How to Choose the Right Thermoplastic Hose?

What is a Thermoplastic Hose?

Thermoplastic hose is a hose made of thermoplastic plastic material, which is widely used in many industries, such as chemical, automotive, food processing, etc. Compared with traditional rubber hoses, thermoplastic hoses have stronger chemical resistance, high temperature resistance, abrasion resistance and longer service life. Choosing the right thermoplastic hydraulic hose is essential to ensure the normal operation and safety of the equipment. In this article, we will discuss in detail how to choose the most suitable thermoplastic hose according to different needs.

Types and application areas of thermoplastic hoses

There are many types of thermoplastic hoses, each with its own unique properties and applications. The following are several common thermoplastic hoses and their applications:

1. Polyurethane Thermoplastic Hose

Polyurethane thermoplastic hoses are extremely strong and durable, offering excellent abrasion, oil, and chemical resistance, making them ideal for high-strength applications in hydraulic systems, automation equipment, and industrial environments.. It has good abrasion resistance, oil resistance and chemical resistance, and is suitable for applications requiring high strength and durability. Common application areas include automation equipment, hydraulic systems and the construction industry.

2. Nylon Thermoplastic Hose

Nylon hoses generally have higher toughness and elasticity, and can provide reliable performance under high pressure and low temperature conditions. They are often used in pneumatic systems, liquid transportation, refrigeration equipment and other fields.

3. PVC Thermoplastic Hose

PVC hoses are a relatively inexpensive thermoplastic hose that are often used in low-pressure applications, especially in the food and beverage industry because they meet food-grade requirements. They are also suitable for light liquid transfer systems.

4. 100R7 and 100R8 Thermoplastic Hose

100R7 thermoplastic hose meets SAE (American Society of Engineers) standards, has good pressure resistance and chemical stability, and is widely used in hydraulic systems and pneumatic equipment. 100R8 hose is another type similar to 100R7 hose, suitable for high-pressure liquid delivery.

5. Thermoplastic High Pressure Hose

Thermoplastic high pressure hoses are designed to withstand higher working pressures and are commonly used in industrial hydraulic systems, heavy machinery, and high-pressure fluid transfer applications.

6. Non Conductive Hydraulic Hose

Non-conductive hydraulic hoses are often used around electrical equipment and have anti-conductive properties, enabling them to be used in environments where it is necessary to prevent electric current from passing through the hose to ensure safety.

 

How to choose thermoplastic hose according to usage requirements?

When choosing the right thermoplastic hose, you need to decide based on the specific application requirements. Here are a few important factors to consider when choosing a thermoplastic hydraulic hose:

1. Temperature resistance requirements

Different types of thermoplastic hoses have different temperature resistance ranges. For example, polyurethane hoses can usually withstand higher temperatures, while PVC hoses are suitable for low-temperature environments. Therefore, when choosing, the working environment temperature of the hose should be considered first. In high-temperature environments, you can choose a hose that is resistant to high temperatures, while in low-temperature environments, you should choose a hose that is more cold-resistant.

2. Pressure resistance

The pressure resistance of thermoplastic hoses is an important factor that must be considered when selecting hoses. If the hose needs to withstand the transportation of high-pressure fluids or gases, high-pressure thermoplastic hoses (such as 100R7 or 100R8 hoses) must be selected. These hoses generally have higher compressive strength and stronger burst resistance, and are suitable for use under high-pressure conditions.

3. Chemical resistance

If the hose will be used for the transmission of chemical liquids or corrosive substances, chemical resistance is a very important selection criterion. Polyurethane and nylon hoses generally have good chemical resistance and can cope with different chemicals, so they are widely used in the chemical and pharmaceutical industries.

4. Inner and outer diameter selection

The inner and outer diameters of the hose determine the flow rate and delivery capacity of the fluid. When selecting a hose, you must select the appropriate inner and outer diameters according to the flow requirements to ensure smooth flow of the fluid. If the inner diameter is too small, the flow rate may slow down or even cause excessive system pressure; while if the inner diameter is too large, energy may be wasted.

How to select thermoplastic hose according to application requirements

5. Bending radius

The bend radius of a thermoplastic hose refers to the minimum bend radius that the hose can withstand without damaging the hose. In applications where space is limited or frequent bending is required, it is important to select the appropriate bend radius. Too small a bend radius may cause the hose to break or crack, so when selecting a hose, this factor should be considered based on the installation environment of the equipment.

6. Hose weight and flexibility

The weight and flexibility of the hose are particularly important for equipment that needs to be moved or frequently operated. Polyurethane hoses and nylon hoses are generally lighter and more flexible, suitable for dynamic applications. For static applications or applications that need to withstand larger loads, thicker hoses can be selected.

7. Security and Authentication

Safety is an important consideration when choosing thermoplastic hoses, especially in environments with high pressure, high temperature or involving chemicals. Some hoses are certified to meet international standards (such as ISO, SAE, DIN, etc.), ensuring their reliability and safety in use. When choosing, you can look for relevant certifications to ensure that the hose meets industry safety regulations.

8. Cost-effectiveness

Although high-performance thermoplastic hoses are usually more expensive, they can provide longer service life and better performance, which will ultimately save companies repair and replacement costs. Therefore, when choosing a hose, it is important to consider not only the purchase cost, but also evaluate its long-term cost-effectiveness.

 

How to install and maintain thermoplastic hoses?

Proper installation and regular maintenance of thermoplastic hoses can greatly extend their service life and reduce failures and safety hazards. Here are some precautions when installing and maintaining thermoplastic hoses:

1. Pre-installation inspection

Before installing a thermoplastic hose, the hose should be inspected to ensure that there are no damage, cracks or flaws. If any defects are found in the hose, it should be replaced immediately. The end fittings and connections of the hose should also be checked to ensure that they are the correct size for the hose and that the connection is secure.

2. Proper bending and layout

When installing, follow the minimum bend radius requirements for thermoplastic hoses and avoid excessive bending or stretching of the hose. When routing, avoid exposing the hose to excessive sunlight, chemicals, or extreme temperatures. In addition, avoid contact between the hose and sharp objects or rough surfaces to reduce wear and damage.

3. Regular inspection and cleaning

Regularly inspect the appearance of thermoplastic hoses to check for any signs of wear, cracks or other damage. Especially in high-pressure, high-temperature working environments, hoses are susceptible to wear and fatigue, so regular cleaning and maintenance are essential. Use a mild detergent and a soft cloth to clean the surface of the hose, and avoid using strong acid and alkali detergents.

4. Replacement and maintenance plan

In order to ensure the reliability and safety of hoses, enterprises should regularly formulate hose replacement and maintenance plans. According to the use of hoses and working environment, the inspection and replacement cycle should be reasonably arranged to avoid failures at critical moments.

 

Common thermoplastic hose brands and product recommendations

There are several well-known brands in the market that produce thermoplastic hoses, some of which are widely praised for their high quality and innovation. The following are several well-known thermoplastic hose brands in the industry and their recommended products:

1. Parker Parflex Thermoplastic Hose

Parker Parflex is a world-renowned hose brand that provides high-pressure, chemical-resistant, and high-temperature-resistant thermoplastic hoses. Its Parflex series includes 100R7 and 100R8 hoses, which are widely used in hydraulic, pneumatic, and liquid transportation fields.

2. Gates Thermoplastic Hose

Gates is another brand that has a great reputation in the thermoplastic hose industry. Gates' thermoplastic hoses have excellent durability and pressure resistance, suitable for a variety of industrial applications. Its high-pressure thermoplastic hoses can withstand higher working pressures and are suitable for demanding working environments.

3. HENGHUA thermoplastic hose

HENGHUA provides various types of thermoplastic hoses suitable for high-pressure hydraulic systems, food processing and other fields. Polyhose hoses have excellent wear resistance, chemical resistance and long-term reliability, and are the first choice for many industries.

Common application scenarios of thermoplastic hoses

Thermoplastic hoses are widely used in many industries. Here are some common application scenarios:
· Hydraulic system : Thermoplastic hoses are widely used in hydraulic systems, especially under high pressure, high temperature and harsh environment, and can provide reliable performance.
· Automotive Industry : In automobile manufacturing, thermoplastic hoses are often used for the transmission of fuel, brake fluid and air systems.
· Chemical industry : Thermoplastic hoses are widely used in the transportation of chemical liquids due to their excellent chemical resistance, ensuring safety and stability during liquid transportation.
· Food and Beverage Industry : Thermoplastic hoses that meet food grade standards can be used to transport food and beverages to ensure hygienic safety.

 

Advantages and disadvantages of thermoplastic hoses

When choosing a thermoplastic hose, understanding its advantages and disadvantages can help you make a more informed decision. Each type of hose has unique performance characteristics suitable for specific working environments.

1.Advantages

Durability and Long Life
Thermoplastic hoses offer excellent durability and long service life. They are typically able to withstand high pressures, high temperatures, and a wide range of chemicals, which makes them perform well in harsh environments.
Lightweight and flexible
Thermoplastic hoses are much lighter than traditional rubber hoses and have good flexibility. They are suitable for use in places where space is limited or frequent bending is required, reducing the difficulty of equipment operation.
Chemically resistant
thermoplastic hoses are highly resistant to corrosion from many chemicals, including oils, solvents, acids, and bases. As a result, they are often used in the chemical industry, food processing, and other areas where chemical resistance is required.
Wear-resistant
thermoplastic hoses have very good wear resistance, especially in high-friction working environments, which can effectively reduce hose damage caused by wear and extend service life.
UV and Weather Resistance
Many thermoplastic hoses are UV resistant and suitable for outdoor use. At the same time, they are also highly weather resistant and can withstand temperature changes and humidity changes in different environments.

2.Disadvantages

Higher Costs
Despite the many benefits of thermoplastic hoses, they typically cost more than traditional rubber hoses, so if you have a limited budget, this may be a trade-off.
Possible Hardness Issues
In some applications, thermoplastic hoses may not be as hard as other types of hoses (such as rubber hoses), which may affect their performance in some special applications.
Limitations of long-term high-temperature use
Although thermoplastic hoses can withstand higher temperatures, they may age and become brittle in long-term high-temperature environments. Therefore, for continuous high-temperature environments, regular inspection and replacement of hoses may be required.
Potential Installation Difficulties
Certain types of thermoplastic hoses can be difficult to install, especially in tight spaces or applications that require multiple bends.

 

How to extend the service life of thermoplastic hoses?

Prolonging the service life of thermoplastic hoses requires attention to proper installation, regular maintenance, and reasonable use. Here are some suggestions to extend the service life of hoses:

1. Proper installation

Ensure that the hose is not excessively bent or stretched during installation and strictly follow the minimum bending radius requirements. When installing the hose, avoid contact with sharp objects to prevent the hose surface from being worn. During installation, also ensure that the connection between the connector and the hose is firm to avoid oil or liquid leakage.

2. Regular inspection and maintenance

Regularly check the appearance of the hose to see if there are any cracks, wear or other signs of damage. Especially in high-pressure working environments, hoses are susceptible to fatigue damage. It is recommended to establish a maintenance plan to regularly replace hoses with greater wear and tear, and clean the surface of the hose to keep it in good condition.

3. Avoid extreme environments

Avoid exposing the hose to extreme conditions for a long time, such as high or low temperatures, or strong ultraviolet radiation. Although thermoplastic hoses have a certain degree of weather resistance, long-term use in extreme environments will accelerate their aging and reduce their service life.

4. Choose the right hose type

Choose the appropriate thermoplastic hose type according to the actual application requirements. For example, for high temperature environments, you can choose high temperature resistant thermoplastic hoses; for high pressure systems, choose high pressure thermoplastic hoses to ensure that there will be no failures in long-term use.

 

Conclusion: How to choose the right thermoplastic hose?

Choosing the right thermoplastic hose requires a comprehensive consideration of multiple factors based on the requirements of the actual application. By understanding the characteristics, performance and application range of different hoses, you can find the thermoplastic hose that best suits your needs. Whether in high-pressure hydraulic systems, chemical delivery, food processing, or industrial automation, thermoplastic hoses can provide reliable performance.
At the same time, proper installation and regular maintenance will help you extend the service life of the hose, reduce failures and downtime, and ensure the long-term stable operation of the equipment. Finally, choosing a well-known brand of thermoplastic hose and ensuring that it meets industry standards will further improve the safety and reliability of the system.

Call to action:
If you are looking for high-quality thermoplastic hoses, please contact us for more product information and professional advice. Our thermoplastic hose products meet international certification standards and are suitable for a variety of high pressure, high temperature and chemical environments, ensuring the most reliable support for your equipment.