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Hose constructions of spiral hoses
Anyone who believes that a hose is a trivial C product is mistaken. Even the structure is complex. Find out more about our hose designs.
Industrial hoses are complex products made from a wide variety of materials or material combinations. The reason for this diversity is the equally diverse applications of technical hoses.
In general, a hose consists of the following three elements: core, liner and cover.
The structure of (spiral) hoses
The soul
The core refers to the layer of material that lines the inside of the hose. This means that all pumped media only come into contact with it. The quality of the inner component is therefore crucial for the safe and long service life of the hose. The medium to be conveyed determines the choice of core.
The insert
The insert (fabric, textile or wire) between the core and the hose cover gives the hose the necessary mechanical strength to withstand the pressure or negative pressure of the flow medium. In addition, the liner material secures the hose against kinking. The choice of liner material depends on the pressure rating.
What makes a spiral hose an industrial hose
In order for a hose to become an industrial hose and withstand the different, often simultaneous loads such as temperature, positive or negative pressure, flow velocity and permeation of the conveyed medium etc. over as long a period as possible, the optimum combination of material and hose construction must be found for the respective application.
Here are the different hose constructions from our product range:
Clip hoses with clamping profile helix
Structure
Tensile connection between hose material and external material spiral (clip) using a special clamping method.
Advantages
Universal processing and combination options for a wide range of hose materials.
- External abrasion protection due to external clamping profile (clip)
- Increased abrasion protection possible thanks to additional plastic profile above the clamping profile (clip)
- Outstanding flexibility
- smallest bending radii
- extremely compressible in some cases
- Easy to install thanks to the use of the Clip-Grip hose clip
- Almost infinitely variable production diameters from standard to DN 1000
- Larger DN possible on request
Profile extruded spiral hoses
Structure
Extruded plastic profile with spring steel wire moulded in to resist twisting and sliding.
Advantages
- Production possibilities from light, highly flexible to heavy, high-vacuum hose qualities.
- helical, overlapping welded
- uniform, symmetrical folding behaviour due to the firm connection between plastic and spring steel wire
- flow-optimised due to smooth inner wall
- Processing of thermoplastics possible
- Production diameter depending on hose type from DN 13 - DN 500
Our profile-extruded spiral hoses
- Master-PUR Trivolution
- Master-PUR Inline
- Master-PUR Performance
- Master-PUR MHR
- Master-PVC L
- Master-PVC H
- Master-PE L EL
- Master-SANTO
- Streetmaster
- Cargoflex
- Polderflex PUR
- Flamex B se(industrial and food quality)
Film and fabric hoses with embedded support spiral
Our film and fabric hoses with embedded support spiral
- Flamex B-F se
- Master-PUR LF Food
- Master-PE LF EL
Structure
Foils or fabric strips - helical, overlapping welded, with embedded support helix made of spring steel wire.
Advantages
- Variable production options for spiral hoses made from a wide range of materials
- Highly flexible
- smallest bending radii
- Cost-effective storage and low transport costs with compressed, net-packed packaging units
- Production diameters from DN 32 - DN 400 depending on the hose type
- Other nominal diameters on request
Film and fabric hoses with attached support spiral
Structure
Foil and fabric strips - helical, overlapping welded, with plastic or coated spring steel wire support spiral.
Advantages
- Variable production options for spiral hoses made of different materials, film or fabric strips.
- Highly flexible
- Smallest bending radii
- Production diameter depending on hose type from DN 32 - DN 450
Spiral hoses with seamless, outer plastic wall
Single and multi-layer spiral hoses made from vulcanised fabric strips
Construction
Overlapping, vulcanised fabric strips with exposed or embedded spring steel support helix on the inside and additional external glass fibre cord fixation, for hose types NEO 1/2 and SIL 1/2.
Advantages
- Variable production options for spiral hoses made of different materials, film or fabric strips.
- Smooth inner wall
- Flexible
- Small bending radii
- good pressure resistance
- Production diameters from DN 13 to DN 305
Inline and performance hoses
The production process for an inline or performance hose is the same as for a standard profile hose, except for the lining. First, a plastic granulate is melted and extruded into a plastic profile. A spring steel wire is moulded into a plastic profile to prevent twisting and sliding. The hose is then helically and overlappingly welded to give it its final shape. Shortly after welding, the hose is moulded from the inside with a cold-cast elastomer. The rotation of the hose creates the smooth inner layer in the hose. Our Master-PUR Performance has a wall thickness of 2.5 mm, whereas the Master-PUR Inline has a wall thickness of 5.5 mm.
Miniflex
Unlike our other hoses, our Miniflex hoses do not have a moulded spiral. The spiral is exposed on the inside of the hose. During production, a spring steel spiral is seamlessly coated on the outside with a thin TPU layer. The layer thickness is between 0.3 and 1.2 mm, depending on the wall thickness.