Siemens VPF53.125F110 Handbuch - Seite 12
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Materials
Dimensions / weight
General ambient conditions
Application examples
12 / 14
Siemens
Building Technologies
Valve body
Stem, spring
Trim
Regulator
Seals
Dimensions
Flange connections
Pressure test points (P/T-ports)
Weight
Environmental conditions
Temperature
Humidity
It is recommended to use Combi valves in plants with variable speed pumps. When
sizing the pump, it must be made certain that the most critical branch or consumer
in the system – usually the remotest from the pump – gets enough pressure (pump
head).
Combi valves PN 25 with flanged connections
Nodular cast iron GJS-400
Stainless steel
Brass (DZR)
Stainless steel
EPDM
Refer to "Dimensions" on page 13
To ISO 7005-2
G ¼ inch (connection)
2 mm x 40 mm (measuring tips)
Refer to "Dimensions" on page 13
Operation
Transport
EN 60721-3-3
EN 60721-3-2
Class 3K5
Class 2K3
0...55 °C
-30...65 °C
5...95 % r.h.
< 95 % r.h.
Storage
EN 60721-3-1
Class 1K3
-15...50 °C
5...95 % r.h.
CE1N4316en
2018-04-18