PVC steel-wire suction hose is a high-performance hose with a spiral steel wire reinforced in the PVC pipe wall. This steel wire is usually copper-plated or galvanized steel to provide rust resistance. It is designed to meet the needs of more demanding industrial applications. We have another type of PVC reinforced hose. Different with steel wire skeleton, this hose is reinforced by high strength fiber braided. The following content is their detailed anlysis.
Fundamental differences in stress types
The 4-10 bar rating on fiber-reinforced hoses refers to the “working positive pressure”:
This pressure refers to the force exerted by the hose’s internal expansion.
The fiber braid acts like a bulletproof vest. It can tightly binding the PVC inner tube and resisting the force of the fluid inside. And also preventing it from bursting.
This is why it has a strong ability to withstand positive pressures.
| Pressure Type | PVC Fiber Reinforced Hose | PVC Steel Wire Reinforced Hose |
| Working positive pressure | High(4-10bar) | Medium(2-6bar) |
| Working negative pressure | Lower | High |
The 2-6 bar rating on steel-wire reinforced hoses also generally refers to the “working positive pressure”:
However, please note that the true advantage of steel-wire hoses is their ability to withstand negative pressure (vacuum), which fiber-reinforced hoses generally lack.
The steel wire is spirally wound, and its primary function is to prevent the hose from being deflated.
How to choose the right hose?
If your application primarily involves pumping and output (positive pressure), such as water supply or air supply to pneumatic tools, fiber reinforced hose is a more cost-effective option.
If your application involves suction and inhalation (negative pressure/vacuum), such as vacuuming, water extraction, or material suction, or involves alternating positive and negative pressure, steel wire reinforced hose is the only option.
An a professional hose manufacturer and exporter: weather is PVC steel-wire suction hose or fiber hose. We want to provide customers with the most suitable products, not just sell them a product. Please let us know your specific application scenario and we can recommend the most cost-effective solution for you.
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