Elster RGV Mode D'emploi page 12

Type RVG-ST threaded version:
– Suitable seals/gaskets for the relevant gases.
– You will require the following connection elements (which can be ordered from Elster-
Instromet) for installing the meter into the pipe:
1 Pipe
2 Insert
3 Union nut
4 O-ring
Figure 4: Connection elements for Type RVG-ST
Then install the meter (Type RVG and Type RVG-ST):
– gas-tight,
– with the supplied accessories,
– only in flow direction (as marked by an arrow on the meter housing or counter head S1D),
– only unstressed,
– the piston axes must be horizontal (
– when fitting the seals and gaskets, ensure that they are aligned concentrically and do
not project into the flow channel,
– weatherproof.
If you have specified the installation or operating position when ordering, all attachments will
have been fitted in accordance with the installation position ex-works.
© Elster GmbH · All rights reserved · Subject to technical modification
5 Threaded part
6 O-ring
7 Strainer
8 Retaining ring
1°),
Elster-Instromet
11