Data Sheet for Product

3/10
Siemens MiniCombiValves (MCV) CE1N2185en
Smart Infrastructure 2020-01-09
Technical note
NO valves
• Valve is open without actuator (normally open) and the valve stem is
extended.
• Examples: Radiator valves VDN.., VEN.., VUN.. or
MiniCombiValves VPD.. and VPE..
NC valves
• Valve is closed without actuator (normally closed) and the valve stem
is extended.
• Example: Small valves V..P47..
NC function
• STA .. actuator stem is extended, when de-energized.
• NO valve is closed (e.g. VPD.., VPE.., radiator valve).
NO function
• Valve is open, when de-energized.
• STP.. actuator is required.
STA..
STP..
Actuator de-energized
Radiator valves
• VPD.., VPE..
closed
open
1)
1)
Not applicable with DESIGO RX..
Technical design / mechanical design
• Control valve for influencing the volumetric flow and pressure controller for auto-
matic balancing
• Compensation of differential pressure variations with complete hydraulic decou-
pling of consumers
• Manual adjustment for shutoff and temporary operation of heating plant during the
construction phase. A constant flow rate is also ensured in manual operation, inde-
pendent of the differential pressure
1 Stroke limiter for preadjustment and
shutoff
2 Sealing gland with blocking
protection
3 Connecting piece for actuator
4 Valve plug (made of plastic, soft
shutoff)
5 p controller (made of plastic, hard
shutoff)
6 Stem sealing
7 Diaphragm
8 Stamp indicating effective pressure
and volumetric flow (e.g. B-200)
NO, NC valves
Valve and actuator
combinations
Application note
Functions
Construction
Straight valve VPD..