Hot water hoses

How is the hot water hose constructed?

The hot water hose is constructed very similarly to other hoses. The main difference is that EPDM is used as the dominant material here.

The hot water hose itself consists of three layers:

• inner - made from EPDM rubber, 
• reinforcement - usually in the form of textile or steel bands, 
• outer - also made of EPDM rubber, but in some cases with an additional covering, e.g. ceramic.

It is worth noting here that, thanks to the chemical resistance of EPDM, the hot water hose can also work as a coolant hose. It can be used for transporting glycol-type coolants. In addition, it will also cope with other water-based chemical liquids.

What are the types of hot water hoses?

Hot water hoses are divided into different types. Take this into account when choosing the right product for you.

Apart from the general industrial specimens, you have two more types of hose to choose from:

• drinking hot water hose, 
• steam hose.

Drinking water hoses are hoses that meet the standards necessary for working with food. Therefore, they are created from chemically inert materials, which guarantees that the transport of food products will not endanger the health of consumers or the quality of the food.

Steam hoses are very similar to those used to transport hot water. Therefore, they are sometimes used interchangeably. Steam hoses are further subdivided according to the type of steam to be transmitted (superheated saturated dry, or wet), and also operate at higher operating pressures (although there are also special hoses for low pressure).

What to look for when choosing a hot water hose?

When choosing a hot water hose check its elasticity, reinforcement and the working pressure.

In addition to the type of hot water hose, there are several other characteristics that you should consider before purchasing a specific product.

Consider that hoses often work on so-called 'bridges' in injection moulds. As a result, they bend repeatedly over short distances, which, with the inferior properties of the hot water hose, leads to the hose wall collapsing inwards. As a result, the flow force decreases, and the risk of damage to the installation increases.

You avoid this problem if you already possess flexible hoses - or at least ones with better bending characteristics.

Another issue is the type of work you do. If you are not only pumping the medium but also sucking it in, you will need a reinforced hot water hose. The reinforced hose features additional reinforcement in the form of a steel spiral, so it can cope with vacuum work without kinking inwards.

Finally, the operating pressure also comes into play. This is a very important parameter as it determines the maximum resistance of the hose, beyond which the risk of bursting increases.

Therefore, always check how the hot water pressure hose you intend to buy compares in this respect.