Mankenberg UV 3.0 ATEX Originalbetriebsanleitung Seite 12

Original operating manual
Back pressure regulators UV 3.0 ATEX
A MANKENBERG fitting made of "high grade" or "high grade pure" stainless steel (austenite,
e.g. 1.4404 or 1.4435) does not need any surface protection for normal environmental
atmosphere and for normal weather conditions.
note
External parts of the fitting made of low-alloy or non-alloy materials that are supplied ex-works
with a primer have to be provided with a suitable coating by the customer.
caution:
Never paint over the marking(s) of the fitting (either etched into the body or on nameplate).
In addition, the following applies to the pipeline connection:
with flanges:
The sealing surfaces on the body of the fitting are formed in accordance with the
MANKENBERG order confirmation. The accompanying flange seals are generally not
included in the MANKENBERG supply schedule.
note
» During installation, centre the fitting by means of the flange screws on the mating flange before the screws
are tightened.
with screw-mountings:
The connecting surfaces on the body of the fitting are formed in accordance with the
MANKENBERG order confirmation. The required seals are generally not included in the
MANKENBERG supply schedule..
note
with welding ends:
» Properly performed welding must ensure that no significant tension is transferred to either the section of
pipeline or the body of the fitting.
» Under no circumstances may the body of the fitting exceed the temperature marked on it; otherwise the
sealing and functional parts will be damaged and the whole fitting will become unserviceable.
When a fitting with a body made of "high grade" or "high grade pure" deep-drawn parts (vi-
sible on the body connection with clamp rings) is welded, the welding joint must be carried out
with special care; it is recommended that the body should be kept cool with a damp cloth.
caution
Failure to observe this instruction may cause distortion of the fitting body:
even 0.1 mm of permanent distortion in the seat region may render the fitting unserviceable.
UV 3.0 ATEX-4.X.222 Issue 18.07.2022
12
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