Hydraulic fittings are found across nearly every industry, with a wide variety of uses and applications. Different types of fittings are designed for different applications and specifications. It is important to be familiar with the different types of hydraulic fittings to determine the best one to suit your required application, hose size, and assembly.
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This article will explore what hydraulic hose fittings are, their applications, and the most common types, shapes, and materials they are made from. Understanding these key fitting types will allow you to make informed decisions when selecting the right fittings for your hydraulic system.
Quality industrial hydraulic hose fittings are a crucial component of any hydraulic system. Fittings allow hydraulic hoses to connect to various components and machines, and facilitate the transfer of hydraulic fluid and power.
Hydraulic fittings come in various sizes, materials, types of seals, and temperature and pressure tolerances. Some can allow or prevent the flow of fluids, and some can do both.
Because industrial hydraulic hose fittings serve a number of purposes, they can be used for applications in a variety of industries. Some of these industries include:
There are three main types of hydraulic hose fittings: the O-ring, the mated angle, and the tapered thread connectors. Other types are used in different and specialized applications, but those are the three most common.
A brief note on fitting gender descriptors: Conventionally, each half of a pair of mating connectors, or fittings in this case, is assigned the designation male or female. The female is generally the receptacle that receives and holds the male piece.
An ORFS seal fitting has an O-ring at the flat face of the fitting. The seal is achieved by connecting the O-ring with the flat face of the female connection.
ORFS are ideal for high-pressure applications and provide a leakage-free connection. They are secure, reliable, and can eliminate leaks in hydraulic systems that operate at up to 6,000 PSI pressure. ORFS are often preferred because they are less likely to be over or under-tightened.
These fittings have thread, followed by an angled plane (or taper) going around the whole fitting, referred to as the &#;flare&#;. The threads can be either straight or parallel.
The threads themselves do not form the seal; instead, they push the flares together. When the male and female are threaded together, the flares meet up and are &#;seated&#; or sealed together.
In a tapered thread fitting, the male has threads on the outside, and the female fitting has threads on the inside. The tapered thread deforms when they are threaded together. The consequent pressure on the couplings creates the seal.
Under high pressure, fluid may work through the threading over time, spiraling through the threads until it finds its way out. Plumber tape may be used to prevent this; however, the tape is prone to shredding and contaminating sensitive areas. Tapered threads are also prone to being over-torqued. These disadvantages often cause tapered threads to be prohibited for use in hydraulic and pneumatic systems.
Other important features of hydraulic hose fittings include how they attach to the hose, their shape, and the material they are made from.
Hydraulic fittings can be attached to hydraulic hoses in two main ways: crimped fittings and field attachable fittings.
Field attachable or reusable fittings have a socket and nipple, and can be installed anywhere without using crimping equipment.
Crimped fittings are permanently sealed with a crimping machine. Permanent hydraulic fittings are much more widespread than reusable fittings. They have a reputation for being the most secure and reliable fitting, and are widely used in the fluid power industry.
For more information, please visit hydraulic fitting manufacturers.
Permanent fittings require the use of a crimping machine. Crimping machines range from large workshop variants to more portable handheld devices. Portable crimpers have become very popular and are suitable for on-site use.
Hydraulic hose fitting shapes allow hoses and components to connect, change direction, and split or combine fluid. Here is a list of common industrial hydraulic hose fitting shapes:
There are many different materials for hydraulic hose fittings. The most common fittings are made with stainless steel or brass, though the material typically depends on the industry and application.
Let&#;s look at the most common materials in hydraulic fittings:
Steel is the most common hydraulic hose fitting material. It offers excellent strength and durability. Steel can withstand temperatures ranging from -65 degrees Fahrenheit to 500 degrees Fahrenheit.
Steel comes in various grades, mixing iron, carbon, and other metals (such as Chromium) to create tougher, more durable, or more corrosive-resistant metals. These fittings are used when the temperature rating requires ranges from -425 degrees to 1,200 degrees Fahrenheit.
Stainless steel is used for highly corrosive environments and can be rated up to 10,000 PSI, or even up to 20,000 PSI with special designs. Stainless steel hydraulic fittings are much more expensive than other materials but are the most reliable.
Fittings made of plastic are very corrosion-resistant but weaker and less durable than other materials. They are affordable but do not hold up to high-pressure ratings or high temperatures. Because of their low durability, metal fittings are preferred.
Brass fittings are less durable than stainless steel. However, they can meet the required SAE, ISO, DIN, DOT, and JIS standards.
Brass fittings can handle temperature ranges from -65 degrees to 400 degrees Fahrenheit. Brass offers excellent corrosion resistance and can handle up to 3,000 PSI, but lower pressure ranges are usually recommended.
Aluminum fittings are lightweight and very resistant to corrosion. Aluminum fittings are less prevalent and durable than steel, but the automotive industry has embraced them due to offering an excellent strength-to-weight ratio.
Industrial hydraulic hose fittings are essential for various hydraulic systems. Understanding the different types of fittings, the materials they are made from, and their typical applications is crucial for selecting the right fittings for your specific needs. Choosing the appropriate fittings ensures your hydraulic system&#;s safe and efficient operation, minimizing downtime and maximizing productivity.
The most important factors to consider when choosing the right hydraulic hose fitting include size, material, temperature range, and pressure requirements. You should also consider your application itself and what you need the fitting to do. Finally, if the fitting needs to be frequently connected and disconnected, you&#;ll need to find one with easily assembles and disassembles.
IBT&#;s Hose Division offers an unbeatable combination of quality hydraulic hose products and outstanding service. We maintain over a million dollars in inventory of industrial hoses, fittings, and accessories so that we have everything you need on hand.
Our KC Industrial Hose Shop can complete any custom hose assembly to your exact specifications. We can help you design and build a safe and efficient hydraulic system that best meets your needs.
Contact us for more information on hydraulic hose fittings, our hose division services, and our crimping station offerings. You can also shop for hydraulic hose fittings and products directly on ShopIBT.com!
Why do you need hydraulic fittings? Hydraulic fittings are connection components used to connect tubes and equipment in hydraulics. They allow gases, liquids, dust, and semi-solids to pass safely through the hydraulic products.
Different hydraulic systems require different types and standards of fittings, resulting in a variety of fittings with unique appearances, threads, and benefits. Proper use of these fittings is essential to ensure the hydraulic system operates normally.
This article will describe the types of hydraulic fittings in detail, so please continue to read.
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