DUKER 304 Manuel d'utilisation - Page 3

Parcourez en ligne ou téléchargez le pdf Manuel d'utilisation pour {nom_de_la_catégorie} DUKER 304. DUKER 304 14 pages. Underground fire hydrants

1. Intended Use

After the installation into a pipe system, shut-off valves are only intended for stopping or

allowing media to

pass within the range of the permitted operating conditions (temperature and pressure limit

"PN" labeling on

the valve, unless stated otherwise).

These valves are preferably intended for liquid media, such as drinking water, process water, raw and

waste water. Any deviating operating conditions or areas of application are subject to manufacturer

approval.

We will not assume any responsibility for consequential damage caused by



unauthorized modification of the valve and the accessories supplied



improper operating or operating conditions



acts of God

Continuous operation of the valve in an intermediate position will lead to increased wear of the valve

or the subsequent pipe system up to total destruction and should therefore be avoided.

Cavitation can be identified among other things by:



Increased noise level



Crackling noise



Severe vibrations

Cavitation can be avoided by operating the valve only in fully OPENED or fully CLOSED position.

2.1. General safety instructions

The same safety regulations apply for valves as for the pipe system in which they are installed. The

following instructions only include additional safety instructions to be observed for valves.

2.2. User safety instructions

The operator of the valve must ensure that the valve is only used in accordance with the intended use.

This is not the responsibility of the manufacturer. The valve may only be operated by properly qualified

and trained staff. The operating manual and the corresponding safety instructions must be read

and understood.

It is prohibited to use any valves with a nominal pressure ("PN") and maximum admissible operating

temperature insufficient for the operating conditions.

The approved range is indicated on the valve.

Warning: Temperatures below 10°C and above 40°C during work on the pipeline parts involve the risk of

injury. Protective measures must be taken accordingly.

Operating media must correspond to the specification of the valve. The manufacturer does not

01/042017

Düker GmbH, www.dueker.de