Danfoss Кран запорно-регулирующий - Инструкция (Страница 5)

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Installation Guide JIP BaBV (PN25)
District Energy VI.KD.D1.0H DEN-SMT/SI
ENGLISH
1.0 Handling
1.1 Storage
- Storage temperature –20 to +65 °C dry;
free of dirt
- A desiccant or heating to prevent
condensation is necessary in damp
rooms.
- Don't damage the paintwork.
1.2 Transport
- Transport temperature –20 to + 65 °C.
- Protect against external force (impact,
vibration etc.).
- Don't damage the paintwork.
1.3 Handling before installation
- If flange covers are fitted, remove
shortly before installation!
- Protect against atmospheric conditions
e.g. wetness (use a desiccant).
- Correct handling protects against
damage.
2.0 Description
2.1 Scope of applications
Line regulating valves with a defined
characteristic for heating and cooling
systems. The plant designer is responsible
for selecting the correct valve for the
purpose.
Note: Do not use BaBV valves for handling
steam!
2.2 Operating principles
The flow is reduced (cone/seating function)
by turning the hand wheel clockwise.
- Position of the plug at DN 50 - 150 is
shown on two digit display. The outer
digit shows the basic setting and the
internal digit shows every tenth of the
turn.
3.0 Installation
General notes on installation:
The following points should be taken into
account besides the general principles
governing installation work:
- Remove flange covers if present.
- There must be no foreign bodies inside
the valve or piping.
- Valves can be installed with the spindle
pointing in any direction, but the
preferred spindle position is vertical.
- Reference for insulation:
If media-temperatures < ambient
temperatures - ask manufacturer.
- Installation upside down only if the
medium is clean.
- Connection flanges must be properly
aligned.
- All parts must be free from stress after
installation.
- The valve must not serve as a fixed
point. It must be carried by the piping.
- Protect the valve from dirt, especially
during construction work.
- Install compensators to compensate for
thermal expansion of the piping.
- It is forbidden to heat the valve to
above its service temperature (see
data sheets), for instance by welding,
grinding, etc.
- To ensure that flow settings are correct,
the pipe run should be straight for at
least 5D upstream and 2D downstream
of the valve.
4.0 Presetting and locking the
handwheel
❶ Position of the plug is shown on two
digit display. The outer digit (a) shows
the basic setting and the internal digit
(b) shows every tenth of the turn.
❷ Turn the hand-wheel clockwise to
minimum flow. Digital display shall
show 0,0. Turn the hand-wheel
counter clockwise to required value of
presetting by using the setting table.
❸ DN 50-80: Optionally you can lock the
hand-wheel and protect the setting.
Thread the sealing wire (c) through
the holes on hand-wheel and secure it
around the handle. Fit the lead seal.
❹ DN 100-150: Optionally you can lock
the hand-wheel and protect the setting.
Fit the enclosed clip (d) in the cut-out
in the hand-wheel. Thread the sealing
wire (c) through the holes on hand-
wheel and secure it around the handle.
Fit the lead seal.
❺ Commissioning
Connect differential pressure meter
(f.e. PFM 4000/5000) to rectus nipples.
Pay attention to direction of the flow
to avoid wrong measurments of the
differential pressure. In order to safety
and properly make the commissioning,
follow the instructions of differential
pressure meter (f.e. PFM 4000/5000).