Technical Data; Information For Use; Corrosion - Viega G2101 Instructions For Use Manual

2.3.5

Technical data

2.4

Information for use

2.4.1

Corrosion

Gas ball valve
Observe the following operating conditions for the installation of the
model:
Use
Operating tempera-
ture
Operating pressure
1)
Maximum pressure – equates to the pick-up pressure of the SSV in
the pressure regulating valve
2)
Operating pressure at HTR requirement max. 0.1 MPa (1 bar) (GT1)
In accordance with the applicable regulations, the scope of the oper-
ating temperature is between -20 °C and +60 °C, see
„Standards and regulations" on page 6 .
Depending on the area of use, corrosion protection measures may have
to be taken into account.
One differentiates between external pipelines (underground and over-
ground external pipelines), as well as internal pipelines.
For corrosion protection, comply with the applicable directives, see
Ä Chapter 2.1 „Standards and regulations" on page 6 .
Overground pipes and fittings in rooms do not normally require external
corrosion protection.
There are exceptions in the following cases:
There is external contact with materials containing chloride.
n
n Stainless steel pipes must not come into contact with building mate-
rials or mortar containing chloride.
There is contact with aggressive building materials such as materials
n
containing nitrite or ammonium.
n in aggressive surroundings
Gas installation Liquid gas installation
-20° C up to +70° C -20° C up to +70° C
≤ 0.5 MPa (5 bar)
(MOP 5)
≤ 0.1 MPa (1 bar)
(HTR / GT1) 2)
Product information
≤ 0.5 MPa (5 bar)
1)
(MOP5)
≤ 0.1 MPa (1 bar)
(HTR / GT1) 2)
Ä Chapter 2.1
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