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User’s manual
Suction Hose
92722, 92723, 92727, 92728, 92733–92735, 92748–92750, 92783, 92930–92932, 92936–
92947, 92951–92959
Illustration similar, may vary depending on model
Please read and follow the operating instructions and safety information prior to initial operation.
Technical changes reserved!
Illustrations, functional steps, and technical data may deviate insignificantly due to continuous further
developments.
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05 2022-1
The information contained in this document may alter at any time without prior notice. No part of this
document may be copied or otherwise duplicated without prior written consent. All rights reserved.
WilTec Wildanger Technik GmbH cannot be held liable for any possible mistakes in this operating man-
ual, nor in the diagrams and illustrations shown.
Although WilTec Wildanger Technik GmbH has made every possible effort to ensure that this operating
manual is complete, accurate, and up- -date, errors cannot be ruled out entirely.to
If you have found an error or wish to suggest an improvement, we look forward to hearing from you.
Send us an e-mail to:
service@wiltec.info
or use our contact form:
https://www.wiltec.de/contacts/
The most recent version of this manual in several languages can be found in our online shop:
https://www.wiltec.de/docsearch
Our postal address is:
WilTec Wildanger Technik GmbH
Königsbenden 12
52249 Eschweiler Germany
To return your goods for exchange, repair, or other purposes, please use the following address. Atten-
tion! To allow for a trouble-free complaint or return, it is important to contact our customer service team
before returning your goods.
Retourenabteilung
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler Germany
E-mail: service@wiltec.info
Tel: +49 2403 55592–0
Fax: +49 2403 55592–15
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05 2022-1
Introduction
Thank you for choosing to purchase this quality product. To minimise the risk of injury, we ask you to
always take some basic safety precautions when using this product. Please read this operating manual
carefully and make sure that you understand it.
Keep these operation instructions in a safe place.
Description and use
• This very flexible and light hose made of soft PVC is reinforced with an impact-resistant hard
PVC spiral.
• Connected to submersible and pond pumps in horticulture, the hose is particularly suitable for
water circuits.
Thermal behaviour of plastic hoses
• Unlike rubber hoses, the influence of low and high temperatures is very important for plastic
hoses. The flexibility of plastic hoses is altered with the medium or environment having low or
high temperatures. At lower temperatures, they can harden to the point of brittleness, and at
high temperatures close to the plastic-specific melting point, they can become plastic, i.e., de-
formable.
• Due to these properties, the pressure and vacuum specifications for plastic hoses are exclu-
sively linked to a temperature of +20 of the medium and environment. If the temperatures of ℃
the medium or environment deviate, compliance with the specified technical properties cannot
be guaranteed.
Influence of solar radiation on PVC hoses
• Solar radiation might attack PVC hoses and destroy them over time. This effect depends on the
duration and intensity of the solar radiation, normally lower in Northern Europe than in Southern
Europe. That is why an exact period cannot be indicated.
• The embrittlement of plastic hoses due to UV radiation can be greatly reduced by adding special
UV stabilisers, but cannot be completely prevented. For the stabilisers are also used up with
UV radiation persisting.
Pressure and vacuum behaviour of hoses
• Real pressure hoses are all those having a fabric as a pressure carrier. All types of hoses with
reinforcing plastic or steel spirals are first and foremost to be considered as vacuum hoses.
• Considering all types of hoses, it is important to point out that they can alter their length and
diameter or be twisted even within the indicated range of pressure and vacuum values. Even
under laboratory conditions, hoses with a fabric as a pressure carrier might normally alter their
length and diameter by up to 5 %. That is why all operating conditions that deviate from the
standard exert an additional influence on the products and their behaviour.
• All hoses reinforced with a spiral not made of polyester canvas, suitable as pressure hoses to
a very limited extent, are primarily intended for vacuum applications. Due to the construction, a
change in the length of these hose types of up to 30 % is always possible during use, even
within the specified pressure and vacuum values.
• The user must consequently consider all possible alterations in length and diameter and all
possible axial twists of the hoses that he applies. Hoses must not be fixed at short intervals like
pipes under operating conditions, but must always be able to move freely. In the ground, hoses
may only be laid in sufficiently large empty pipes. When doing so, the user must consider all
possible geometric alterations during application of the hoses.
• It is strongly recommended to perform tests to determine the behaviour of the individual hose
and to lay them consequently.
Produktspecifikationer
| Varumärke: | WilTec |
| Kategori: | ej kategoriserat |
| Modell: | 92728 |
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