carriages, traction units, as well as trams and track machines. The outer cover made of flame-retardant, self-extinguishing synthetic rubber is characterized by very low smoke and toxic gas emissions in the event of a fire. The hose is intended for the leak-free transport of mineral and synthetic oils, hydraulic fluids, water-glycol solutions, water, and compressed air in power, control, and auxiliary installations.

Application, construction and advantages of the DN08 1SN railway hose

In rail vehicle installations, flexible pressure connections are subjected to vibrations, temperature changes, and atmospheric influences. The DN08 1SN 215 bar railway hose combines mechanical strength with the fire safety requirements of the railway industry.

Fire certification EN 45545-2: The external synthetic rubber meets the requirements for flammability and low smoke toxicity (levels HL1, HL2, HL3).
Compliance with hydraulic standards: Manufactured according to EN 853 1SN and SAE 100 R1AT standards, allowing use with standard swaged fittings.
Single-braid steel construction: Reinforcement from a single high-strength steel braid ensures flexibility and a small bending radius at a working pressure of 215 bar.
Wide operating temperature range: From -40°C to +100°C (momentarily up to +125°C), enabling stable operation in winter conditions and with heated oil.
Environmental resistance: The rubber cover exhibits resistance to abrasion, ozone, UV radiation, petroleum fluids, and atmospheric factors.

What to connect the DN08 1SN railway hose with and how to avoid assembly errors?

The hydraulic hose for railway applications DN08 1SN (internal diameter 5/16" – approx. 7.9 mm) works with standard power hydraulics fittings:

Swaged hose fittings: Standard metric fittings (DKOL/DKOS, CEL/CES), imperial BSP (DKR, AGR), JIC and ORFS sealed with T20 or T21 DN08 (5/16") ferrule sleeves.
Working media: Petroleum-based hydraulic oils, synthetic esters, cooling fluids (glycol), water, and compressed air.

When selecting and installing railway hoses, the required working pressure of the system must be carefully verified. For the DN08 (5/16") diameter, the 1SN version offers a working pressure of 215 bar with a safety factor of 4:1 (burst pressure is min. 860 bar). If the system requires a higher pressure (e.g., up to 350 bar), a double-braided 2SN version should be used. Correct crimping of the sleeve on the hose assembly machine depends on the crimping table provided by the fittings and hose manufacturer.

Technical specification

Technical parameter	Value / Description
Product name	Hydraulic hose for railway applications DN08 1SN 215 bar
Nominal diameter (DN)	DN08 (5/16" inch / approx. 7.9 mm)
Construction type / Braid	1SN (1 high-strength steel wire braid)
Maximum working pressure	215 bar
Burst pressure	860 bar (safety factor 4:1)
Railway fire standard	EN 45545-2 (levels HL1 / HL2 / HL3)
Hydraulic standards	EN 853 1SN, SAE 100 R1AT, ISO 1436
Operating temperature range	from -40°C to +100°C (momentarily up to +125°C)
Inner / outer layer	Oil-resistant synthetic rubber / flame-retardant ozone-resistant rubber

Frequently Asked Questions (FAQ)

What does the EN 45545-2 standard mean for a hydraulic hose?

The EN 45545-2 standard defines the fire performance requirements for materials used in rail vehicles. A hose meeting this standard has a flame-retardant outer cover that limits the spread of fire and emits a small amount of smoke and toxic gases.

Do standard fittings and sleeves fit the DN08 1SN railway hose?

Yes, the geometric dimensions of the 1SN hose compliant with EN 45545-2 correspond to standard EN 853 norms. Common hydraulic fittings and T20 or T21 DN08 ferrule sleeves are used for swaging.