Siemens VBI60.25-9L Manual - Página 9

Procurar online ou descarregar pdf Manual para Unidade de controlo Siemens VBI60.25-9L. Siemens VBI60.25-9L 18 páginas. 2-port shutoff valves and 3-port changeover ball valves, pn 40, with internally threaded connection
Também para Siemens VBI60.25-9L: Instruções de montagem (4 páginas), Instruções de montagem (4 páginas)

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Siemens VBI60.25-9L Manual
Notes
Safety
There is a risk to operating personnel and device when working on the unit
Failure to comply with these safety notes can result in personal injury and damage to
property from pipe pressure, electrical voltage, or device in operation.
 Note the following when servicing a ball valve/rotary actuator:
●
Switch off both pump and operating voltage.
●
Close shutoff valves.
●
Release pressure in the pipes and allow them to cool down completely.
●
Disconnect electrical connections from the terminals as needed.
●
The rotary actuator must be properly installed prior to recommissioning the ball valve.
National safety regulations
Failure to comply with national safety regulations may result in personal injury and property
damage.
●
Observe national provisions and comply with the appropriate safety regulations.
Engineering
We recommend installing the ball valve with spring return since temperatures are lower on
heating plants which increases the lifespan of the sealing gland on the stem.
Ensure there is no cavitation (see Section Technical design [➙ 2]).
A filter must be installed upstream of the ball valve to increase functional safety.
Permissible media
Using the ball valve together with potassium formate-based media can result in leakage over
the stem to the outside. The reason is the high level of penetration at low surface tension of
media based on potassium formate.
Siemens rejects any and all liability for damages or consequential damages resulting from
the use of this media together with our ball valves.
Mounting
It is easy to assemble the ball valve and rotary actuator; it can be done at the construction
site. No special tools or settings required.
Ball valve VAI60.. / VBI60.. is supplied together with mounting instructions M4213
(74°319°0883°0).
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CE1N4213en
2020-02-20