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Hydraulic hose 4SH Polyhose PH278 (EN 856 4SH) - DN20-DN50, up to 420 bar

Hydraulic hose with four steel spirals for very high pressures (EN 856 4SH / ISO 3862). Polyhose product available in 5 sizes (DN20-DN50), working pressure 250-420 bar, continuous -40°C to +100°C, intermittent +120°C.

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1SN / 1SC / 1SC EXC.2SN / 2SC / 2SC EXC.Spiral 4SP / 4SH / R15Thermoplastic R1 / R7 / R8TWIN R1 / R7 / R8 / 1SC / 2SCTextile 1TE / 2TE / 3TEHose protection
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Hydraulic hose 4SH Polyhose PH278 (EN 856 4SH) - DN20-DN50, up to 420 bar

Polyhose
Your
ref		SKUDN diameterInner
diameter [mm]		Working
pressure [bar]		Burst
pressure [bar]		Bending
radius [mm]		Outer
diameter [mm]		Temperature
range [°C]		QtyNet price
…4SH 20 POLYHOSEDN2019.4420168028032.2-40°C do +100°C…Fittings
…4SH 25 POLYHOSEDN2525.9380152034038.7-40°C do +100°C…Fittings
…4SH 32 POLYHOSEDN3232.5325130046045.5-40°C do +100°C…Fittings
…4SH 40 POLYHOSEDN4038.7290116056053.5-40°C do +100°C…Fittings
…4SH 50 POLYHOSEDN5051.3250100070068.1-40°C do +100°C…Fittings

Technical data

Parameter Value
Standard EN 856 4SH, ISO 3862
Number of sizes 5
Diameter range DN20-DN50
Working pressure range 250 - 420 bar
Temperature range Continuous -40°C to +100°C, intermittent +120°C
Impulse cycles 400 000 cycles
Manufacturer Polyhose

Construction

Layer Description
Inner tube Black synthetic rubber, oil- and water-resistant
Reinforcement Four high-tensile steel wire spirals
Cover Black synthetic rubber, resistant to abrasion, weather, oils and ozone

Applications

Very high pressure hydraulic hoses 250-420 bar and hoses for hydrostatic transmissions. For use with mineral oils, synthetic and water-based fluids. Construction and materials handling machinery.

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