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Home › Pneumatic Accessory

Pneumatic Accessory

Compressed Air Hose

Posted by: Admin

What's the compressed air hose?

Compressed air hoses are refered to all of the tubes and hybrid hoses which are adopted to transfer the compressed air in different environment! In order to satisfy the different application’s request, the vendors had developed lot types air hose. Such as the PU tube, a widely adopted air hose in the industry field. They are durable, cost-effective, suitable for most of application.

They are the main transport method to supply compressed air to final tools or equipment, such as cylinders, vacuum pumps as well as jackhammers, staplers and impact tools etc.

How many types compressed air hose there are?

In the past ten years, we had developed eight main groups of compressed air hoses, they are all developed with a different type of material or composited by several types material.

Polyurethane (PU): the widest range of hoses. These hoses combine flexibility with good chemical processing ability, resulting in a package of specific properties.

Rubber Compressor Hoses: are made of durable rubber material, which makes them resistant to abrasion and weather conditions.

Polyethylene (PE) Hose: PE materials are generally resistant to most ordinary chemicals. This properties with a sharp price-quality ratio make it a best choice for manufacturers in the food and beverage industry, where FDA compliance is vitally important.

Hybrid Hoses are a combination of rubber and PVC materials with the Nylon wire network be stuck in the middle of two layer. Normally could suffer 3.0 Mpa pressure.

Polyamide Hose (Nylon-PA) Nylon is the name of a family of synthetic polymers that are commonly used to make a variety of different types of apparel and consumer goods. Nylon hoses can be used at higher working pressures and higher temperatures.

High Pressure Air Hose Max 30Mpa: is combination of outside PVC layer and inner rubber layer. And braided steel wire network layer stuck in the middle of two layers.

PTFE (polytetrafluoroethylene) hose: PTFE’s other name is Teflon, a well known mateiral used in lots of industry and household equipment. PTFE hose has stable chemical properties and physical properties even in the high temperature.

Hose PFA (perfluoroalkoxy): PFA a kind of fluoropolymer resin. PFA hose is designed for a wide range of corrosive-resistant applications. And with good performance in the extreme temperature environment (-300°F to 500°F).

Fluororubber Spray Hose Made of Fluororubber, with polyester fabrics sheath protecting the hose. Resist the organic solvent and be antistatic.

Instruction of the different materials air hose

Polyurethane (PU) Hose

PU Hose in rolls

PU hose is the most common air hose. They are ideal for a wide range of applications. It offers kink resistance, with minimum kink memory. The environment temperature range : 55°C to minus 40°C . For most of the automatic system, the factories and workshops, it’s the best choice to transport the low pressure air (0-100 Psi).

Coiled PU Hose

Coiled PU hose is made of obtained straight PU tube. The hose could be straighten out when the operator move in the certain space which is determined by the length of the tube. And return to their compact, coiled shape afterwards.It’s easier to carry than most other types of air hoses, they take up less space when stored. Like any hose, a coiled hose is only as good as the materials that go into it.

Reinforced PU Hose

The reinforced PU hose is made of two PU layers with one layer terylene wire braided network stuck in the middle. Beside offering outstanding flexibility, they also could hold max 420 Psi pressure. And the new technics increase the abrasion resistance ability that’s expected with common PU hose.

High Pressure Air Hose Max 30Mpa

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Rubber Compressor Hoses

These hoses are made of durable rubber material, and one or two Nylon fiber wire braided network mixed in the hose wall. That makes them resistant to abrasion and weather conditions. They have a high tensile strength and can withstand high-pressure environments. They are commonly used in industrial settings where heavy-duty applications are required. Such as the tasks in construction, roadwork.

Normally 200-800 psi pressure rated. Work temperature: -30°C to 70°C.

Polyethylene (PE) Hose

Polyethylene air hose is available in two different types: Low Density Polyethylene (LDPE) and High Density Polyethylene (HDPE). LDPE is the most commonly used type. PE materials are generally resistant to most ordinary chemicals. It’s an ideal piping material for a broad variety of applications such as potable water service or natural gas distribution.
Temperature range: -10°C to +60°C. Working pressures 100, 125, 160 and 200 P.S.I. see the thickness of the tube wall.

Polyamide (PA) - Robust, resistant to low temperatures and light

PA is available in different variants, PA 11, PA 12 and PA 6 are the most common polyamide. Due to the cost performance and be suitable for most of the general application, PA11 hose occupy the majority of the market shares.

Well, PA 12 hose is available in an antistatic, fire-resistant or extra flex version. This hose is resistant to low temperatures and with excellent properties against ageing. It’s dimensionally stable at high temperatures and contains no plasticisers.
Temperature range: -60°C to +100°C. Working pressure : Max 420 Psi.

Hybrid Hoses

Hybrid Hose – The hybrid blend of polyurethane, Polyester layer, PVC or rubber has several types combinations! For instance, some hybrid hose are made of one layer of PVC, one Polyester wire network layer and one layer inner rubber hose. Almost all of the combinations allows hybrid hose to be extremely flexible and durable, even in frigid temperatures.

The different combination has different resistance to pressure and tempreature!

But this kind of hose obviously have more excellent performance compared with the single layer hose.

PTFE (polytetrafluoroethylene) hose

PTFE (polytetrafluoroethylene) hose
PTFE also be called as Teflon. It’s a synthetic polymer, which is containing carbon and fluorineis. Specific characteristics & high chemical/temperature tolerances make this a popular choice in critical applications. Such as the usage in the Medical, Aerospace, Oil & Gas, Petrochemical, Semiconductor, Packaging & Food industries and other demanding industries. The FDA has stated that cooking and eating food on Teflon products is perfectly safe.

The single layer PTFE hose normall could hold 420Psi pressure. PTFE hoses can withstand temperaturesas low as -65°F (-54°C) and as high as +400°F (+204.4°C).

PFA Hose-Very high/low temperature resistant

PFA Hose- Food, very high/low temperature resistant.

PFA: perfluoroalkoxy, it is clear transparent with a light blue glow. PFA is often used when clarity, flexibility and a higher continuous working temperature are required. In the Semiconductor and Pharmaceutical industries, PFA HP (High Purity) hoses are used for fluid handling applications that require an extremely low absorption level. FDA approved.
Has a wide temperature range of -328°F (-200°C) to 500°F (260°C).

Flow shart

Attention:

On a compressed air distribution system, pressure losses greater than 3% are considered excessive, and a well-designed system having a steady rate of air flow is usually designed for not more than a 1% loss or 1 PSI for a 100 PSI system. The pipe size depends not only on the volume of air flow but how far it must be carried. To hold the distribution loss to 1 PSI, pipes of larger diameter must be used on longer runs to carry the same flow that can be handled by smaller pipes on shorter runs.

Working Pressure VS WorkingTemperature Chart

How temperature affects a hose?

The operating temperature of the medium and environment directly influences the properties and performance of a hose.

So how is a hose affected by temperature?

Pressure resistance: Pressure resistance: The ability of the hose to withstand pressure is affected by temperature. For example, a hose operating at high temperature will have its pressure resistance reduced.

Hardness: At high temperatures, the hose often becomes softer, which typically increases its flexibility. However, at lower temperatures, it can become more rigid, which can make it vulnerable to damage, especially when bending or moving.

Abrasion resistance: Temperature does not affect the abrasion resistance of the hose.

Chemical resistance: High temperature can change the chemical resistance of the hose, making it more vulnerable to certain chemicals or gases in the system. Low temperatures can have the opposite effect.

How To Choose Air Compressor Hose

Application requirements: Determine the specific application requirements, including the temperature, whether corrosive gases or liquids contained in the atmosphere and so on!

Working pressure: Determine the maximum pressure that your air compressor can deliver and choose a hose with a working pressure rating that exceeds this value.

Hose length: Consider the distance between your air compressor and the tools or equipment that will be connected. The longer the line, the greater the transmission resistance, and at the same time, the pressure drop of the entire system is very large!

Hose diameter: Determine the airflow requirements of your tools and equipment and choose a hose with an appropriate diameter to ensure proper airflow.

Material: Consider the environment in which the hose will be used and choose a material that offers the necessary durability and resistance to abrasion, weather conditions, and chemicals.