Danfoss MSV-F2 (DN 15-400) - Manual (Page 2)

DH-SMT/SI VI.B1.B4.1E © Danfoss 11/2007 2
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 maintenance !
- Protect against atmospheric conditions
e.g. wetness (applicate 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 plan designer is responsible
for selecting the correct valve for the
purpose.
Note: Do not use MSV-F2 valves for
handling steam!
2.2 Operating principles
The valve is closed (cone/seating function)
by turning the hand wheel clockwise.
- Position of the plug at DN 15 - 150 is
shown on two digit display. The outer
digit shows the basic setting and the
internal digit shows every tenth of the
turn. See Fig. 1.
- Position of the plug at DN 200 - 400 is
shown on the longitudinal scale. Fig. 2.
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.
- Pay attention to the direction of flow:
see markings on the valve
- Valves can be installed with the spindle
pointing in any direction, but the
preferred spindle position is vertical.
- Reference for isolation:
If media-temperatures < ambient
temperatures - ask manufacturer.
- Installation upside down only if the
medium is clean.
- Centre packings between the flanges.
- Install measuring nipples before valve
is filled with water. See accessories in the
datasheet MSV-F2.
- Connection flanges must mate exactly.
- 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 the valves function
correctly, the pipe run should be
straight for at least 5D upstream and 2D
downstream of the valve.
4.0 Presetting and locking the
handwheel
4.1: DN 15 - 150:
a: Position of the plug at DN 15 - 150 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. See Fig. 4.
b: Remove cover plug (c) by introducing
a screwdriver in the slot and gently
prising it out. See Fig. 5.
c: Turn the hand-wheel clockwise and
close the valve fully. Digital display
shall show 0,0. Turn the hand-wheel
counter clockwise to required value of
presetting by using the setting table
(i.e. 4,5, see Fig. 4).
d: Turn the inner adjustment screw (d)
clockwise until it seats. Use enclosed
3mm allen key for DN 15 - 50 and 4 mm
allen key (e) for DN 65 - 150. The valve
now can be closed, but not opened
more than the setting value. See Fig. 5.
e: Optionally you can lock the hand-wheel
and protect the setting. Fit the enclosed
clip (f) in the cut-out in the hand-wheel.
Thread the sealing wire (g) through the
holes on the clip, hand-wheel and lead
seal. Fit the lead seal. See Fig. 6.
4.2: DN 200 - 400
a: Turn the hand-wheel clockwise and close
the valve fully by hand (“0” position).
b: Unscrew the cap (h). See Fig. 7.
c: Turn the hand-wheel counter clockwise
to required value of presetting by using
the setting table.
d: Turn the stroke limiter (i) clockwise until it
seats. Protect it by fixing the lock nut (j).
e: Screw on the cap.
ENglISH