Marking Of The Fitting - Mankenberg EB 1.12 ATEX Originalbetriebsanleitung

Original operating manual
Bleeding and Venting Valves EB 1.12 ATEX
The upper limit of the permitted operating data for pressure and temperature is permanently marked on each
fitting supplied.
In the following sections three valve types are combined under the heading of "bleeding and venting valves"
apart from a few sections that only apply to the construction types mentioned.

3 Marking of the fitting

Each fitting bears the following markings as a minimum:
For Marking
Hersteller MANKENBERG
Fitting design Continuous bleeding and
venting valve + type or
twin bleeding valve + type or
start-up bleeding valve + type
Nominal diameter e.g. DN or G and numerical value
Rated pressure PN or Class and numerical value
Work pressure Operating pressure range and
numerical values
Max. permitted Temperature and numerical value
temp
Body material e.g. CrNiMo steel
Flow direction Indicated by an arrow
The markings (in the case of fittings made of deep-drawn stainless steel, they are etched into the body) should
neither be covered nor painted over, so that the fitting remains identifiable.
EB 1.12 ATEX-4.X.222 Issue 26.07.2022
Remark
See section Further information [} 24] for the
address
Design name as per accompanying
MANKENBERG data sheet
Numerical value for DN in [mm], for G in [inches],
DN given 2x for inlet and outlet side
Numerical value for PN in [bar], for Class in [lbs/
square inch] pressure data are displayed as
overpressure above the atmospheric pressure
values of upper and lower limits
Temperatures above 50 °C entail a reduced
pressure resistance. This must be considered for
the correspoding material in accordance with the
DIN EN 1092 standard
CrNiMo steel = high-alloy austenitic steel
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