Choosing Hydraulic Fittings

The proper hydraulic fittings for your application must be compatible with the hose, fluid, or gas you intend to use. If not, mishaps can occur, including fires, explosions, or toxic fumes. Check your hydraulic fittings frequently to ensure they are compatible with the products you’re using. These tips can help you choose the right hydraulic fitting for your needs. Read on to learn more. Here’s a quick overview of the various types of hydraulic fittings.

Stainless steel

Stainless steel hydraulic fittings have several advantages over carbon steel and brass. They are corrosion resistant and lightweight, and can be alloyed with other metals to increase strength. Additionally, they are much stronger than brass, and can withstand greater pressures than carbon steel. Stainless fittings can be made with external plating to increase their life span in environments with high pressures and temperatures. This makes them a good choice for applications where weight is an important consideration.

QC Hydraulics offers stainless steel hydraulic fittings that meet the norms set by SAE, JIS, and DIN standards. Stainless steel is an alloy steel that contains 10.5% chromium and offers exceptional chemical and corrosion resistance. QC Hydraulics’ stainless steel fittings are manufactured with high quality stainless steel and can be supplied with 3.1 inspection certificates. They are also available with quick release couplings and valves to meet any specific needs.

Stainless steel is the most popular material for hydraulic fittings because of its superior corrosion resistance and high strength. This metal is used in most hydraulic systems. While plastic is cheaper and less resistant, it is not suited for high pressures or extreme temperatures.


The hydraulic fittings O-Ring is a key component of these components. The OE-Ring is made of silicon carbide, which is extremely hard. It is ideal for use in a variety of applications, including high-pressure hydraulics. It is available in a variety of sizes, including metric and imperial. O-rings are available in both flared and flareless varieties. Some of them have different features, including a flared or tapered end or a swivel or adjustable design.

When choosing an OE-Ring, it is important to determine its use. Some applications require ultra-high vacuum, and others require only low vacuum. The proper selection depends on the application, as it can help extend the life of the machine. While most OE-Rings are flexible, some may be rigid. This is not a problem, however, if the OE-Rings are designed to seal a wide variety of fluids.

The OE-Ring Face Seal is one of the most popular types of hydraulic fittings. This prevents the tube from twisting and supports it during the assembly process.

Mated Angle

When coupling hydraulic fittings, there are many types of mated angle seals available. Each type has different technical features and physical dimensions, but they all form a tight seal. These mated angle seals are based on the type of threads, which are usually straight or parallel. There are three main types of mated angle seals: O-Ring, mated angle seal, and mating angle seat.

Hydraulic fittings with a mate angle are the most common. These types are available in different sizes, thread types, and configurations. The thread types of mated angle fittings are straight, parallel, and angled. The three types of threads are JIC 37-degree, SAE 45-degree, and BSP.

The types of hydraulic fittings used vary in physical dimensions and thread forms, which make them difficult to identify. If you’re unsure which fittings you need, use a process of elimination after you’ve removed the original one.

Before using split flanges, make sure the female of the NPSM or BSPP has a proper seat angle. This allows you to easily install them into existing systems. To install the fitting, be sure to tighten the bolts evenly. The improper torque could cause the O-ring to come out.

Tapered Thread

There are two main types of thread in hydraulic fittings: the parallel and tapered. The threads on the male end of the fitting are symmetrical while the thread on the female end is asymmetrical. They form a positive or non-positive seal. The tapered thread is an older design, more commonly found in farm equipment and older systems.

A common tapered thread is the BSPT. NPTF is similar, but the BSPT thread is less common in industrial applications. These threads are more rigid than straight threads and have a larger diameter. Fortunately, many manufacturers offer both straight thread and tapered thread versions. This way, you can be sure that the connector you purchase will work properly in your application. Just be sure to read the manual carefully before ordering.

Threaded pipes are the best choice for ensuring the seal between a hose and a hydraulic system. Threaded pipes provide reliable seals for hydraulic fluids. Whether you’re using NPT pipe threads or BSPT threads, there’s a suitable tapered thread for your application. A high quality hydraulic fitting will last a long time, and you’ll appreciate the savings you’ll make.

O-Ring Face Seal

O-Ring Face Seal (ORFS) hydraulic fittings are a common choice for applications requiring leak-free connections. They offer a variety of benefits, including a wide range of sizes, a range of operating pressures, and a wide range of end styles. The fast-seal nut makes it easy to connect ORFS tubes without flanging or brazing.

In either case, the adjustable end contains a locknut, backup washer, and o-ring. A locknut and backup washer form a leak-tight seal, but there are several things to consider when using an ORB.

When designing a hydraulic system, leak prevention is always the first step. Proper selection of components is essential to reducing the number of connections and leaks. O-Ring Face Seal Fittings are often the best option, but sometimes they may not be practical. A wide variety of O-Ring Face Seals will ensure your hydraulic system is leak-free for years to come.

Size based on size of conductor

Hydraulic fittings are a common source of confusion for many people. In reality, these components are simply pieces of metal that fit into the ports on major components. Often made of machined steel or forged steel, these components include threads corresponding to the port size and the type of hose.

The most important factor to remember when selecting a hydraulic fitting is its size. While there are several ways to size a hose, they all have different inside and outer diameters. The inside diameter measures the diameter of the cylinder and the outside diameter is the thickness of the tubing wall.

If the size of the conductor is the only criterion for determining a fitting’s size, then it is best to choose a fitting with a large enough diameter. Otherwise, it may not fit in the first place. For example, if the size of a conductor is larger than two inches, a two-inch fitting is probably more appropriate.

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