What is the difference between 4sp and 4sh hose?

According to the world production standards, which for most plants is the European standard EN856, there are four types of winding design hydraulic hoses: 4SP and 4SH.

4SP hoses are manufactured by winding four spirals into a power cord. They are used in conditions of medium pressures that range from 450 bar to 165 bar.

4SP Spiral rubber hose

4SP Spiral rubber hose

Hydraulic Hose EN856  4SP

  • Tube: high-quality synthetic rubber compounds.
  • Reinforcement: four-spiral high tensile steel wires.
  • Cover: abrasion and weather-resistant synthetic rubber.
  • Temperature: -40 °C to +100 °C (-40 °F to +212 °F).

The design of the 4SH hose is also a winding of four spirals, but the wire has a special strength reinforcement, which allows the use of the hose in high-pressure conditions.

4SH hoses are available in diameters that range from 20 mm to 50 mm with a working pressure range from 430 bar to 280 bar. This working pressure is an order of magnitude higher than the 4SP type.

high pressure 4sh hose

High-Pressure 4SH hose

Hydraulic Hose EN856 4SH

  • Tube: high-quality synthetic rubber compounds.
  • Reinforcement: four-spiral high tensile steel wires.
  • Cover: abrasion and weather-resistant synthetic rubber.
  • Temperature: -40 °C to +100 °C (-40 °F to +212 °F).

Hoses designed with a winding construction are actively used in mining equipment and mining fields.

DIN EN856 4SP and 4SH can be used for forklift, hydraulic engine, oilfield extraction machinery, mine/road/construction machinery, and so on.