As a supplier of Helix PU Hose, I often get asked about the inner diameter range of our products. In this blog, I'll delve into the details of the inner diameter range of Helix PU Hose, its significance, and how it relates to various applications.
Understanding Helix PU Hose
Helix PU Hose, made from polyurethane (PU), is a popular choice in many industries due to its excellent properties. Polyurethane is known for its high abrasion resistance, flexibility, and durability. The helix design of the hose provides additional strength and support, making it suitable for a wide range of applications.
Why Inner Diameter Matters
The inner diameter of a hose is a crucial factor that determines its performance. It affects the flow rate of the fluid or material passing through the hose. A larger inner diameter allows for a higher flow rate, which is essential in applications where large volumes of materials need to be transferred quickly. On the other hand, a smaller inner diameter may be required in applications where precise control of the flow is necessary.
Inner Diameter Range of Helix PU Hose
Our Helix PU Hose comes in a wide range of inner diameters to meet the diverse needs of our customers. The inner diameter typically ranges from 6mm to 150mm. This broad range allows us to offer hoses suitable for various applications, from small-scale operations to large industrial processes.
Small Inner Diameter Hoses (6mm - 25mm)
Hoses with an inner diameter in the range of 6mm to 25mm are commonly used in applications where precise control of the flow is required. These hoses are often used in pneumatic systems, such as in the transfer of compressed air for small tools and equipment. They are also suitable for applications in the medical and laboratory fields, where small volumes of fluids need to be transferred accurately.
For example, in a dental clinic, a Helix PU Hose with a small inner diameter may be used to transfer water and air to the dental handpiece. The small diameter ensures that the flow can be precisely controlled, providing a comfortable experience for the patient.
Medium Inner Diameter Hoses (25mm - 50mm)
Hoses with an inner diameter between 25mm and 50mm are widely used in a variety of industrial applications. They are suitable for the transfer of liquids, such as water, oil, and chemicals, as well as for the conveyance of granular materials, such as sand and gravel.


In the construction industry, these hoses may be used to transfer concrete or other building materials from one location to another. The medium diameter allows for a reasonable flow rate while still maintaining flexibility and ease of handling.
Large Inner Diameter Hoses (50mm - 150mm)
Hoses with an inner diameter ranging from 50mm to 150mm are designed for high-volume applications. They are commonly used in industries such as mining, agriculture, and wastewater treatment.
In the mining industry, large-diameter Helix PU Hoses are used to transfer slurries, which are mixtures of water and solid particles. The large inner diameter allows for the efficient transfer of large volumes of slurry, reducing downtime and increasing productivity.
Applications and Inner Diameter Selection
The choice of inner diameter for a Helix PU Hose depends on the specific application. Here are some common applications and the recommended inner diameter ranges:
Pneumatic Systems
For pneumatic systems, such as those used in air compressors and pneumatic tools, hoses with an inner diameter of 6mm to 25mm are typically recommended. These hoses can handle the relatively low flow rates required in these applications while providing the necessary flexibility and durability.
Liquid Transfer
When transferring liquids, such as water, oil, or chemicals, the inner diameter of the hose should be selected based on the flow rate and pressure requirements of the system. For low-flow applications, a smaller inner diameter hose may be sufficient. However, for high-flow applications, a larger inner diameter hose may be necessary to ensure efficient transfer.
Material Handling
In material handling applications, such as the transfer of granular materials or powders, the inner diameter of the hose should be large enough to prevent clogging. Hoses with an inner diameter of 25mm to 150mm are commonly used in these applications, depending on the size and quantity of the materials being transferred.
Related Products
In addition to Helix PU Hose, we also offer other types of hoses that may be suitable for your needs. You can check out our Smooth PU Hose, which is known for its smooth inner surface, reducing friction and improving flow efficiency. Our Translucent Hose allows for easy visual inspection of the contents inside the hose, making it ideal for applications where monitoring the flow is important. And our Material Handling Hose is specifically designed for the transfer of various materials, providing excellent abrasion resistance and durability.
Conclusion
The inner diameter range of Helix PU Hose is an important factor to consider when selecting a hose for your application. Our wide range of inner diameters, from 6mm to 150mm, allows us to meet the diverse needs of our customers. Whether you need a small-diameter hose for precise flow control or a large-diameter hose for high-volume applications, we have the right solution for you.
If you have any questions about the inner diameter range of our Helix PU Hose or need help selecting the right hose for your application, please feel free to contact us. We are here to provide you with the best products and services to meet your requirements.
References
- "Polyurethane Hoses: Properties and Applications" - Industrial Hoses Handbook
- "Hose Selection Guide" - Fluid Transfer Systems Magazine

