Hydraulic fittings, also called hose fittings, are essential components used in hydraulic systems to connect, control, and direct fluid flow between different hydraulic components, such as pipes, hoses, pumps, valves, cylinders, and other equipment. They also serve to divert or change the direction of fluid flow, depending on the fitting types. Hose fittings are critical for ensuring leak-free and efficient hydraulic system operation. A hydraulic fitting should withstand high pressures and provide secure sealing connections, preventing fluid leakage and system failure.
Furthermore, hydraulic fittings come in either male or female connection threads for sealing. They come in hydraulic couplings, adapters, unions, elbows, and reducer types based on users' intended requirements. Additionally, they are typically made of rugged stainless steel, plastic, or brass materials, ensuring versatile applications in the long run. Enrgtech stocks broad collections of flexible and high-quality hydraulic hoses and fitting assemblies of varied threads, sizes, materials, and pressure ratings.
Popular Types (Threads) of Hydraulic Fittings
Hydraulic fittings come in various thread types, each serving a specific purpose and application in particular settings. Some of the most common types include:
- NPT (National Pipe Thread) – These are tapered threads used in most general-purpose hydraulic fittings for pipes and hoses.
- JIC (Joint Industry Council) – JIC fittings have a 37-degree flare on the fitting end, providing reliable sealing in hydraulic systems.
- SAE (Society of Automotive Engineers) – SAE fittings are suitable for high-pressure applications and feature a 45-degree flare.
- ORFS (O-ring Face Seal) – ORFS fittings use an O-ring to provide a leak-free seal between the fitting and the component.
- Metric Fittings – Common in international applications and use metric thread sizes.
- Bite-type Fittings – These fittings are equipped with a sharpened ferrule that bites into the tubing, creating a secure connection.
- Flange Fittings – Used for large-diameter hoses and high-pressure applications, providing a robust and reliable connection.
- Quick-Connect Fittings – Providing rapid and tool-free connections, ideal for applications requiring frequent disassembly.
Selection Criteria for Hydraulic Fittings
When selecting hydraulic fittings, it's essential to consider various factors to ensure proper functioning and safety within the hydraulic system. Some of the crucial parameters to consider include:
- Pressure Rating
- Thread Type
- Size
- Intended Application
- Assembly
- Temperature Range
- Material Compatibility
- Cost and Brand.
Typical Applications of Hydraulic Fittings
Hydraulic fittings are extensively used in various applications, systems, and equipment in industrial facilities, such as:
- Construction Machinery/Equipment
- Agricultural Equipment
- Plumbing and Assembly Lines
- Oil & Gas Industry
- Robotics & Aerospace
- Automotive Industry
- Marine Applications
- Heavy Machinery
- Mining Equipment.
