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Polyurethane hoses / PU hoses

Polyurethane (PU) hoses from NORRES are characterised by very good product properties. They are abrasion-resistant and durable. Due to their nature, they are versatile. They convey and transport various media and are used in many areas of industry.

Production

PU hoses are produced in a variety of designs at our production facilities. The difference is in the construction, material, diameter and design.

For many of our PU hoses we use a special ester and a special ether polyurethane mixture for the production. The use of high-quality plastics guarantees NORRES polyurethane hoses a high product quality. We call this special polyurethane mixture Pre-PUR®. Polyurethane hoses made of Pre-PUR® are particularly durable.

We specifically adapt the design and properties of PU hoses to the needs of our customers. In this way, we create a special added value: we supply you with the optimum hose for your application.

Produktion Schlauch

Product variability

We manufacture the PU hoses in various construction variants. We have developed our constructions ourselves and had them patented. They differ in their construction and in their adaptations in the production process to achieve different properties. Some types of hoses can also be coloured.

Our constructions – proven and safe

AIRDUC® profile hoses

AIRDUC® polyurethane hoses have a firmly cast-in spring steel wire and are spirally welded. This makes the hose dimensionally stable without restricting its flexibility. In addition, it has a material-locking and secure connection and is gas- and liquid-tight. AIRDUC® polyurethane hoses are very light compared to similar plastic hoses and have a high flow rate..

PROTAPE® hoses

PROTAPE® polyurethane hoses have a spring steel wire embedded in the wall and are spirally welded from foil strips. Thanks to the welding process formerly patented by NORRES, we achieve optimum product quality with PROTAPE® hoses. The hoses are extremely flexible, compressible and have a low weight.

BARDUC® hoses

BARDUC® polyurethane hoses have a spring steel wire cast into the wall. The product advantage of these PU hoses: they are smooth on the inside and outside, axially very stiff and yet flexible. The hoses are gas- and liquid-tight.

NORPLAST® hoses

NORPLAST® polyurethane hoses have a hard plastic helix firmly cast into the wall and are welded in a spiral. Compared to steel wire reinforced hoses, they are usually lighter but less flexible.

NORFLEX® hoses without fabric reinforcement

NORFLEX® hoses are axially extruded. They have a regular wall thickness and are smooth on the inside and outside.

NORFLEX® hoses with fabric reinforcement

Some NORFLEX® hoses are manufactured with an additional fabric reinforcement. This is firmly cast into the wall. The hoses are pressure-resistant and axially stiff. They are nevertheless flexible and have a low weight.

Colouring

The colouring of some PU hoses from our portfolio is possible without any problems. Depending on the hose type, we can colour the hose completely in one colour or partially on request.

Partially coloured

We have developed a patented manufacturing process to partially colour AIRDUC® and PROTAPE® hoses. In this process, the so-called hose bead is coloured. The hose bead is the part of the PU hose into which the spring steel wire has been incorporated. The hose wall - between the beads - remains transparent. The conveying process can be observed undisturbed.

TWIN COLOR

Properties

As already described, we use a special polyurethane mixture called Pre-PUR® to achieve product advantages. All our products made with these high-quality raw materials are marked with the Pre-PUR® icon (see picture on the right).

Depending on the base polyurethane of the Pre-PUR® hoses, they can have the following properties:

  • very good mechanical strength
  • high abrasion resistance
  • higher compressive strength
  • better hot air aging properties
  • better low temperature flexibility
  • resistant to microbes
  • resistant to hydrolysis
  • very long service life
  • more safety reserves
Icon Pre-PUR

Resistance

Pre-PUR® raw materials together with stabilisers lead to better resistance and longer service life of the PU hoses. Ideal for comparison is the hydrolysis measurement in water at 80 °C. In the hydrolysis measurement, we measured the abrasion and tensile strength between hoses made of Pre-PUR®

Resistance

Abrasion resistance

The abrasion resistance of our Pre-PUR® polyurethanes is about 2.5-5 times better than that of many rubber raw materials and about 3-4 times higher than that of most soft PVCs (measured at 20°C). This is the result of a standard measurement. In addition, it was found that these serious differences are even greater in daily use. The detailed result can be found in the comparison diagram:

abrasion resistance

Applications

In our broad product portfolio of polyurethane hoses, you will find hose types for a wide range of applications:

  • Food and pharma
  • Agriculture
  • Extraction systems
  • Wood and plastic
  • Municipal vehicles

Shipping

Some polyurethane hoses are marked with the 24h or 48h symbol. If a PU hose bears one of these symbols, we guarantee to ship this hose within 24 or within 48 hours. Otherwise, we will pay the shipping costs of the ordered polyurethane hoses.

Products

Below we present a selection of our most popular suction hoses, our complete range of suction hoses can be found here.

PROTAPE® PUR 330 AS BLACK (LD)
Antistatic polyurethane hose, light, black

Overview

  • antistatic < 10⁹
  • highly abrasion resistant suction hose + pressure hose, multi purpose hose + universal hose
  • Wall thickness 0,6 mm approx.
  • -40°C to +90°C (+125°C)
To the product
AIRDUC® PUR 355 AS (HD)
Antistatic polyurethane hose, heavy, microbe resistant, flame-resistant

Overview

  • highly abrasion resistant suction hose + pressure hose, multi purpose hose + universal hose
  • antistatic < 10⁹
  • Wall thickness 1,5mm
  • -40°C to +90°C (+125°C)
To the product
PROTAPE® PUR 330 AS (LD)
Antistatic polyurethane hose, light, microbe resistant + flame-resistant

Overview

  • highly abrasion resistant suction hose + pressure hose, multi purpose hose + universal hose
  • antistatic < 10⁹
  • Wall thickness 0,6 mm approx.
  • -40°C to +90°C (+125°C)
To the product
PROTAPE® PUR 301 AS (XLD)
Antistatic polyurethane hose, super-light, microbe resistant, flame-resistant

Overview

  • abrasion resistant suction hose + pressure hose, multi purpose hose + universal hose
  • antistatic < 10⁹
  • Wall thickness 0,4mm
  • -40°C to +90°C (+125°C)
To the product
AIRDUC® PUR 350 AS BLACK (MD)
Antistatic polyurethane hose, medium-heavy, black

Overview

  • abrasion resistant suction hose + pressure hose, multi purpose hose + universal hose
  • antistatic < 10⁹
  • Wall thickness 0,7 mm approx.
  • -40°C to +90°C (+125°C)
To the product
PROTAPE® PUR 333 AS (MD)
Antistatic polyurethane hose, medium-heavy, microbe resistant

Overview

  • highly abrasion resistant suction hose + pressure hose, multi purpose hose + universal hose
  • antistatic approx. 10⁹ Ω
  • Wall thickness 0,9mm
  • -40°C to +90°C (+125°C)
To the product
AIRDUC® PUR 350 AS (MD)
Antistatic polyurethane hose, medium-heavy, microbe resistant, flame-resistant

Overview

  • highly abrasion resistant suction hose + pressure hose, multi purpose hose + universal hose
  • antistatic < 10⁹
  • Wall thickness 0,7 mm approx.
  • -40°C to +90°C (+125°C)
To the product

More info

More information on polyurethane hoses, especially when it comes to technical aspects such as standards and regulations or pressure values, can be found in the Technical Information section.

If you have any further questions about our suction hoses or other NORRES products, please do not hesitate to contact us by e-mail (info@norres.com) or telephone (+49 209 8 00 00 0).