Hydraulic Fittings and Pipes

Hydraulic Pipes and Tubes
Hydraulic pipes and tubes are rigid conductors made of materials like carbon steel or stainless steel. They are used in stationary systems or applications requiring minimal movement.

Differences:
Pipes: Sized by nominal diameter (NPS); typically schedule-based

Tubes: Sized by outside diameter (OD); tighter tolerances and better for precision systems

Advantages:
Durable and long-lasting

Suitable for high-pressure applications

Cleaner and lower expansion rate compared to hoses

When space allows and vibration is minimal, rigid piping is often the preferred type of hydraulic component for long-term reliability.

3. Hydraulic Fittings
Hydraulic fittings connect hoses, tubes, and components, ensuring leak-proof, secure joints. Their design must match the pressure rating, thread type, and material compatibility of the system.

Types of Fittings:
Threaded: NPT, BSP, SAE, and metric threads

Flared: 37° JIC, 45° SAE for metal-to-metal sealing

Compression: Ferrule-based fittings for tubes

ORFS: O-Ring Face Seal for leak-free connections

Quick-connect: Tool-free, fast-disconnect options

Hydraulic fittings are the smallest yet most sensitive hydraulic components—a single leak can compromise the entire system.