Product Description:
EN 856 4SH is a four-spiral wire reinforced hydraulic hose, engineered for demanding industrial and mobile hydraulic systems. It features an oil and water-resistant synthetic rubber lining, four layers of spiral steel wire with insulating layers between each ply, and a rugged outer cover resistant to abrasion, oil, and ozone. Its spiral design ensures excellent flexibility, strength, and long-term reliability.
Construction:
Tube:
oil-resistant synthetic rubber
Reinforcement:
four steel wire spirals
Cover:
oil, water, heat, abrasion, weather, and ozone-resistant synthetic rubber
Temperature Range:
-40°C to +120°C (-40°F to +248°F), intermittent up to -60°C to +160°C (-76°F to +320°F)
Applications:
Suitable for petroleum-based and approved water-based hydraulic fluids in high-performance industrial and mobile systems.
Typical applications include:
• Construction and mining equipment
• Agricultural machinery under heavy load
• Industrial hydraulic circuits requiring high performance
• Mobile vehicles and heavy machinery
Key Features:
• Reinforced Spiral Design: Superior strength and stability.
• Four Steel Wire Layers: Ensures durability and dimensional reliability.
• Durable Inner Tube: Oil and water-resistant synthetic rubber.
• Rugged Outer Cover: Protects against abrasion, oil, and ozone.
• Wide Temperature Range: -40°C to +100°C with petroleum fluids.
• Enhanced Flexibility: Easy routing in confined spaces.
• Long Service Life: Reliable in demanding hydraulic systems.
• Customizable Assemblies: Available in multiple lengths and fittings.
TECHNICAL DATA
| Part Number |  Inside Diameter |  Outside Diameter |  Max Working Pressure |  Min Burst Pressure |  Min Bend Radius |  Approx. Weight |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| dash | DN | inch | Min ID | Max ID | Min OD | Max OD | MPa | bar | psi | MPa | bar | psi | mm | inch | kg/m | lb/ft | |||||
| mm | inch | mm | inch | mm | inch | mm | inch | ||||||||||||||
| YH-EN856-4SH-12 | -12 | 19 | 3/4" | 19.1 | 0.75 | 19.8 | 0.78 | 31.4 | 1.24 | 33.0 | 1.30 | 42.0 | 420 | 6,090 | 168 | 1,680 | 24,360 | 280 | 11.02 | 1.538 | 1.03 |
| YH-EN856-4SH-16 | -16 | 25 | 1" | 25.5 | 1.00 | 26.4 | 1.04 | 37.5 | 1.48 | 39.9 | 1.57 | 38.0 | 380 | 5,510 | 152 | 1,520 | 22,040 | 340 | 13.39 | 2.064 | 1.39 |
| YH-EN856-4SH-20 | -20 | 32 | 1-1/4" | 32.0 | 1.26 | 33.0 | 1.30 | 43.9 | 1.73 | 47.1 | 1.85 | 32.5 | 325 | 4,710 | 130 | 1,300 | 18,850 | 460 | 18.11 | 2.467 | 1.66 |
| YH-EN856-4SH-24 | -24 | 38 | 1-1/2" | 38.2 | 1.50 | 39.3 | 1.55 | 51.9 | 2.04 | 55.1 | 2.17 | 29.0 | 290 | 4,200 | 116 | 1,160 | 16,820 | 560 | 22.05 | 3.356 | 2.26 |
| YH-EN856-4SH-32 | -32 | 51 | 2" | 50.6 | 1.99 | 52.0 | 2.05 | 66.5 | 2.62 | 69.7 | 2.74 | 25.0 | 250 | 3,620 | 100 | 1,000 | 14,500 | 700 | 27.56 | 4.552 | 3.06 |
