GENERAL DESCRIPTION
DESMI Pumping Technology A/S
Tagholm 1
9400 Nørresundby
– Denmark
Tlf. nr.: +45 96 32 81 11
Fax +45 98 17 54 99
5
E-mail: [email protected] www.desmi.com
1.
GENERAL DESCRIPTION
These operation and maintenance instructions apply to both DESMI NSL pumps in Monobloc and
Spacer design. After the publish of this manual, the original manual will no longer apply to the
products for subsequent shipments. But the original manual still applies to the past or in-use
products. Desmi reserves the right to make any type of update, without prior notice and obligation
to update previous manuals. The latest version of the manual is acquirable by scanning the QR
code in the front page of this manual.
The pump is particularly suitable for the pumping of water in connection with cooling systems,
cooling of diesel engines, as bilge pumps, ballast pumps, fire pumps, brine pumps, pumps for
irrigation, fish farms, water works, district heating, salvage corps, army and navy, etc.
The pump is a single-stage vertical "in-line" centrifugal pump (i.e. horizontal inlet and outlet on the
same line) equipped with stainless steel shaft, mechanical shaft seal, and closed impeller.
The pump shaft, with or without ball bearing mounted on it, is coupled with electric motor shaft
either by rigid coupling or by flexible coupling.
The pump suction and discharge ports are casted flanges which comply with European Union
flange standards as well as other compatible flange standards , e.g., ASME, ISO and JIS
standards.
The pump has various options and combinations for the wet part material to fulfil desired
applications. The options and combinations include cast iron, copper alloy and stainless steel in
different grades.
The pump couples with electric motors that comply with IEC or NEMA standards. The pump can
also be customized to couple with other kinds of engines, e.g. hydraulic motor, diesel engine,
which is special engineering to order products and specific operation and maintenance instructions
are applied.
The operation and maintenance instructions include descriptions for two product groups based on
their different designs, ø215/265 and ø330/415/418/525. The numbers refer to the standard
impeller diameter of the pump.
Ø215/265:
Pumps with ø215 or ø265 impellers:
The impeller is equipped with one sealing ring. The line through inlet and outlet is flush with the
center line of the shaft.
Ø330/415/418/465/525:
Pumps with ø330, ø415, ø418, ø465 or ø525 impellers:
The impeller is equipped with two sealing rings. The line through inlet and outlet is offset in relation
Summary of Contents for NSL 100-215
Page 2: ......
