Ari-armaturen STEVI 462 DIN-DVGW EN User Manual download pdf

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

Care and maintenance 1

Summary of Contents

Page 1 - Care and maintenance

Rev. 0040305001 1810 Page 1Annex for Operating and installation instructionsSTEVI®470/471, STEVI®422/462 DIN-DVGWGeneral information on operating inst

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Ari-armaturen STEVI 462 DIN-DVGW EN User Manual

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