Hose assembly guide

Table of contents

Understanding system requirements

To have a durable and efficient hose assembly, it's crucial to understand the system requirements.

Start by analyzing the unique pressure needs, including both steady-state pressures and unexpected pressure surges. Misidentifying or failing to identify pressure requirements can lead to early hose failures or even hose bursts.

In vacuum applications, it's worth considering whether the hose can handle negative and positive pressure.

Furthermore, it's important to take into account various environmental conditions, especially in specialized environments such as underwater applications, in hydraulic systems and chemical applications.

Rotation between hose couplings

In the context of hose assemblies, rotation refers to the orientation of the couplings at either end of the hose. It's crucial to ensure that these couplings are aligned correctly for the specific application.

For instance, a 90 or a 270-degree rotation means one coupling is oriented perpendicularly to the other, as clearly illustrated in our accompanying graphic.

Proper coupling orientation is vital for maintaining the hose's efficiency and preventing undue stress on the assembly.

Material and environmental compatibility

One of the essential factors for a safe hose assembly is the hose material compatibility with the different media.

This compatibility must not be compromised as it determines the hose's resistance to penetration, which directly affects the choice of hose.

In addition, environmental factors such as UV light, contaminants and ozone can affect the lifespan of the hose.

If static electricity builds up when using the hose, there are a number of antistatic hoses for this purpose, including our Airfood antistatic and Dynamic antistatic.

Material and environmental compatibility.png

Sizing and use of fittings

Correctly sizing the hose and choosing the right materials to suit the media and environment is essential to achieve optimal flow and minimize pressure loss.

In addition, using the correct fittings is essential for a reliable hose assembly.

Fittings are designed to maintain the desired flow capacity and pressure integrity of the system. Improperly selected or installed fittings can restrict flow or cause pressure drops, which can negatively impact system performance.

Quick guide: How to assemble reusable hose couplings for small hoses

Hose bend radius

The bend radius refers to the minimum distance a process hose can be bent without damage.

At Alfotech, we distinguish between two types: static (no motion) and dynamic (with repetitive movements).

Properly managing this radius is vital; incorrect bending can stress the hose, disrupt flow, and even halt production.