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Rubber Hose

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Professional Technical Team
We have 10 engineers and quality inspector have 20 years work experience. This provides a reliable quality assurance for our products. We have R&D team with capability of indenpendently researching, designing, and developing hydraulic systems to meet different customization demandsWorking with simple and complex hydraulic applications, you will always have special needs.

Wide range of applications
Our factory is committed to developing and manufacturing hose fittings, hydraulic fittings, hose assemblies and other related products that are widely used in mining, machinery, transportation, ships, oil fields and other fields. Is a leading manufacturer and supplier of hydraulic hose fittings in China.

Customization
Our R&D and Engineering team will support your customization needs by understanding your ultimate goal; designing, practicing, and testing the solution before delivery; We provide service and solution tailored to your needs. We make it happen, from an "idea" to an "application". Or alternatively, we welcome your drawings and designs. We relying on our experience, will study and improve to make it best suit your needs.

Professional service
We follow a strict manufacturing and service concept, that is; "quality first, stick to integrity" coupled with a "second to none" service department which bolsters excellence and quality known around the world. We strive everyday to keep our reputation as a "first-class" enterprise.

Definition of Rubber Hose

Rubber hose is widely used in conveying systems for both pipeline and bends and in systems where a degree of natural flexibility is required. Its particular properties also make it ideal for use in systems where the material being conveyed may be friable, abrasive, or cohesive. Its natural flexibility makes it ideal for use in vacuum off-loading applications, mobile conveying systems, and for joining pipeline sections in situations where standard pipeline bends will not match the geometry required.

Rubber Air Hose

Rubber Air/Water Hose. Tube: black, smooth, synthetic rubber. Reinforcement: high tensile synthetic yarn braided or spiraled. Cover: black or red, smooth (wrapped finish) synthetic rubber, abrasion,

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Lpg Hose

CNG/LPG HOSE. • Surface: Black, Smooth, Nitrile rubber. • EN/DIN and new SAE rated working pressures. • Appearance: Wrap（ I.D less than 25.4mm smooth cover)Outer rubber can be made pinhole according

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Rubber Water Hose

Construction of Water/Air Hose. Tube: black, smooth, synthetic rubber. Reinforcement: high tensile synthetic yarn braided or spiraled. Cover: black or red, smooth (wrapped finish) synthetic rubber,

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Fuel Oil Hose

Fuel Oil Hose. Tube: black, smooth, nitrile rubber . Reinforcement: high strength polyester fiber braided or spiraled. Cover: black, smooth (wrapped finish) synthetic rubber, abrasion, weather and

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Oxygen Acetylene Hose

Oxygen Acetylene Hose. Tube: black, smooth, synthetic rubber. Reinforcement: high tensile synthetic yarn braided or spiraled. Application: suitable for transporting oxygen/acetylene welding, welding

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Twin Welding Hose

Twin welding hose. Tube: black, smooth, synthetic rubber. Reinforcement: high tensile synthetic yarn braided or spiraled. Cover: blue and red, smooth synthetic rubber, abrasion, weather and abrasion

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Benefits of Rubber Hose

Flexibility and versatility
Rubber hoses are known for their exceptional flexibility, allowing them to bend and maneuver easily in various applications. This versatility makes rubber hoses suitable for use in diverse industries, including automotive, construction, and agriculture.

Durability and longevity
Rubber hoses are designed to withstand harsh conditions, making them highly durable. They can resist extreme temperatures, chemicals, abrasion, and impact, ensuring a longer service life compared to other hose materials.

Excellent resistance
Rubber hoses possess excellent resistance to oil, water, ozone, uv rays, and other environmental factors. This resistance enables them to maintain their integrity and functionality even when exposed to challenging conditions, such as exposure to sunlight or contact with corrosive substances.

Superior sealing properties
Rubber hoses offer exceptional sealing capabilities, preventing leaks and maintaining a reliable flow of fluids or gases. The flexibility and elasticity of rubber enable it to create a tight seal, minimizing the risk of contamination or loss of pressure.

Why Is It Critical to Keep Rubber Hose Assemblies Clean?

A dirty or contaminated rubber hose assembly can lead to equipment failure, decreased productivity, and even safety hazards for personnel. These risks include but are not limited to
Corrosion. This can cause leaks, clogs, or other types of damage that can lead to system failure.
Reduced Efficiency. Contaminants can clog or restrict the flow of fluid, reducing the efficiency of the system. This can result in increased energy consumption, decreased productivity, and increased wear and tear on system components.
Component Damage. Contaminants can also cause damage to system components such as valves, pumps, and cylinders. Over time, this damage can lead to the need for expensive repairs or replacements.
Safety Hazards. Contaminants can also create safety hazards for personnel operating the hydraulic system. For example, if the hydraulic fluid becomes contaminated with a combustible substance, it can pose a fire hazard.
To keep these systems running smoothly and efficiently, it's important to properly clean the inner lining of rubber hose assemblies. This includes brand-new hoses before they are installed into the system.

How to Choose Rubber Hose?

If you're in the market for a new or replacement rubber hose, the best way to determine which hose your application requires is to use:

Size

Accurately sizing up the diameter needed for the hose to contain the correct amount of fluid will ensure that it is capable of performing at the required operating pressure.

Temperature

It's important to consider both the temperature of the fluid that will be contained in the hose and the temperature outside of the hose, to ensure the materials can withstand the conditions and have a greater lifespan.

Application

Consider the environment in which the hose will be operating in, the type of equipment being used, and the specifications it needs to comply with.

Media

The hose selected must be compatible with the fluid that will be housed in the inner tube, to ensure optimum performance and prevent abrasion or corrosion.

Pressure

Accurately calculate the working pressure required, and select a hose with a maximum working pressure that either exceeds or matches the operating pressure of the system.

How Is Rubber Hose Manufactured?

Unlike tubes and pipes, rubber hose consists of three basic elements: Inner tube, reinforcement, and the outer cover. The inner tube maintains a flexibility while also being able to withstand the material it carries. For example, nitrile has excellent compatibility with oils and standard hydraulic fluids. The reinforcement surrounds the inner tube and gives the hose strength, as well as the ability to hold pressure.

The capabilities of rubber hoses depend on the material they are made of and the environment they are used in. For example, rubber hoses are known for their flexibility and durability, while flexible metal hoses resist high temperatures and pressure.

The benefits of rubber hoses include durability, flexibility, and cost-effectiveness. They are designed to withstand harsh environments and can last longer than other types of hoses. Rubber hoses are also flexible hoses, making them easier to install and use. They are also cost-effective, as they can be used for various applications.

How Long Do Rubber Hoses Last?

Rubber hoses have a limited lifespan and will eventually need to be replaced. rubber hoses are susceptible to a number of common defects, which can make them more difficult to repair. In most cases, it is best to replace a rubber hose that is damaged.
The lifespan of a rubber hose depends on a number of factors, including:

The type of rubber hose
The environment in which the rubber hose is used
The amount of use the rubber hose receives

In general, rubber hoses should be replaced every three to five years. However, this can vary depending on the factors listed above. It is important to inspect rubber hoses regularly for signs of wear and tear. Hoses that are damaged or showing signs of wear and tear should be replaced as soon as possible.

How Can I Tell If My Rubber Hoses Need Replacing?

There are 4 common indicators that a rubber hose needs replacing, these can be found easily on a quick inspection of the vehicle:
Kinked hose
Rubber hoses usually kink because they've been rolled, looped up or bent at angles that they shouldn't have bent to. Rigid hoses also kink more readily if they are old. Kinks can lead to cracks and leaks as well as impeding the flow of liquid and occasionally causing the hose to blow apart from the fitting or cause swelling and then eventually bursting.
A kinked hose can be fixed on some occasions depending on how bad it is kinked, we always recommend taking the hose off and inspecting this once found to check if any additional damage such as cracking has been caused, then re apply hose for the application. Sometimes the damage has already occurred and the hose will need replacing.

Brittle hose
The main cause of a rubber hose becoming stiff and brittle is due to overheating, overtime the heat will cause the material of the hose to breakdown and in turn loose its "flexibility". You will be able to feel a hose hardening from the outside and then becoming brittle, this then causes the hose to crack which will weaken the walls of the hose leading to potential leaking/bursting.
Once a hose has become hard and brittle there is no way of saving the hose at this stage, we always recommend replacing the hose as leaving it will only cause further damage.

Surfaced cracks
All rubber hoses are susceptible to wear and tear, mainly due to heat exposure. As the hose is heated and cooled over and over again, it loses its elasticity and becomes brittle which then leads to cracking.
They can be temporarily reinforced with duct tape or something similar to allow you to reach a mechanic for a professional replacement. Driving with cracked hoses is an invitation to disaster – a blown radiator hose can leave you stranded on the side of the road. A cracked hose can also cause the temperature in your engine to rise so much that it actually damages the engine.

Bulged hose
There are four main causes for a rubber hose to become swollen. The first is putting too much pressure through the hose, doing this will cause the pressure to build up inside the hose and created a bulge.
Second, hoses are subject to wear from the inside out. If the interior of the hose has been worn away, it may look fine to a casual observation, but the wall thickness has become very thin which can cause bubbles or blisters.
Third, hoses can become swollen when exposed to very high heats. If your engine has overheated (due to a stuck thermostat, low coolant or for some other reason), it's possible for superheated coolant to swell the hose.
Finally, rubber hoses can kink and when they do they are not allowing everything to flow freely through the hose causing a backup, which this backed up pressure will swell the hose.
A blown hose can't be saved as this runs a high risk of bursting (if it hasn't already), this needs replacing as soon as possible.
Hoses can last a long time (long than recommended by the manufacturer), however it always best practise to spot these issues early on before they can get considerably worse and potentially cause damaged to your engine. At a point like this, you may want to consider replacing the standard rubber hoses for silicone ones. For more information in regards to this please our what difference do silicone hoses make blog post.

Our Factory

About LOMOFLEX CO., LTD founded in 2011. Our factory is committed to developing and manufacturing hose fittings, hydraulic fittings, hose assemblies and other related products that are widely used in mining, machinery, transportation, ships, oil fields and other fields. Is a leading manufacturer and supplier of hydraulic hose fittings in China.

At our "state-of-the-art" manufacturing facility, our factory specialize in producing many kinds of hydraulic hose, industrial hose, hose reinforcement steel wire and hose fittings Etc. We have 10 engineers and quality inspector have 20 years work experience. This provides a reliable quality assurance for our products. We also export to many countries and regions such as North America, South America, Europe, Southeast Asia, the Middle East, Africa and other strategic locations world-wide.

Our number one goal is to provide the highest quality products with top-notch customer service.
We follow a strict manufacturing and service concept, that is; "quality first, stick to integrity" coupled with a "second to none" service department which bolsters excellence and quality known around the world. We strive everyday to keep our reputation as a "first-class" enterprise.

Ultimate FAQ Guide to Rubber Hose

Q: What is a rubber hose?

A: Rubber hose is widely used in conveying systems for both pipeline and bends and in systems where a degree of natural flexibility is required. Its particular properties also make it ideal for use in systems where the material being conveyed may be friable, abrasive, or cohesive.

Q: What is the rubber hose problem?

A: Rubber hoses aren't designed to fit snugly on connectors and connecting points. A small amount of constant leakage occurs. Rubber hoses create safety hazards. The material cannot withstand highly pressurized air. It could burst and injure the operator, or anyone within the vicinity of the compressor room.

Q: What is the manufacturing process of rubber hose?

A: The manufacturing process typically involves the extrusion of thermoplastic polyurethane around a mandrel to create a smooth, continuous tube. Reinforcement, if needed, is applied, and an outer layer of polyurethane is extruded if additional protection is required.

Q: What is rubber hose used for?

A: The term, "rubber hoses" refers to a wide range of hoses used to transfer things like liquid chemicals, water, waste gases, production materials, dust, debris, and much more. Among many things, Rubber hoses are sometimes referred to by their designs, materials, and applications. The designs and materials may vary across industries, but applications are often similar. The following are a few popular types of hoses based on their application.

Q: How do you cut a rubber hose?

A: Steel blades are a cleaner, more effective way to cut hose. The circular blade slices the hose rather than cutting a path through it, so it does not leave debris in the hose. The cutting operation set-up causes the hose to be bent, applying tension to the hose so that it pulls away from the blade during the cut.

Q: How do you clean rubber hoses?

A: There are three common cleaning methods for hydraulic hose assemblies: air, fluid flushing, and projectiles. Each one has its uses and disadvantages, depending on the contamination level. Air cleaning involves using compressed air to blow out any debris or contaminants from the inside of the hose assembly.

Q: What is the most common rubber hose diameter?

A: Size and flow rates. Hose diameters range from 3/8-inch, 1/2-inch to 3/4-inch. In the United States, most standard Rubber hoses are 5/8-inch in diameter. The bigger the diameter, the more water is delivered. The bigger the diameter determines how much hose can be put on any of our water hose storage products.

Q: What do the numbers on a rubber hose mean?

A: Dash numbers denote hose ID in sixteenths of an inch. A hose of ¼" ID is classified as -4 (4/16). A hose with ½" ID is a -8 (8/16). The exception to this is the SAE100R5 hoses C5C, C5D, C5E and C5M, as well as C14 PTFE hose and AC134a Refrigerant hose, where dash sizes denote hose ID equal to equivalent tube OD.

Q: What are the grades of rubber hoses?

A: Rubber hoses meeting ISO 18752 specifications are classified according to their resistance to impulse pressure in four grades: A, B, C, and D. Each grade requires a specific number of impulse cycles at a certain temperature and impulse pressure in order to meet the standard.

Q: What is the end of a rubber hose called?

A: Fitting Ends And Connector Types. The three most common fitting ends and connector types for hydraulic fittings are the O-ring, the mated angle, and the tapered thread connectors. Although these are the most popular choices, several other types are used in different and specialised applications.

Q: How to identify a rubber hose?

A: The fluid power industry uses a system of measurement called Dash Numbers or Dash Sizes to identify hose and fitting size. The Dash Number is the measure of a hose's Inner Diameter (I.D.) in sixteenths of an inch. (See the chart on the Dash Number page for complete details and exceptions.)

Q: What is the difference between industrial and rubber hoses?

A: Rubber hoses are designed for specification applications that are not hydraulic. Rubber hoses are best suited for the transfer of materials that are not hydraulic oil. Rubber hoses typically operate at lower pressures, and are available in a greater range of sizes.

Q: How to specify a rubber hosee?

A: The working pressure and inside diameter are good starting places. A hose must be chosen with a maximum working pressure rating that is above the maximum pressure of the hydraulic system. Momentary pressure surges or pressure spikes should not exceed this rating either.

Q: What are the three layers of a rubber hose?

A: Standards for Rrubber hoses. The typical hose is composed of three layers. These include the inner tube, a reinforcing middle layer, and a protective outer layer. The design and material used for the inner layer must be engineered to the level of flexibility required and the type of fluid to be used.

Q: What are the classification of rubber hoses?

A: You've essentially got three options: rubber with metal wires, thermoplastic with textile reinforcement, or Teflon with stainless braid. There are a few other application specific specs out there, and we'll talk about them in a bit, but, really, those are your three options. After you know which you need, the rest kind of sorts itself out.

Q: What are the advantages of rubber hose?

A: Rubber hoses are designed to be flexible, allowing for efficient movement of the machine while still being able to withstand the high pressures involved in hydraulic systems. The construction and reinforcement of Rubber hoses are critical to their ability to handle high-pressure and heavy-duty applications.

Q: How many years do rubber hoses last?

A: Typically, a rubber hose's lifespan is about five to six years, with some lasting as long as ten years. The best way to tell if your hose is at the end of its lifespan is if it's become brittle and prone to cracking.

Q: How do you cut a rubber hose?

Q: How do I identify a rubber hose?

A: The best way to check is to measure the taper angle or screw a known fitting into the hose. You can also check thread pitch and diameters to confirm things. Identify whether they are male or female threaded fittings. Identify the thread as BSP, Metric or JIC flare etc. Identify the thread size.

Q: Does the diameter of a rubber hose matter?

A: Here's the thing to remember about rubber hose dimensions: A larger diameter of hose carries more water per minute. A larger diameter hose can also be useful in handling differences in water pressure. For example, if you are pushing water uphill through a hose, it will be more beneficial to use a large diameter hose.

As one of the most professional rubber hose manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to wholesale rubber hose in stock here and get quotation from our factory. Contact us for customized service.

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