Vacuum hoses
The links below lead to hoses designed for conveying under vacuum. Some of them resist only partly against pressure.

ALLERIT SR
ALLERIT SR differs from spiral hoses in
that it is strengthened with a
steel ring as a vacuum support.
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ALLERIT SR is typically used as a suction hose to transport abrasive and corrosive suspensions and liquids. The advantages of this hose in this area of application are especially effective when it comes to large diameters. It guarantees a secure hose connection between connection points which carry out strong relative movements together during operation.
The core is technically smooth.The surface of the hose is fabric-textured and has wide corrugations.
NS [mm] | 150 – 200 | 250 – 350 | 400 – 600 |
---|---|---|---|
wall thickness [mm] | n.V. | n.V. | n.V. |
length by [m] | 20 | 20 | 12 |
NP [bar] | 25 | 16 | 16 |
bending ratio min. [R/NW] | 6 | 8 | 10 |
vacuum by [bar abs.] | 0,05 | 0,2 | 0,4 |

ALLERIT KM +P
These types of hoses are corrugated
both inside and outside;
in the external areas of the
corrugations a steel wire spiral is inserted.
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ALLERIT KM is specifically designed for use in road sweepers. For this area of application rubber mixtures with particularly high levels of tear resistance are used for the cores, this is due to the long operating life of the hoses when in use. ALLERIT P is a highly flexible suction hose which is preferably built in fixed. Its main area of application is for extracting exhaust fumes and vapours as well as transporting supply and discharged air.
Neither design is suitable for use under pressure. ALLERIT PD is the model that is suitable for use under light pressure.
Both the cores and the surfaces of the hoses are profiled.
NS [mm] | 30 – 50 | 55 – 80 | 85 – 100 |
---|---|---|---|
wall thickness [mm] | 4 | 4,5 | 5 |
length by [m] | 10 | 20 | 20 |
NP [bar] | 2 | 1 | 1 |
bending ratio min. [R/NW] | 3 | 4 | 5 |
vacuum by [bar abs.] | 0,3 | 0,5 | 0,7 |

ALLERIT G
ALLERIT G is a lightweight,
highly flexible suction hose.
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The core is technically smooth. The surface of the hose is fabric-textured and grooved.
NS [mm] | 30 – 50 | 55 – 80 | 85 – 100 |
---|---|---|---|
wall thickness [mm] | 4 | 4,5 | 5 |
length by [m] | 10 | 20 | 20 |
NP [bar] | 2 | 1 | 1 |
bending ratio min. [R/NW] | 3 | 4 | 5 |
vacuum by [bar abs.] | 0,3 | 0,5 | 0,7 |

ALLERIT SX
flexible suction excavator hose,
designed for cantilever arm
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The dredging hose for suction excavators with cantilever arm allows transport of highly abrasive material in a narrow bending radius.
The hose is suitable for hauling of sand, gravel, soil and
industrial sludges. Excluded from continuous hauling are
hazardous materials such as acids, bases, oils and solvents.
Technical parameters
- highly abrasion proof rubber wear layer
- bending-friendly construction with strong corrugation and flexible fabric
- high vacuum stability by spiral spring wire
- conductive rubber qualities, optional with protruding copper strands
- spiral-less, straight bushings for attachment
- standard dimensions: ND 250, length 6,85 m
and other dimensions
ND [mm] | 250 |
---|---|
wall thickness [mm] | 17 |
length up to [m] | 12 |
PN [bar] | 1 |
bending ration min. [R/ND] | 4 |
vacuum up to [bar abs.] | 0,1 |
weight [kg / m] | 19 |