FAQs & Resources

FAQS & RESOURCES

If you have a question that you can’t find the answer to, please use the contact us page.

Hoses are made from different materials. Rubber hoses are the most common since they are highly flexible and durable. Metal hoses can be flexible or solid. They are best for systems that have high-temperature materials flowing through them. Thermoplastic and Teflon hoses are ideal for projects where you need to resist chemicals and corrosion.

Most hoses have three layers. The inner layer is flexible and designed to be compatible with the fluid that will be running through the hose. The middle layers serve as reinforcement. It’s typically made with a braided wire fabric or spiral wound wire. The outer layer is designed to protect the hose from the elements of where it will be, such as offering resistance to weather or oil.

Hydraulic hoses must be durable since hydraulic systems operate at high pressures. These hoses are often reinforced with multiple layers to make them more durable for their specific job. Make sure to select the right type of hose, as the function it will perform will impact its durability.

These types of hoses are required in hydraulic systems that need a flexible connection between two fluid ports. Their flexibility allows them to move fluid between two moving parts. They are used in machinery, engines, and large power tools.

Hydraulic hose assemblies are used to transmit force by means of oil pressure and consist of flexible hydraulic hoses to which fittings are attached at either end to ensure safe, interlocking connections.

The correct choice of hose assembly components is influenced by many factors, in particular the dynamic working pressure, resistance to the media being transmitted and operating temperatures – both ambient and the media.

Often legal and other regulations need careful consideration where hydraulic hose assemblies are used, and the manufacturer should be informed about them when you make your enquiry. In some cases, observing the instructions for installation will determine the potential service life of a hydraulic hose assembly.

The required inside diameter of a hose assembly is determined by the projected working pressure and the proposed rate of flow.

Never undersize hoses…
Undersized hose assemblies result in a high flow rate of the medium. The ensuing turbulence causes considerable loss of pressure, noise and increased temperatures. This can be detrimental to the entire system.

If undersize valve connections suggest smaller hose diameters, we recommend the use of suitable adapters which then cause only local constrictions in the system.

In practice hydraulic hose assemblies are subjected to dynamic loading. A hose assembly must therefore be designed for operation at the maximum permissible working pressure specified for the respective hose type and size.

Hydraulic hose has a Safety factor of 4:1. The working pressure of a hydraulic hose assembly is normally a quarter of the theoretical or specified bursting pressure. This safety factor of 4:1 conforms to SAE, DIN and EN-regulations.

Dynamic operating pressures is the most frequently operating condition in hydraulic systems. Pure static load is the absolute exception and therefore the Static Working Pressure has been eliminated from the standards.

Consider peak pressures – a hose with a higher-pressure rating than the actual working pressure of the installation should be selected for systems in which sudden peak pressures occur.

The values specified for bursting pressure are minimum values. They apply only to unused hose assemblies. The bursting pressure of a hose or a hose assembly must therefore remain a purely theoretical value for the user. 

In view of the safety requirements imposed on any installation, this value must never be reached – or even approached – in practice. It is incorrect to assume that comparable hoses of different manufactures have longer service life under the same operating conditions the higher the rating for bursting pressure is. Designers should therefore take dynamic pressure values into consideration!

Hose assemblies can be statically tested at suitable test pressures; neither leaks nor failure must occur. THC has a state-of-the-art test facility. We are able to test assemblies up to 1500bar.

The operating temperatures given for hoses are the maximum temperatures of the medium. Ambient temperatures must also be taken into consideration.

Continuous operation at high temperatures can adversely affect the service life of the hose and the reliable retention of end fitting integrity. 

Temperature resistance depends on medium –  hose assemblies cannot be used for any medium over the specified temperature range. In case of doubt please ask! 

Hose assemblies will have a considerably longer service life if they are not continually used at the limits of their working pressure, bend radius and temperature of medium and environment.

The chemical resistance of the rubber lining is an important factor to consider when making a hose assembly selection. Consideration should be given to the concentration and duration of exposure to the medium.

In principle the rubber lining is resistant to hydraulic liquids of a mineral or synthetic oil base, to glycol water mixtures and oil water emulsion but not resistant to phosphate ester-based liquids (hFD).

Further details of the resistance of hoses to various other media can be found in the table of chemical resistance. (Kindly enquire from our sales staff)

However, this table should be regarded only as a guideline for the chemical resistance of our hoses. Please consult us in case of doubt, or if there is a possibility of the medium coming into contact with the outside cover.

Every hose is subject to certain changes in length under working pressure. The standards specify that these values can vary between –4% and +2% at maximum working pressure.

This change in length must be taken into consideration in each case when calculating the nominal length of a hose assembly with fittings.

We should also consider how the specified minimum bend radius apply to stationary hose assemblies at maximum working pressure.

The service life of a hose assembly is impaired if bends of less than the recommended minimum bend radius are used. Working pressure should be reduced in such cases.

Hoses are made from different materials. Rubber hoses are the most common since they are highly flexible and durable. Metal hoses can be flexible or solid. They are best for systems that have high-temperature materials flowing through them. Thermoplastic and Teflon hoses are ideal for projects where you need to resist chemicals and corrosion.

Most hoses have three layers. The inner layer is flexible and designed to be compatible with the fluid that will be running through the hose. The middle layers serve as reinforcement. It’s typically made with a braided wire fabric or spiral wound wire. The outer layer is designed to protect the hose from the elements of where it will be, such as offering resistance to weather or oil.

Hydraulic hoses must be durable since hydraulic systems operate at high pressures. These hoses are often reinforced with multiple layers to make them more durable for their specific job. Make sure to select the right type of hose, as the function it will perform will impact its durability.

These types of hoses are required in hydraulic systems that need a flexible connection between two fluid ports. Their flexibility allows them to move fluid between two moving parts. They are used in machinery, engines, and large power tools.

Hydraulic hose assemblies are used to transmit force by means of oil pressure and consist of flexible hydraulic hoses to which fittings are attached at either end to ensure safe, interlocking connections.

The correct choice of hose assembly components is influenced by many factors, in particular the dynamic working pressure, resistance to the media being transmitted and operating temperatures – both ambient and the media.

Often legal and other regulations need careful consideration where hydraulic hose assemblies are used, and the manufacturer should be informed about them when you make your enquiry. In some cases, observing the instructions for installation will determine the potential service life of a hydraulic hose assembly.

The required inside diameter of a hose assembly is determined by the projected working pressure and the proposed rate of flow.

Never undersize hoses…
Undersized hose assemblies result in a high flow rate of the medium. The ensuing turbulence causes considerable loss of pressure, noise and increased temperatures. This can be detrimental to the entire system.

If undersize valve connections suggest smaller hose diameters, we recommend the use of suitable adapters which then cause only local constrictions in the system.

In practice hydraulic hose assemblies are subjected to dynamic loading. A hose assembly must therefore be designed for operation at the maximum permissible working pressure specified for the respective hose type and size.

Hydraulic hose has a Safety factor of 4:1. The working pressure of a hydraulic hose assembly is normally a quarter of the theoretical or specified bursting pressure. This safety factor of 4:1 conforms to SAE, DIN and EN-regulations.

Dynamic operating pressures is the most frequently operating condition in hydraulic systems. Pure static load is the absolute exception and therefore the Static Working Pressure has been eliminated from the standards.

Consider peak pressures – a hose with a higher-pressure rating than the actual working pressure of the installation should be selected for systems in which sudden peak pressures occur.

The values specified for bursting pressure are minimum values. They apply only to unused hose assemblies. The bursting pressure of a hose or a hose assembly must therefore remain a purely theoretical value for the user. 

In view of the safety requirements imposed on any installation, this value must never be reached – or even approached – in practice. It is incorrect to assume that comparable hoses of different manufactures have longer service life under the same operating conditions the higher the rating for bursting pressure is. Designers should therefore take dynamic pressure values into consideration!

Hose assemblies can be statically tested at suitable test pressures; neither leaks nor failure must occur. THC has a state-of-the-art test facility. We are able to test assemblies up to 1500bar.

The operating temperatures given for hoses are the maximum temperatures of the medium. Ambient temperatures must also be taken into consideration.

Continuous operation at high temperatures can adversely affect the service life of the hose and the reliable retention of end fitting integrity. 

Temperature resistance depends on medium –  hose assemblies cannot be used for any medium over the specified temperature range. In case of doubt please ask! 

Hose assemblies will have a considerably longer service life if they are not continually used at the limits of their working pressure, bend radius and temperature of medium and environment.

The chemical resistance of the rubber lining is an important factor to consider when making a hose assembly selection. Consideration should be given to the concentration and duration of exposure to the medium.

In principle the rubber lining is resistant to hydraulic liquids of a mineral or synthetic oil base, to glycol water mixtures and oil water emulsion but not resistant to phosphate ester-based liquids (hFD).

Further details of the resistance of hoses to various other media can be found in the table of chemical resistance. (Kindly enquire from our sales staff)

However, this table should be regarded only as a guideline for the chemical resistance of our hoses. Please consult us in case of doubt, or if there is a possibility of the medium coming into contact with the outside cover.

Every hose is subject to certain changes in length under working pressure. The standards specify that these values can vary between –4% and +2% at maximum working pressure.

This change in length must be taken into consideration in each case when calculating the nominal length of a hose assembly with fittings.

We should also consider how the specified minimum bend radius apply to stationary hose assemblies at maximum working pressure.

The service life of a hose assembly is impaired if bends of less than the recommended minimum bend radius are used. Working pressure should be reduced in such cases.

Hoses are made from different materials. Rubber hoses are the most common since they are highly flexible and durable. Metal hoses can be flexible or solid. They are best for systems that have high-temperature materials flowing through them. Thermoplastic and Teflon hoses are ideal for projects where you need to resist chemicals and corrosion.

Most hoses have three layers. The inner layer is flexible and designed to be compatible with the fluid that will be running through the hose. The middle layers serve as reinforcement. It’s typically made with a braided wire fabric or spiral wound wire. The outer layer is designed to protect the hose from the elements of where it will be, such as offering resistance to weather or oil.

Hydraulic hoses must be durable since hydraulic systems operate at high pressures. These hoses are often reinforced with multiple layers to make them more durable for their specific job. Make sure to select the right type of hose, as the function it will perform will impact its durability.

These types of hoses are required in hydraulic systems that need a flexible connection between two fluid ports. Their flexibility allows them to move fluid between two moving parts. They are used in machinery, engines, and large power tools.

Hydraulic hose assemblies are used to transmit force by means of oil pressure and consist of flexible hydraulic hoses to which fittings are attached at either end to ensure safe, interlocking connections.

The correct choice of hose assembly components is influenced by many factors, in particular the dynamic working pressure, resistance to the media being transmitted and operating temperatures – both ambient and the media.

Often legal and other regulations need careful consideration where hydraulic hose assemblies are used, and the manufacturer should be informed about them when you make your enquiry. In some cases, observing the instructions for installation will determine the potential service life of a hydraulic hose assembly.

The required inside diameter of a hose assembly is determined by the projected working pressure and the proposed rate of flow.

Never undersize hoses…
Undersized hose assemblies result in a high flow rate of the medium. The ensuing turbulence causes considerable loss of pressure, noise and increased temperatures. This can be detrimental to the entire system.

If undersize valve connections suggest smaller hose diameters, we recommend the use of suitable adapters which then cause only local constrictions in the system.

In practice hydraulic hose assemblies are subjected to dynamic loading. A hose assembly must therefore be designed for operation at the maximum permissible working pressure specified for the respective hose type and size.

Hydraulic hose has a Safety factor of 4:1. The working pressure of a hydraulic hose assembly is normally a quarter of the theoretical or specified bursting pressure. This safety factor of 4:1 conforms to SAE, DIN and EN-regulations.

Dynamic operating pressures is the most frequently operating condition in hydraulic systems. Pure static load is the absolute exception and therefore the Static Working Pressure has been eliminated from the standards.

Consider peak pressures – a hose with a higher-pressure rating than the actual working pressure of the installation should be selected for systems in which sudden peak pressures occur.

The values specified for bursting pressure are minimum values. They apply only to unused hose assemblies. The bursting pressure of a hose or a hose assembly must therefore remain a purely theoretical value for the user. 

In view of the safety requirements imposed on any installation, this value must never be reached – or even approached – in practice. It is incorrect to assume that comparable hoses of different manufactures have longer service life under the same operating conditions the higher the rating for bursting pressure is. Designers should therefore take dynamic pressure values into consideration!

Hose assemblies can be statically tested at suitable test pressures; neither leaks nor failure must occur. THC has a state-of-the-art test facility. We are able to test assemblies up to 1500bar.

The operating temperatures given for hoses are the maximum temperatures of the medium. Ambient temperatures must also be taken into consideration.

Continuous operation at high temperatures can adversely affect the service life of the hose and the reliable retention of end fitting integrity. 

Temperature resistance depends on medium –  hose assemblies cannot be used for any medium over the specified temperature range. In case of doubt please ask! 

Hose assemblies will have a considerably longer service life if they are not continually used at the limits of their working pressure, bend radius and temperature of medium and environment.

The chemical resistance of the rubber lining is an important factor to consider when making a hose assembly selection. Consideration should be given to the concentration and duration of exposure to the medium.

In principle the rubber lining is resistant to hydraulic liquids of a mineral or synthetic oil base, to glycol water mixtures and oil water emulsion but not resistant to phosphate ester-based liquids (hFD).

Further details of the resistance of hoses to various other media can be found in the table of chemical resistance. (Kindly enquire from our sales staff)

However, this table should be regarded only as a guideline for the chemical resistance of our hoses. Please consult us in case of doubt, or if there is a possibility of the medium coming into contact with the outside cover.

Every hose is subject to certain changes in length under working pressure. The standards specify that these values can vary between –4% and +2% at maximum working pressure.

This change in length must be taken into consideration in each case when calculating the nominal length of a hose assembly with fittings.

We should also consider how the specified minimum bend radius apply to stationary hose assemblies at maximum working pressure.

The service life of a hose assembly is impaired if bends of less than the recommended minimum bend radius are used. Working pressure should be reduced in such cases.

OUR PRODUCTS

View our extensive range of products for all your hydraulic requirements.

OUR PRODUCTS

View our extensive range of products for all your hydraulic requirements.

OUR CREDENTIALS

bee-credential
iso-credential
safpa-credential