When choosing hose for industrial applications, the reinforcements a crucial factor. The reinforcement gives the hose its strength and allows it to withstand overpressure, underpressure (vacuum), bending and mechanical stress. The choice of reinforcement method also affects flexibility, service life and safety.
In this article we go through the most common reinforcement methods and their respective characteristics.
What is reinforcement in hoses?
Reinforcement is a reinforcing layer built into the wall of the hose. It can consist of different materials, for example:
- Textile (polyester, nylon)
- Fiberglass
- Galvanized steel coil
- Antistatic copper wire
The aim is to give the hose the right balance between strength, flexibility and dimensional stability.
Common reinforcement methods
1. spiral wound reinforcement
Spiral winding is widely used in the manufacture of low pressure hoses.
The method provides:
- High fatigue strength
- Good flexibility
- Good resistance to repeated movements
This type of reinforcement is ideal when the hose is to be bent frequently or used in dynamic environments.
2. braided reinforcement
Braided reinforcement is mainly used in high pressure hoses.
Benefits:
- Increased rigidity
- Good pressure resistance
- Good dimensional stability
The disadvantage is slightly less flexibility compared to spiral winding, but in applications where compressive strength is most important, this is often the right choice.
3. spiral wound reinforcement with steel spiral
When hoses must pass strong over- and underpressure spiral winding with embedded steel spiral is often used.
Characteristics:
- Very high strength
- Improved bending radius at smaller dimensions
- Suitable for demanding industrial environments
This method is often used in suction and pressure hoses where stability is crucial.
4. spiral wound reinforcement with antistatic wire
In environments where static electricity can be dangerous, extra safety is required.
The anti-static wire:
- Dissipates static electricity
- Often made of copper
- Used in the transportation of gasoline, oils, chemicals and explosive particles
This is an important safety solution in the chemical industry and fuel handling.
Executive summary
The choice of reinforcement method has an impact:
- Pressure resistance
- Flexibility
- Lifespan
- Security and safety
Understanding the differences between spiral wound, braided and specialty reinforced hose will help you choose the right solution for your application - and avoid unnecessary wear or downtime.
