Richter MNKA-B Series (ASME) - Manual (Page 9)

Installation and Operating Manual
Series MNKA-B, acc. to ASME/ANSI
9250-055-en Revision 01
TM 5976 MPE/Wm Page 9 Edition 10/2004
If the unit is not installed immediately after delivery, it
must be put into proper storage.
It should be stored in a dry, vibration-free room as at
constant a temperature as possible.
If magnetic drives are stored as single parts,
the relevant notes in Section 7.5.2 are to be
observed.
In the case of prolonged storage conservation
agents on machined component surfaces and packing
with a desiccant may be necessary.
3.1 Return consignments
Pumps which have conveyed aggressive or
toxic media must be well flushed and cleaned
before being returned to the manufacturer's
works.
A General Safety Certificate on the field of
application is to be enclosed with the returned goods.
Pre-printed forms are enclosed with the installation
and operating manual.
Safety precautions and decontamination methods are
to be mentioned.
4 Product description
The housing (casing) dimensions, nominal ratings and
technical requirements of the pump series MNKA-B
correspond to ASME B73.3M, ISO 15783 / DIN ISO
5199.
The sectional drawing shows the design of the
pump. See Section 9.1.
All components which come into contact with the
medium are either plastic-lined or made of other
resistant materials, e.g. silicon carbide.
The housing (casing) 100 consists of a metallic shell
with a plastic lining.
The bearing bushes 545 are secured against turning
in the plain bearing pedestal 339. The bearing sleeves
529/1 are secured against turning in the impeller 230
or the bearing sleeves 529/1 in the inner magnet
assembly 859.
The distance ring 504 prevents the two bearing
sleeves 529/1 and 529/2 from rubbing together during
assembly. The can (containment shell) 159 is made of high-
resistance, carbon fibre composite material. It is
protected against the medium by a can (containment
shell) insert 158 made of resistant plastic.
Special designs:
A vacuum-proof can (containment shell) unit is
produced by gluing the can (containment shell) to
the can (containment shell) insert.
The flushing flow flows through the bores in the plain
bearing pedestal 339 into the can (containment shell)
chamber.
From there it is returned into the housing (casing)
through the plain bearings.
The can (containment shell) chamber is also vented
and evacuated through
the bores in the plain bearing
pedestal 339.
Additional information is provided in the brochure and
the Product manual.
5 Installation
5.1 Safety regulations
Equipment which is operated in potentially
explosive areas must satisfy the explosion
protection regulations.
People with a pacemaker are at risk from the
strong magnetic field of the magnetic drive. It
may be life-threatening for them to stay at a
distance of less than 20” (500 mm) to the pump.
5.2 Installation of pump/unit
The structural work must be prepared in accordance
with the dimensions in the installation drawing.
Method of installation: on a grouted base plate and
firm foundation:
Align base plate on the ground foundation.
Insert foundation bolts and grout base plate.
Do not tighten the foundation bolts uniformly and
firmly until the mortar has set.
5.3 Alignment of pump-coupling-
motor
The following information is of a general nature. If
necessary, special notes of motor manufacturer are to
be observed.
Align unit so that it is free of tension and tighten
bolts.
Use supports in the direct vicinity of the bolts
foundation/base plate.