As a leading supplier of Rubber Hose EN857, I often receive inquiries from various industries regarding the suitability of our products for their specific applications. One question that frequently arises is whether Rubber Hose EN857 can be used in the pulp and paper industry. In this blog post, I will delve into the characteristics of Rubber Hose EN857 and explore its potential applications in the pulp and paper sector.
Understanding Rubber Hose EN857
Rubber Hose EN857 is a type of hydraulic hose that conforms to the European standard EN857. This standard specifies the requirements for two-wire braided hydraulic hoses with a minimum burst pressure of four times the working pressure. These hoses are designed for use in hydraulic systems that require high pressure and flexibility.
The construction of Rubber Hose EN857 typically consists of an inner tube, one or more layers of braided reinforcement, and an outer cover. The inner tube is usually made of synthetic rubber, which provides resistance to the hydraulic fluid being transported. The braided reinforcement, typically made of high-tensile steel wire, provides strength and pressure resistance. The outer cover, also made of synthetic rubber, protects the hose from external damage, such as abrasion, weathering, and chemicals.
Requirements of the Pulp and Paper Industry
The pulp and paper industry is a complex and demanding sector that involves a wide range of processes, from the production of pulp from wood or other fibrous materials to the manufacturing of various paper products. Hydraulic systems are widely used in this industry for a variety of applications, including:
- Machine operation: Hydraulic cylinders are used to control the movement of various machine components, such as presses, rollers, and conveyors.
- Material handling: Hydraulic pumps and motors are used to power forklifts, cranes, and other material handling equipment.
- Process control: Hydraulic valves and actuators are used to control the flow of fluids, such as water, steam, and chemicals, in various processes.
The hydraulic systems in the pulp and paper industry operate under harsh conditions, including high pressures, high temperatures, and exposure to chemicals and abrasive materials. Therefore, the hoses used in these systems must be able to withstand these conditions and provide reliable performance over an extended period of time.
Suitability of Rubber Hose EN857 for the Pulp and Paper Industry
When considering the suitability of Rubber Hose EN857 for the pulp and paper industry, several factors need to be taken into account:
- Pressure rating: The working pressure in the pulp and paper industry can vary depending on the specific application. Rubber Hose EN857 is available in different pressure ratings, typically ranging from 200 bar to 400 bar. It is important to select a hose with a pressure rating that is suitable for the maximum working pressure of the hydraulic system.
- Temperature resistance: The temperature in the pulp and paper industry can also vary depending on the process. Rubber Hose EN857 is designed to operate within a temperature range of -40°C to +100°C. However, if the hydraulic system operates at higher temperatures, a hose with a higher temperature resistance may be required.
- Chemical resistance: The pulp and paper industry uses a variety of chemicals, such as acids, alkalis, and solvents, in its processes. Rubber Hose EN857 is resistant to many common hydraulic fluids and chemicals. However, it is important to ensure that the hose is compatible with the specific chemicals used in the hydraulic system.
- Abrasion resistance: The hoses in the pulp and paper industry are often exposed to abrasive materials, such as wood chips, pulp fibers, and paper dust. Rubber Hose EN857 has a durable outer cover that provides good abrasion resistance. However, if the hose is exposed to particularly abrasive conditions, a hose with a higher abrasion resistance may be required.
Based on these factors, Rubber Hose EN857 can be a suitable choice for many applications in the pulp and paper industry. However, it is important to consult with a qualified hydraulic engineer or hose specialist to ensure that the hose is properly selected and installed for the specific application.
Comparison with Other Hydraulic Hoses
In addition to Rubber Hose EN857, there are other types of hydraulic hoses that are commonly used in the pulp and paper industry, such as Rubber Hose EN853 and Rubber Hose EN856. Here is a comparison of these hoses:
- Rubber Hose EN853: This is a single-wire braided hydraulic hose that is suitable for low to medium pressure applications. It has a lower pressure rating and less flexibility than Rubber Hose EN857, but it is also less expensive.
- Rubber Hose EN856: This is a four-wire spiral hydraulic hose that is suitable for high pressure applications. It has a higher pressure rating and more flexibility than Rubber Hose EN857, but it is also more expensive.
The choice of hydraulic hose depends on the specific requirements of the application, including the pressure rating, temperature resistance, chemical resistance, and abrasion resistance. In general, Rubber Hose EN857 offers a good balance of performance and cost for many applications in the pulp and paper industry.
Conclusion
In conclusion, Rubber Hose EN857 can be a suitable choice for many applications in the pulp and paper industry. Its high pressure rating, temperature resistance, chemical resistance, and abrasion resistance make it well-suited for the harsh conditions in this sector. However, it is important to consult with a qualified hydraulic engineer or hose specialist to ensure that the hose is properly selected and installed for the specific application.
If you are in the pulp and paper industry and are looking for a reliable and high-quality hydraulic hose, I encourage you to consider our Rubber Hose EN857. Our hoses are manufactured to the highest standards and are backed by our extensive experience and technical expertise. To learn more about our products or to discuss your specific requirements, please contact us for a consultation and procurement discussion.
References
- EN 857:2016 - Rubber and plastics hoses and hose assemblies - Hydraulic - Specification for two - wire braided hoses
- Industry reports on the pulp and paper manufacturing processes and hydraulic system requirements
