Hydraulic fittings are essential components that connect parts of a hydraulic system, creating a secure seal and ensuring the system’s proper operation. These fittings enable the hydraulic fluid to merge or split, and in some cases, special hydraulic fittings can alter the fluid’s direction. Additionally, fittings such as plugs can be used to terminate a hydraulic piping system and prevent fluid leaks.

Typically, Car Lift Repair Orlando hydraulic fittings are made of metal and designed to withstand various pressure specifications. Their common attributes include varying levels of corrosion resistance, wear resistance, and sealing capabilities, depending on the materials used. Most fittings are manufactured according to international standards, making them adaptable for a wide range of applications.

Hose Fittings  

A hydraulic hose fitting has two ends: one threaded and one for hose connection. The threaded end can be either male or female, with male ends featuring external threads that connect to female ends. The hose end is inserted into the appropriately sized hose and secured with clamps.


Car Lift Repair Orlando Adapters have threaded ports on both ends and come in male-to-male, male-to-female, and female-to-female types. The threads on either side of the adapter can be identical or different.

Tee and Cross  

Tee fittings have three threaded ends, while cross fittings have four. They are used to divert fluid in different directions; tee fittings split the fluid into two directions, and cross fittings into three.


Car Lift Repair Orlando Bulkhead fittings are designed to pass through a fixed wall or plate, connecting the fitting to other components. They are commonly used in bulkheads or tanks.


A reusable (field-attachable) hydraulic fitting features a threaded end and a hose end with a reusable sleeve. These fittings can be disassembled and reassembled multiple times for easy installation and removal.


Car Lift Repair Orlando One-piece fittings differ from reusable fittings in that they have non-removable sleeves. They are commonly available in the 43 series, 71 series, and HY series.

Plug and Cap  

A plug is a male-threaded fitting, and a cap is a female-threaded fitting. Both are used at the end of a pipe system to prevent fluid leakage or contamination.


Flange fittings, suitable for high-pressure environments, are bolted together to form a seal. They come in two main types: SAE Code 61 and Code 62 series.


A ferrule is a cylindrical metal fitting used with hydraulic hoses to secure the hoses and hose fittings.


Car Lift Repair Orlando JIC (Joint Industrial Council) fittings feature a 37-degree or 74-degree cone flare thread and are particularly popular in the U.S. These fittings create a metal-to-metal seal and do not require additional sealant.


BSP (British Standard Pipe) threads are more common in the UK and come in two types: BSPP (Parallel), which has straight threads, and BSPT (Tapered), which has tapered threads. Both types have 60-degree cones.


NPT threads, used in the U.S., include branches such as NPSM (National Pipe Straight Mechanical) and NPTF (National Pipe Tapered Fuel). NPT threads have a taper to create a metal-to-metal seal.


JIS threads are commonly used in East Asian countries, such as Japan. These threads feature a 30-degree cone, similar to BSP threads but not identical.


Metric threads, also known as DIN threads, have a 24-degree cone and are available in light and heavy-duty versions. These threads are widely used globally.


Car Lift Repair Orlando ORFS (O-Ring Face Seal) fittings use O-rings in flat grooves, providing high resistance to sealing and vibration.


AN (Army-Navy) threads feature a 37-degree flare, similar to JIC threads but not exactly the same.

Common Materials of Hydraulic Fittings

In Car Lift Repair Orlando hydraulic systems, metal fittings are the most commonly used due to their durability and strength. The type of metal fitting used varies depending on the environmental conditions, such as acidity or alkalinity, and the required pressure range.

The most common metals used in hydraulic systems are carbon steel, stainless steel, brass, and aluminum.

Carbon Steel  

Carbon steel, composed of carbon and steel, is the most frequently used metal in hydraulic systems. It is easy to process, pressure-resistant, and cost-effective, although it has lower corrosion resistance compared to other metals.

Stainless Steel  

Stainless steel is often considered the superior metal for hydraulic fittings due to its excellent resistance to corrosion, pressure, and abrasion. It is durable and strong but can be relatively expensive. 


Brass, an alloy of copper and zinc, is highly corrosion-resistant and easily machinable. It is commonly used in automotive, domestic, and industrial applications due to these properties.


Aluminum fittings are lightweight and moderately resistant to corrosion, making them suitable for low-pressure environments. They are commonly used in automotive and aircraft applications.

International Standards


These standards specify performance and dimensional requirements for hose fittings, flanges, and quick fittings.


The Society of Automotive Engineers (SAE) sets standards for hydraulic fittings and hoses to ensure dimensional accuracy and appropriate pressure resistance. Common standards include SAE J512, SAE J516, and SAE J514.


The Deutsches Institut für Normung (DIN) is a German standard that defines the thread, dimensional, and operational requirements for hydraulic hose fittings, compression fittings, and adapters.

Some well-known brands, such as Parker, Gates, and Eaton, have developed their own standards. Topa can accommodate various standards, so please contact us to discuss your specific needs.

Hydraulic fittings have a broad range of applications wherever hydraulic systems are in use. The need for various sizes, materials, and types of fittings depends on the specific environment and application. Common areas requiring hydraulic fittings include:

Agriculture: Tractors, harvesters, and irrigation systems rely on hydraulic adapters.

Industry: Most industrial equipment features hydraulic systems that require fittings to ensure proper operation.

Construction: Excavators, bulldozers, and other heavy machinery demand high-quality hydraulic fittings.

Oil and Gas: The transport and storage of oil and gas depend on leak-free hydraulic fittings.

Marine: Marine transportation and offshore oil wells need corrosion-resistant and strong-sealing hydraulic fittings.

Transportation: Many industries require hydraulic piping for the safe transport of pressurized fluids.