Data Sheet for Product

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Siemens Combi valves, PN 25 CE1N4855en
Smart Infrastructure 2020-10-19
Installation notes
Prior to mounting the actuator, the presetting is to be made as follows:
Presetting DN 10…32:
1. Remove control knob from
Combi valve.
2. Loosen knurled nut. 3. Adjust the desired dial set-
ting with the white knob.
4. Retighten knurled nut by
hand.
Presetting DN 40…50:
1. Loosen spindle head 2. Adjust the desired dial set-
ting with the white knob.
3. Retighten spindle head -
by hand only
Volumetric flow V / V
100
stroke H / H
100
Commissioning notes
The valves must be commissioned with the manual control knob or actuator
correctly fitted. Strong pressure impacts can damage closed Combi valves.
The Combi valves have to be open when flushing or pressure testing the sys-
tem. Flush only in correct flow direction. Strong pressure impacts can dam-
age closed Combi valves.
Differential pressure Δp
max
across the valve’s control path is not allowed to
exceed 600 kPa.
Valve characteristic
VP..46.., VP..46..Q