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for hygienic-microbiologic testing according to the German Decree for Potable Water
Read installation and operating instructions in their
entirety before installing the valve
Installation, initial operation, operation and
maintenance must always be carried out by
qualified tradesmen
The installation and operating instructions, as well
as other valid documents, must remain with the
user of the system
Content
1 General information . . . . . . . . . . . . . . . . . . . . 3
2 Technical information . . . . . . . . . . . . . . . . . . . 3
3 Construction / Installation . . . . . . . . . . . . . . . 4
Illustr. 1.1 "Aquastrom P" – Water sampling valve
1 General information
1.1 Application / Water sampling duty
To ensure optimum water quality, the German Decree
for Potable Water (TrinkwV) and the DVGW work sheet
W 551 calls for an annual inspection of the potable
water quality in building installations delivering water
to the public (such as schools, kindergartens,
swimming pools, hospitals, pubs etc.) and in
commercial buildings (such as flats to rent, residential
complexes etc.). This applies to all large installations
with a potable water heater content of more than 400
l and/or a pipe content of more than 3 litres in each
pipe between the outlet of the potable water heater
and the draw off point.
The operator of the installation is obliged to have the
inspection carried out by an approved hygiene
laboratory. Water sampling can be carried out easily
by withdrawing water samples according to a
withdrawal scheme. For documentation purposes, the
individual sampling points are fixed as network points
with a position number. However, in practice, these
points do not feature a suitable extraction valve so
that the water quality inspection is very expensive and
time consuming.
"Aquastrom P" - Water sampling valve
Installation and operating instructions for the specialised installer
Oventrop developed water sampling valves sized DN 8
1
(G
⁄
) and DN 10 (G
4
according to the DVGW work sheet W551 or the
German Decree for Potable Water (TrinkwV). These
valves can be easily combined with the Oventrop
"Aquastrom" valve or any other valve with a suitable
1
3
G
⁄
or G
⁄
4
8
sampling valves feature an aluminium marking plate for
the fulfilment of the labelling obligation of the draw off
point according to DIN EN ISO 19458 chapter 3.
To avoid damage to the marking during disinfection,
the use of a marking stamp is recommended.
1.2 Copyright
The installations and operating instructions are
copyrighted.
1.3 Symbol explanation
Safety guidelines are displayed by symbols. These
guidelines are to be observed to avoid accidents,
damage to property and malfunctions.
WARNING
possible dangerous situation which may lead to death
or serious injury if the safety guidelines are not
observed.
NOTICE
2 Technical data
– Valve body made of bronze according to DIN EN
1982 and DIN 50930-6
– Stem made of stainless steel
– Discharge elbow made of stainless steel
– Connection DN8:
– Max. operating pressure:
– Max operating temperature: 90°C
– Operation with enclosed 5 mm Allen key
– Flame resistant for disinfection
– Stem seal: metal to metal/PTFE
– Metal plate for marking the sampling point according
to DIN EN ISO 19458 chapter 3
Valves, controls + systems
3
⁄
) for a cost effective inspection
8
connection nipple. Moreover, the water
WARNING
1
G
⁄
4
3
DN10:
G
⁄
8
PN10
indicates
a
(4209102)
(4209103)
3
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