Accessories

Hydraulic Accessories for Hose, Pipe and Component Connections

Hydraulic accessories are used to connect hoses, rigid pipes, pumps, motors, valves, cylinders and other components within a hydraulic system. Correct connection hardware helps maintain pressure integrity, control oil flow and reduce the risk of leakage.

HPM Hydraulic supplies accessories for mobile machinery, construction equipment, workshop repair and industrial hydraulic systems. The category includes hydraulic adaptors and hydraulic hose products for a wide range of connection standards and service conditions.

Hydraulic Adaptors and Connection Components

Hydraulic systems often combine components with different thread standards, port sizes or connection geometries. Adaptors make it possible to connect these interfaces safely and correctly.

Typical adaptor functions include:

• changing thread size,
• converting between thread standards,
• changing connection angle,
• splitting flow using tees,
• connecting rigid tube to hose,
• adapting flange ports to threaded fittings.

Hydraulic Hoses and Protection

Hydraulic hoses carry pressurized fluid between moving or fixed machine components. Hose selection must consider pressure, diameter, temperature, bend radius and reinforcement type.

Protective products such as spring guards can also help reduce abrasion and mechanical damage in exposed hose installations.

Why Connection Standard Matters

Hydraulic connections can use different thread and sealing systems. Two fittings with similar diameters may not be compatible if the thread form, sealing face or pitch is different.

Common standards in hydraulic systems include:

• BSP,
• BSPT,
• NPT,
• JIC,
• SAE,
• ORFS,
• metric threads,
• flange connections.

Always confirm the original standard rather than forcing similar-looking threads together.

How to Identify Hydraulic Accessories

Useful identification data includes thread diameter, pitch, male or female connection, sealing type and angle.

For hose-related components, also verify:

• hose inside diameter,
• hose specification,
• working pressure,
• fitting stem type,
• crimp or reusable connection design.

FAQ – Hydraulic Accessories

Can BSP and NPT fittings be connected together?

They use different thread forms and should not be treated as directly interchangeable unless a suitable adaptor is used.

What is the difference between JIC and ORFS?

JIC connections typically seal on a 37-degree flare, while ORFS connections use a flat sealing face with an O-ring.

Why do hydraulic fittings leak after installation?

Possible causes include incorrect thread standard, damaged sealing faces, wrong seal type, over-tightening or poor alignment.

How do I identify a hydraulic fitting?

Check thread diameter, pitch, male or female connection, sealing face, angle and any manufacturer markings.