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2.3.3
Sealing elements
Area of use of the EPDM sealing element
Area of use
Use
Operating temperature
[T
]
max.
Operating pressure [P
max
Comments
1)
Consultation with the Viega Service Center required.
2.3.4
Markings on components
Easytop ball valve with SC-Contur
Viega press connections are equipped with the SC-Contur. The SC-
Contur is a safety technology that is certified by the DVGW and ensures
that the connection is guaranteed to be leaky in an unpressed state. In
this way, unpressed connections are noticed immediately during a
leakage test.
Viega guarantees that unpressed connections are visible during a
leakage test:
with wet leakage test in the pressure range from 0.1 hPa–0.65 MPa
n
(1.0 mbar–6.5 bar)
with dry leakage test in the pressure range from 22 hPa–0.3 MPa
n
(22 mbar–3.0 bar)
NOTICE!
Only EPDM sealing elements are approved in potable water
installations. The use of other sealing elements is not per‐
mitted.
The model is factory-fitted with EPDM sealing elements.
Potable water
all pipeline sections
70 °C
]
1.0 MPa (10 bar)
see notes
Ä Chapter
2.2.2 „Media" on page 8
The press connections are marked with a coloured dot. This identifies
the SC-Contur, where the test medium would escape in the case of an
inadvertently unpressed connection.
The model is marked as follows:
noise class I pursuant to applicable regulations, see
n
from section: Marking on components" on page 7
dimension
n
Heating
Pump hot water heating
system
80 °C
1.0 MPa (10 bar)
—
Product information
Compressed air
all pipeline sections
60 °C
1.0 MPa (10 bar)
dry, oil content
< 25 mg / m
3
Ä „Regulations
10 from 19
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