ARI Armaturen STEVI 462 DIN-DVGW EN - Manual

Rev. 0040305001 1810 Page 1
Annex for Operating and installation instructions
STEVI
®
470/471, STEVI
®
422/462 DIN-DVGW
General information on operating instructions
This annex applies only to supplement the operating instructions for control valves
„STEVI
®
470-G/471-G“ and „STEVI
®
422-G/462-G“, DIN-DVGW type approved version acc.
to EN 13611.
Marking
Requirements at the place of installation
To prevent penetration of foreign particles, a strainer with a maximum mesh size of 1,5 mm
has to be provided before the valve in the pipeline.
Installation instructions concerning actuators
Normally, control valves are supplied complete with fitted actuators. A later attachment of
an actuator is only allowed with the consent of the valve manufacturer. The provided
actuators must ensure the actuating force for a proper function of the control valve and
meet the requirements of DIN EN 13611.
Care and maintenance
For the lubrication of the stem sealing and stem guids only DIN-DVGW tested lubricants
must be used, e.g. Fa. Bechem Ceritol PG3F.
ATTENTION !
- Existing operating instructions (of each valve, of the actuator and further acces-
sories) have to be observed!
Fig. 1
CE-marking
Notified body
Manufacturer
Nominal pressure
Nominal diameter
Type-Number
perm. operating /
DVGW Reg.-Nr.
Kvs-value
Flow characteristic
Serial-No.
Year of manufacture clear speech
(1. and 2. position)
Plug
design
differential pressure