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Thermoplastic TWIN R8 DN08 350bar Twin Hose +

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€21.83

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lin. m.

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Manufacturer: HYDRON hydraulika siłowa (go to products)

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TWIN R8 DN08 350 bar thermoplastic hose – twin hydraulic line

The TWIN R8 DN08 350 bar thermoplastic hose is a double hydraulic line designed for creating flexible connections in power hydraulic systems. The twin construction consists of two parallel-connected hoses, each of which forms an independent channel for hydraulic oil flow. The nominal diameter of each core is DN08 (5/16"), and the maximum working pressure is 350 bar. Combining two lines into a single construction facilitates installation and reduces the need for separate mounting of each line. The TWIN R8 hose is used in appropriately selected hydraulic systems of industrial machinery, transport equipment, and mechanisms with moving working components.

Technical parameters of the TWIN R8 DN08 hose

Line type: twin thermoplastic hydraulic hose.
Construction type: TWIN R8.
Number of cores: 2 independent hydraulic lines.
Nominal diameter of each core: DN08 (5/16").
Working pressure: 350 bar.
Construction: two parallel-fused thermoplastic lines.
Intended use: power hydraulic systems requiring the routing of two hydraulic lines.

Application of twin hose in power hydraulics

The TWIN R8 DN08 thermoplastic hose is intended for installations where parallel routing of two flexible hydraulic connections is necessary. The twin construction allows for a reduction in the number of separately laid lines and facilitates the organization of their path inside the machine. This solution is particularly useful in equipment equipped with moving hydraulic components.

Double hydraulic lines are used, among others, in lifts, work platforms, forklift masts, construction machinery, and industrial equipment. They can serve to connect double-acting cylinders where two independent connections for supplying and draining hydraulic oil are required.

The use of the TWIN construction helps to organize the installation in places where lines move during operation along with an arm, mast, or boom. Selecting a hose for a specific device requires consideration of the working pressure, diameter, required flow, and the method of routing the line.

TWIN construction – two lines in one installation

The TWIN twin hose consists of two hydraulic lines connected along their length. Each has its own flow channel, allowing it to serve a separate line of the hydraulic system. This construction allows for routing two connections side by side without the need for separate mounting paths for each line.

The TWIN hose is not a single line with an increased cross-section. The DN08 designation applies to each of the two cores. When selecting the diameter, the flow rate in both lines, the requirements of the consumer, and permissible pressure losses must be considered separately.

The thermoplastic construction of the line provides an alternative to traditional rubber hydraulic hoses. Individual solutions differ in the materials used, the type of reinforcement, and mounting parameters. When replacing a line, full technical properties should be compared, rather than just the nominal diameter.

350 bar working pressure in hydraulic systems

The maximum working pressure of the TWIN R8 DN08 hose is 350 bar. This parameter allows the line to be used in appropriately selected high-pressure hydraulic power installations. During system design and modernization, the maximum pressure occurring during machine operation, including possible dynamic loads, must be taken into account.

The permissible pressure of the complete hose assembly also depends on the parameters of the hydraulic fittings, crimp ferrules, and other connection elements used. The rated pressure of the finished line cannot exceed the permissible value for its weakest component.

Routing TWIN lines in machines and equipment

During the installation of a twin hose, adequate space must be provided for both connected cores. The line should be routed without twisting around its own axis and without excessive bending. Special attention should be paid to places where the hose changes direction and its mounting points.

In mobile installations, it is necessary to account for the full range of movement of machine components. The hose should not be excessively strained or exposed to compression between interacting structural parts. The minimum bend radius specific to the model used must also be maintained.

In areas exposed to contact with sharp edges or friction, additional spiral guards for hydraulic hoses can be used. The guard should be selected based on the dimensions of the twin construction and the operating conditions of the installation.

Crimping TWIN R8 thermoplastic hoses

The TWIN R8 DN08 hose can be used to prepare complete hydraulic lines with appropriately selected fittings. Each core requires a separate termination, consistent with the type of connection in the system. Assembly should be performed using ferrules and fittings intended for the specific thermoplastic line construction.

To install the fittings, it may be necessary to locally separate the two connected lines. This operation should be carried out without damaging the outer and reinforcing layers of the individual cores. Improper preparation of the hose end can weaken the connection and lead to leaks.

Crimping parameters must be adjusted to the specific hose, fitting, and ferrule set used. Crimping diameters intended for rubber hydraulic hoses or other thermoplastic lines should not be automatically applied. HYDRON also offers custom-made crimped hydraulic hoses, prepared with fittings adapted to the installation requirements.

TWIN R8 hose versus other twin line constructions

Twin thermoplastic hoses come in various construction types and diameters. The R1, R7, and R8 designations allow for the distinction of individual line families, which may have different types of reinforcement, permissible pressures, and performance characteristics.

When replacing a twin hose, the diameter of both cores, maximum working pressure, external dimensions, minimum bend radius, temperature range, and fitting compatibility must be checked. The DN08 designation alone is not a sufficient basis for considering the lines interchangeable. In installations requiring a specific manufacturing standard, the compliance of the selected model with the relevant technical documentation should also be confirmed.

Why choose the TWIN R8 DN08 thermoplastic hose?

350 bar working pressure for appropriately selected hydraulic systems.
Two parallel hydraulic lines combined into one construction.
Nominal diameter DN08 (5/16") of each core.
Two independent hydraulic oil flow channels.
Organized routing of two hydraulic lines in the machine.
Can be used in devices with moving hydraulic units.
Thermoplastic construction designed for creating flexible connections.
Ability to prepare a complete hydraulic assembly with appropriately selected fittings.

Technical specification

Technical parameter	Value
Product name	TWIN R8 DN08 350 bar thermoplastic hose
Product type	Twin thermoplastic hydraulic hose
Construction type	TWIN R8
Number of cores	2
Nominal diameter of each core	DN08 (5/16")
Working pressure	350 bar
Construction	Two parallel-connected thermoplastic lines
Application	Power hydraulic systems

Frequently Asked Questions (FAQ)

What does TWIN mean in the name of the R8 hydraulic hose?

TWIN denotes a twin hose consisting of two parallel-connected lines. Each core serves as an independent hydraulic oil flow channel. This construction allows for the combined routing of two hydraulic lines.

What is the working pressure of the TWIN R8 DN08 hose?

The maximum working pressure is 350 bar. When creating a complete assembly, the permissible pressure of the fittings and other connection elements used must also be considered.

Do both cores of the TWIN hose have a DN08 diameter?

Yes. Each core has a nominal diameter of DN08 (5/16"). The hose has two independent flow channels that can be utilized in an appropriately selected hydraulic circuit.

Where are twin thermoplastic hoses used?

Twin hoses are used, among others, in lifts, forklifts, construction machinery, and industrial equipment. They perform well in installations requiring the joint routing of two independent hydraulic lines.

Can the TWIN R8 DN08 hose be replaced by another type of line?

Selecting a replacement requires comparing the working pressure, internal and external diameters, minimum bend radius, construction materials, and fitting compatibility. The same DN08 diameter designation does not guarantee full interchangeability of different hose types.