User Manual

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Siemens Control device PN25, safety function to DIN EN 14597 CE1N4389en
Building Technologies 10.01.2011
A damaged housing or cover represents an injury risk.
• NEVER uninstall an actuator from the valve.
• Uninstall the valve-actuator combination (actuating device) as a complete
device.
• Use only properly trained technicians to uninstall the unit.
• Send the actuating device together with an error report to your local Sie-
mens representative for analysis and disposal.
• Properly mount the new actuating device (valve and actuator).
Parts could fly ultimately resulting in injuries from uninstalling an actuator with a
damaged valve housing due to the tensioned return spring.
It is not permitted to replace the sealing glands. In case of leakages, the control
device has to be replaced as a whole unit else TÜV approval for the safety function
to DIN EN 14597 ceases.
Disposal
The device contains electrical and electronic components and must not be dis-
posed of together with domestic waste. This applies in particular to the PCB.
Before disposal the valve must be dismantled and separated into its various con-
stituent materials.
Legislation may demand special handling of certain components, or it may be sen-
sible from an ecological point of view.
Current local legislation must be observed.
Warranty
The technical data relating to specific applications are valid only in conjunction with
the control devices listed in this data sheet under «Type summary», page 2.
Approv
al as actuating device with safety function as per DIN EN 14597 ap-
plies to the entire actuator. Approval as actuating device with safety function
as per DIN EN 14597 expires if the actuator is separated from the valve. This
also voids any guarantees on the part of Siemens Switzerland Ltd.
Technical data
MKB532..G MKB562..G
Valve
PN class PN 25 to ISO 7268
Working pressure to ISO 7005 within the permissible “working pressure and medium
temperature” according to the diagram on page 7
Flow characteristic
0…30 %
30…100 %
linear
equal percentage; n
gl
= 3 to VDI / VDE 2173
Leakage rate 0…0.05 % of k
vs
value to DIN EN 1349
Permissible media
Saturated steam, super-heated steam;
dryness at inlet minimum 0.98
Media temperature
+1…180 °C
≤ 600 kPa (6 bar)
Rangeability S
v
DN 15: 50…100
DN 25…40: 100…200
Materials
Valve body Nodular cast iron EN-GJS-400-18-LT
Stem Stainless steel
Plug, seat Stainless steel
Sealing gland Stainless steel
Gland materials PTFE sleeve
Warning
Sealing gland