Applied Standards And Directives; Marking Of The Valve - Mankenberg UV Originalbetriebsanleitung

Original operating manual
spring-actuated pressure control valves UV

3 Applied standards and directives

The indicated product is designed according to the AD 2000 regulations without the data sheets S1 and S2.

4 Marking of the valve

Each valve bears the following markings as a minimum:
For Marking
Manufacturer Mankenberg
Valve design Pressure reducing valve +
type
back pressure regulator +
type
vacuum control valve +
type
differential pressure
control + type
flow control valve + type
Nominal diameter e.g. DN or G and
numerical value
Nominal pressure PN or Class and numerical
value, or P
Pressure range Pressure range and
numerical values
Max. permitted Temperature and
temp. numerical value
Body material e.g. CrNiMo steel
Flow direction Indicated by an arrow
ATEX protection e.g. Ex II 2G Ex h IIB
class
The markings (in the case of valves made of deep-drawn stainless steel, they are etched into the body) should
neither be covered nor painted over, so that the valve remains identifiable.
UV-4.X.23.2 Issue 16.08.2023
Further information for safe use
See section
addresses.
Design name as per accompanying Mankenberg data
sheet
Numerical value for DN in [mm], for G in [inches]
Numerical value for PN in [bar], for Class in [lbs/square
inch].
S
Unless otherwise indicated, all data give the
overpressure above atmospheric.
If two numerical values are given, these apply to the
inlet and outlet pressure.
Temperatures above 50 °C entail a reduced pressure
resistance. This must be considered for the
corresponding material in accordance with the DIN EN
1092 standard.
CrNiMo steel = high-alloy austenitic steel
Only for devices with conformity certification according
to ATEX
8
Further information [Page 24] for the
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