Installation; General Notes - Mankenberg UV 5.1 ATEX H2 Betriebsanleitung

Supplement to the Operating Instructions for
Back pressure regulators UV 5.1 ATEX H2
» When the fitting is stored prior to installation, it should be kept in closed rooms and protected against
harmful influences such as dirt, moisture and frost.
» In special cases, the fitting is supplied free of oil, grease or silicone and is marked accordingly. A fitting such
as this must not come into contact with oil/grease/silicone during storage and handling (particularly when
subsequently unpacked).
» A MANKENBERG fitting generally has functional and/or sealing parts made of elastomer materials. These
cannot be stored for an unlimited period.
ISO 2230 describes the storage conditions for elastomers in detail and specifies the
permissible storage period.
Functional and sealing parts must be replaced well before the storage period expires.
note
They are available from MANKENBERG as a "service set". See also Section Troubleshooting
help [} 20].
MANKENBERG fittings of small and medium nominal diameters are largely made of stainless
steel (high-alloy CrNiMo steel).
note If, under exceptional circumstances, fittings are stored in a unpacked state, they must be
protected against ferritic dust to avoid corrosion.
The fitting is generally not capable of standing alone:
The spring module may have a greater weight/volume than the basic body with its pipe
connections.
note
Handle with care so that the fitting does not tip over during transport/storage..
» Pressure-regulating valves are generally supplied with a slackened spring. The spring must not be
pretensioned by means of the adjusting screw until after it has been installed, during initial start-up.

7 Installation

7.1 General notes

The same installation regulations apply to a fitting as to the system into which it is installed. The following
additional notes apply:
» Section Transport and storage [} 10] should also be observed during transport to the installation site.
» The installation site to allow perfect functioning of a fitting should be a section of pipe without any flow
disruptions, without any angles and without any restrictors or shut-off devices close to the fitting, either
upstream or downstream (optimum distance = 10 x DN). If this does not apply, the installation situation
should be checked with the plant operator and/or MANKENBERG.
» The statics of the pipeline must be designed so as to take account of the weight of the fitting – particularly
those with an eccentric mass. If required, the pipeline may have to be properly supported on both sides next
to the fitting (or at the fitting itself) – particularly in the case of fittings with a substantial mass and especially
if vibrations are to be expected in the system. When the fitting is supported, it is important to check that all
functioning parts (adjusting screws, springs) remain capable of moving freely and are not blocked.
» The fitting must not be coated with thermal insulation.
» The fitting must not be coated with thermal insulation.
UV 5.1 ATEX H2-4.X.22.5 Issue 21.12.2022
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