Large Diameter High Temperature Resistant Rubber Hose

In high-temperature industrial environments, ordinary rubber hoses may experience hardening, aging, cracking, and other problems due to continuous heat exposure, thermal cycling, or temperature changes of the transported media. Therefore, the design focus of Large Diameter High Temperature Resistant Rubber Hose is not only to improve the heat resistance temperature of the rubber material, but also to determine the hose structure based on the comprehensive consideration of media temperature, working pressure, service duration, bending radius, and connection method.

JIDONGDA’s Large Diameter High Temperature Resistant Rubber Hose is mainly designed for flexible connections and high-temperature media transportation requirements in industrial conveying systems. According to actual working conditions, different heat-resistant rubber compounds, reinforcement layers, and outer cover structures can be selected. The hose can also be equipped with flange connections, threaded connections, or other connection methods.

Why Do High-Temperature Conditions Require Special Rubber Hoses?

When large diameter rubber hoses operate in high-temperature environments, the materials are affected by thermal aging, temperature cycles, and changes in media temperature. Therefore, heat-resistant hoses usually require structural design from three aspects: the inner rubber layer, reinforcement layer, and protective outer cover.

1. Heat-Resistant Inner Tube

The inner rubber layer directly contacts the transported media and is an important part affecting the temperature resistance of the hose.

According to different media conditions, suitable heat-resistant rubber materials can be selected to help the hose maintain good flexibility and sealing performance within the specified operating temperature range.

2. Reinforcement Layer

For applications requiring pressure resistance or vacuum performance, the reinforcement layer helps maintain the structural stability of the hose.

The reinforcement structure of large diameter hoses can be selected according to:

· Working pressure

· Negative pressure

· Hose diameter

· Bending requirements

· Installation conditions

3. Protective Outer Cover

The outer rubber cover is mainly used to protect the internal structure and reduce the impact of external factors such as heat, abrasion, oil contamination, and weather conditions.

If the hose is installed in steel plants, equipment production lines, or industrial production areas, the selection should also consider whether the site involves high-temperature radiation, mechanical friction, and dust environments.

如果软管安装在钢厂、设备生产线或工业生产区域，还需要结合现场是否存在高温辐射、机械摩擦以及粉尘环境进行选择。

Technical Parameters

· Normal working temperature: -20℃ to +80℃

· Heat-resistant type: up to +120℃ according to available data

· Working pressure: Confirmed according to structure and temperature conditions

· Negative pressure: Confirmed according to suction conditions

· Inner diameter and length: According to project requirements

· Flange: GB / DIN / ANSI / JIS / ASME or customer drawings

Typical Application Scenarios

Applicable Industries

Steel Industry

Used for flexible connections and suitable media transportation in certain high-temperature industrial equipment during steel production.

Steel industry environments often involve high temperatures, dust, and mechanical vibration. Therefore, hose selection needs to consider the actual installation position and media conditions.

Chemical Industry

Used for transporting suitable high-temperature industrial fluids, with key considerations including the chemical properties of the media and operating temperature.

Industrial Equipment

Used for flexible connections between equipment, helping reduce the impact of equipment vibration and pipeline installation errors.

Construction & Heavy Equipment

Some construction machinery and industrial equipment require high-temperature liquid or gas transportation. The hose structure can be customized according to specific working conditions.

Thermal & Process Systems

Used as a flexible pipeline connection component in certain thermal and industrial process systems.

Usage Precautions

Do not exceed the confirmed temperature, pressure, and negative pressure ranges.

For long-term high-temperature operation, regularly inspect the outer cover for aging, cracks, bulging, and flange sealing conditions.

For special media, high-temperature conditions, or non-standard applications, material compatibility should be confirmed before ordering.

Maintenance and Service Life

It is recommended to record temperature, pressure, and service time during operation.

If hardening, cracking, leakage, or abnormal deformation occurs on the outer cover, stop using the hose and check the actual operating conditions and material compatibility.

Frequently Asked Questions

What is the maximum temperature resistance?

Available information indicates that the heat-resistant type can withstand temperatures up to +120℃. However, the actual allowable temperature must be confirmed according to rubber compound, media, pressure, and hose structure.

What rubber materials are available?

Available materials include NR, SBR, IIR, CR, EPDM, and PU. The final material selection depends on actual operating conditions.

Can it withstand pressure under high-temperature conditions?

Yes. The hose can be designed for high-temperature pressure applications, but the working pressure must be confirmed according to the specific structure and temperature conditions.

Can it be manufactured in large diameters?

Yes. The product is positioned as a Large Diameter High Temperature Resistant Rubber Hose. The available diameter range should be confirmed according to actual production capabilities and project requirements.

What information is required for quotation?

It is recommended to provide the following information:

· Inner diameter

· Hose length

· Transported media

· Continuous / peak temperature

· Working pressure

· Negative pressure

· Flange standard

· Quantity requirements