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Stainless Steel Braided Hose: Eerything You Need to Know

06 May.,2024

Stainless Steel Braided Hose: Eerything You Need to Know

Stainless steel braided hose also called flexible, corrugated, or stainless steel hoses. They are standing there to cover rubber hoses every weakness. Designed to add strength, these types of metal hoses are undoubtedly one of the most critical, and vital elements in every industry. Mainly metal hoses are constructing from Stainless Steel for the least permeation and absorption. Due to the flexible metal hose’s versatility, you may find the hose selection hard and tricky. You must outweigh every option out there, and make the best decision for your requirements. In this article, we will walk you through every different aspect of flexible metal hoses to give you an insight into making the best choice.

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Stainless Steel Braided Hose Structure

Generally, hose assembly consists of three main parts: Corrugated hose, braided hose, and end fittings.

The corrugated hose is on duty for bearing pressure, and prevent leakage. The hose inner tube is from stainless steel sheets. Sheets are rolled into tubes and seam welded. Upon tube completion, corrugations forming evenly across the entire hose length. Corrugations come into two types:
annular and helical corrugation.
Hose braiding supports hose radial movements and longitudinal absorption as a result of inner pressure. The stainless steel braid is woven firmly over the entire outside surface of the corrugated hose. There are two types of braiding: single braid and multiple layer construction.
Finally, the hose fittings providing the hose connection to the industrial equipment.

Flexible Metal Hose Advantages

There are several reasons that you would find flexible metal hoses a perfect choice for your industrial requirements. Stainless steel braided hose offers excellent benefits in comparison to their rubber alternatives. At first glance, they are super flexible, completely safe, simply adapting with any hose connections, and constructed from high-quality materials. Furthermore, we will dig deeper into other advantages of the flexible braided metal hoses in detail.

Temperature Range

On account of the material, stainless steel braided hoses can withstand extremely high and low temperatures. Furthermore, due to stainless steel technical characteristics, these hoses have a perfect range of chemical compatibility. This is true that metal hoses perform safely under a wide range of temperature, but you should keep in mind that every flexible hose must be used within the recommended temperature range to prevent any failures.

Permeation

in contrast to rubber or PVC hose alternatives, flexible metal hoses allow no permeation either outside or inside. This means that there will be no way that the conveying fluids get polluted or lost due to permeation. Metal hoses convey fluids clean and safe so, if you are worried about fluids or gas since they are expensive or toxic, then the metal hose is the right choice for you.

Chemical Compatibility

Thanks to stainless steel technical characteristics, flexible hoses are compatible with a diverse range of chemicals as well as oil and steams. They transport different kinds of gases such as air, steam, natural gas. Also delivering liquids like water, oils, and, chemicals and solutions.

Expansion

The stainless steel metal hoses can’t expand. As a result of this great advantage, the hose is not going to break or tear under any circumstances. This simply means less replacement of parts and no fluid, gas, or liquids loss.

Fire-resistant

Metal hoses are very safe and reliable in fire systems due to their metal construction. They maintain integrity up to 1200 °F and potentially prevent catastrophic hose failures.

Full vacuum

Metal flexible corrugated hoses are the best option when it comes to those applications requiring a full vacuum. These hoses are a great solution for full vacuum and high-pressure applications while other alternatives may collapse under the same circumstances.

Abrasion-resistant

The entire length of the metal hose is wrapped tightly with stainless steel braiding. Hoses are provided with single, double, or multiple layers of stainless steel braiding that protect the hose against abrasion.

Fitting Configuration

Stainless steel braided metal hoses are compatible with a wide range of fittings. Moreover, they don’t require any shanks or collars comparing to other hoses. No matter if the end connection is welded, braized, or soldered they match with all types of fittings. This adaptability with a large number of different connections enables a diverse range of applications for metal hoses.

Long Life Span

Metal hoses have a long life span and require little maintenance. In most cases they last as long as the system they are used in. this advantage makes the metal hoses stand out among other rubber or PTFE hoses that have a limited life span.

Comparing to rigid or rubber hoses, flexible metal corrugated hoses are flexible so they perform easier in routing. They have a long life span, very durable, and withstanding extreme temperature range while compatible with chemical substances and a wide range of end connections. Lightweight with high strength while resisting fire, abrasion, penetration, and moisture. Metal flexible hoses are flexible alternatives to rigid hoses in confined and difficult places. These are the metal hose’s main privileges over rubber or PVC alternatives. Make sure to consider them before making your final decision for industrial hose selection.

Centre Point Hydraulic offers the best flexible Metal hoses at a competitive level. We offer Corrugated Metal Hose, Single Braid Metal Hose, and Double Braid Metal Hose . Furthermore, you need people to work with you to get your operation up and running. Since our success hangs tight to our customer’s success and due to complete Adherence to our motto “ Helping Customers Compete and Thrive“ we won’t let you be alone along the way. We have your back and ready to solve any challenge you may encounter. With the help of our dedicated teams of engineers, sales, and customer service representatives who are constantly, striving to make doing business with us an enjoyable experience

Centre Point Hydraulic maintains the complete inventory of Metal Pipes in the Middle East and Africa, ready to ship to meet your company’s needs. Furthermore, we can provide you with a free consultation and quotation through +971 4 885 6150 or centrepoint@cp-dubai.com.

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Braided Hydraulic Hoses Versus Spiral: Which to Use?

Braided Hydraulic Hose

Wire braided hydraulic hose incorporates one or two high tensile steel wires which are woven and crossed to overlap each other over a synthetic rubber or elastomeric hose. The wire braiding is performed on machines which wind the wire in a crisscross pattern around the hose. This type of overlapping braiding of the wire allows for flexibility to make tight bends and significantly improves burst resistance. Unlike spiral wound hose, braided hydraulic hoses withstand more tensile stress, allowing it to achieve these tighter bend radiuses.

Braided hose is the most popular hydraulic hose, primarily due to its excellent strength and flexibility. While available in an extensive selection of pressure ratings and sizes, the pressure rating is reduced with increases in inner tube ID. This equates to the hose having a four to one safety factor, with working pressure rated at a quarter of burst pressure.

Spiral Wound Hydraulic Hose

Spiral wound hydraulic hose is more rigid, commonly used in high pressure applications and where there are no significant space limitations that require the hose to be overly flexible. A spiral wound hose comprises of four or six wires depending on the application, helically wrapped and stacked on top of each other, rather than wound like a braided hose. Spiral hose incorporates high-tensile wire which provides the hydraulic hose with exceptional strength, yet it is also very inflexible, with a minimum bend radius. However, a smaller diameter allows for a tighter bend radius.

For instance, a small diameter spiral wound hydraulic hose can operate at 3000 PSI with just one layer of spiral, making it inherently flexible. Where a larger diameter hose may require four layers of spiral wire to handle 3000 PSI, which will make it very rigid with a highly reduced bend radius, resulting in less routing flexibility.

Spiral hydraulic hose has an extremely high resistance to pressure spikes, which is required for many large diameter, high-pressure applications.

Braided versus Spiral: What to Choose

It really comes down to gains and losses. If the application calls for very high-pressure hose that will experience higher impulses, then a spiral wound hose is the best choice. But you will sacrifice flexibility and make it difficult to build a system in a small space or connect to (devices) that have frequent articulating movement, such as a backhoe or robotic arm. In these applications, braided hose may be the best choice. In fact, according to Tech Briefs: “Robotic system designers should choose the right power source for the job. Often, electric motors are chosen without thinking about the benefits of hydraulics or pneumatics. For applications where precise control of large forces and smooth motion are required, or applications that require “forgiveness” in the motion, fluid power can deliver significant benefits compared to electromechanical motion.”

Take the example of using the same hose construction type in a braided hose, and then in a spiral wound hose, where flexibility is reduced as the diameter increases.

A ¼ inch ID 1-wire braided hose that’s rated for 3200 psi has a very flexible bend radius of 1 ½ inches. However, the same hose type that has a 1-inch ID and is rated for 1300 psi, has a drastically reduced bend radius of 5 ½ inches.
In the case of spiral hose, a ¼ inch ID would be rated for 5100 psi and have a minimum bend radius of only 5 inches, compared to the 1 ½ inches for a braided hose. And where the 1-inch ID spiral wound hose would still have a pressure rating of 5100 psi, but at 1 inch ID has a minimum bend radius of only 12 inches. It’s almost like bending a thick steel pipe. You’ll only get so much bend before it cracks. Yet, the spiral hose clearly can withstand much higher pressures and pressure spikes.

Choosing the Wrong Hose Type Can Cause Catastrophic Failure

Selecting the wrong hydraulic hose or improper installation and configuration can cause catastrophic failure. And it can happen almost immediately. If the minimum bend radius exceeded, or 1 or 2 braided hose is used under very high pressure, where a 4 or 6 wire spiral hose was the right choice., this can lead to leaks at the bend or cause the hose to burst. In either case, dangerous fluid can be quickly expelled causing damage to equipment or personnel.

Always check the manufacturer’s recommended bend radius and route the hose in a way that does not exceed the recommendation. If the hose bend radius is exceeded while in a suction or vacuum, it will likely become flat in the area of the bend, restricting flow, or even causing the hose to kink. It’s like bending a kink in your garden hose, but much worse something has to give.

Conclusion

Braided hoses are used in low to medium, less intensive pressure applications such as engines, hydraulic lifts and return lines. Spiral hoses are best for higher pressures and frequent pressure surges such as in hydrostatic drives, large off-road earth moving dump trucks or mining excavators. Simply put, braided hoses are ideal for high pressures requiring tight bend radius, where spiral hoses are best for extremely high pressure, high impulse applications.

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