High Pressure Hydraulic Hoses

High pressure hydraulic hoses carry hydraulic fluid between pumps, control valves, cylinders and other components in systems that operate under demanding pressure conditions. They are used in machinery where the hose must withstand internal pressure while accommodating movement, vibration and the routing requirements of the equipment.

The reinforcement inside the hose is an important part of its construction. Depending on the model, it may use steel wire braiding or multiple layers of spiral wound steel wire. The correct choice depends on working pressure, hose size, fluid compatibility, temperature and installation conditions.

Hydrofit Engineers offers a range of high pressure hydraulic hoses, including SAE 100 R9, R12, R13, R15, 4SP and 4SH spiral hose types. Each has its own construction and pressure rating, so the specific product data should be checked before selection.

Types of High Pressure Hydraulic Hoses

SAE 100 R9 Hydraulic Hose

SAE 100 R9 is a high pressure hydraulic hose type used in applications that require a reinforced hose construction. When considering this hose, check the required inside diameter, working pressure, temperature range and minimum bend radius against the applicable product specification.

The selected hose must also be compatible with the hydraulic fluid and the end fittings used in the assembly.

SAE 100 R12 Hydraulic Hose

SAE 100 R12 is a spiral reinforced hydraulic hose designed for demanding hydraulic applications. Its construction uses multiple layers of steel wire spiral reinforcement to provide pressure carrying capability.

It may be considered for heavy machinery and industrial hydraulic circuits when the model’s rated pressure, size and operating conditions match the equipment requirements.

SAE 100 R13 Hydraulic Hose

SAE 100 R13 is a high pressure spiral hose type intended for demanding hydraulic service. Hydrofit’s product page describes a construction with an oil resistant synthetic rubber inner tube, six layers of spiral wound steel wire reinforcement and a synthetic rubber outer cover.

The hose should be selected using its size specific working pressure and other published specifications, rather than a single pressure figure for the entire series.

SAE 100 R15 Hydraulic Hose

SAE 100 R15 is a heavy duty spiral reinforced hydraulic hose type intended for applications requiring high pressure capability. Before specifying it, confirm the required hose bore, working pressure, temperature limits, bend radius and applicable standard against the product datasheet.

4SP Hydraulic Hose

The 4SP hydraulic hose is a four spiral wire reinforced hose type used in demanding hydraulic systems. Its construction is designed for applications where pressure resistance and suitable hose flexibility are both important.

Selection should be based on the actual working pressure, bore, temperature, minimum bend radius and compatible fittings for the selected model.

4SH Hydraulic Hose

The 4SH hydraulic hose is another four spiral reinforced hose type listed in Hydrofit’s range. It is used in suitable high pressure hydraulic applications, subject to its specific rating and construction.

The 4SH hydraulic spiral hose page provides further product information. Confirm the size specific working pressure before choosing the hose for a machine or hydraulic circuit. 

Technical Specifications of High Pressure Hydraulic Hoses

Important: Burst pressure is not the permitted operating pressure. Always select the hose according to its rated working pressure and the equipment manufacturer’s requirements.

Applications of High Pressure Hydraulic Hoses

High pressure hydraulic hoses are used in industrial and mobile equipment where the selected hose is rated for the operating conditions. Common application areas include:

• Excavators, loaders and other construction equipment
• Hydraulic presses and industrial machinery
• Material handling and lifting equipment
• Mining and heavy duty machinery
• Steel plants and manufacturing facilities
• Agricultural machinery with suitable high pressure hydraulic circuits
• Marine and other industrial hydraulic systems where the hose is appropriately specified

The correct hose depends on the application, equipment design, pressure rating and environmental conditions. Not every hose series is suitable for every application listed above.

How to Choose the Right High Pressure Hydraulic Hose

A hose should be selected as part of the hydraulic circuit, not as an isolated component. Check the following before ordering.

1. Working pressure

Confirm the maximum operating pressure and account for pressure fluctuations or surges according to the equipment manufacturer’s guidance. The hose must have a suitable rated working pressure.

2. Hose construction

Check whether the application calls for a braided or spiral reinforced hose. Follow the equipment specification rather than selecting a hose solely because it has more reinforcement layers.

3. Bore size and flow

The internal diameter affects flow velocity and pressure loss. Select a size that meets the system’s flow requirements.

4. Temperature and fluid compatibility

Confirm that the inner tube is compatible with the hydraulic fluid and that the hose can operate within the required temperature range.

5. Bend radius and routing

Follow the specified minimum bend radius. Twisting, sharp bends, abrasion and excessive movement near the connections can shorten hose life.

6. End fittings and assembly

The end fittings must match the hose, port connection and required pressure rating. Review the range of hydraulic hose fittings when specifying the complete assembly.

High Pressure Hydraulic Hose Assemblies

A hydraulic hose assembly consists of a suitable hose fitted with compatible end connections. The hose, fittings and assembly method must be matched to the intended working pressure and application.

For replacement or new installations, provide the hose type, bore size, required length, working pressure, fluid, temperature and connection details. If replacing an existing assembly, the hose markings and equipment specifications can help identify the correct type.

Hydrofit Engineers also supplies a range of hydraulic hoses covering different pressure categories. This helps buyers compare available options before requesting a product specification or quotation.

High Pressure Hydraulic Hose Supplier in India

Hydrofit Engineers serves industrial hydraulic requirements from Chennai and across India. The range includes high pressure spiral hose types for equipment and systems that require appropriately rated hydraulic fluid transfer.

When enquiring, share the application details and operating requirements rather than relying on the hose name alone. This helps identify a suitable model and connection arrangement for the equipment.

Contact Hydrofit Engineers to discuss your high pressure hydraulic hose requirements and confirm the relevant product specifications.

Frequently Asked Questions

What is a high pressure hydraulic hose used for?

It transfers hydraulic fluid in machinery and systems that operate at elevated pressure. The selected hose must match the working pressure, fluid, temperature and installation conditions.

What is the difference between braided and spiral hydraulic hoses?

They use different reinforcement constructions. Wire braided hoses use braided reinforcement, while spiral hoses use layers of wire wound around the hose. The appropriate type depends on the hose specification and the demands of the application.

Which high pressure hydraulic hose should I choose?

The correct type depends on working pressure, hose bore, fluid, temperature, bend radius, equipment requirements and end connections. Compare the product datasheets for SAE R9, R12, R13, R15, 4SP and 4SH before making a selection.

Can one hose pressure rating be used for all sizes?

No. Working pressure can vary by hose type and size. Always refer to the published specifications for the exact model and diameter.