MAS NMM 32-160 User Manual

NMM Series
Close Coupled Centrifugal Pump
General Information Mas Grup
1
Fields of Application
 Water supply and booster stations.
 Irrigation, overhead irrigation and draining.
 Filling and emptying of tanks and containers.
 Circulating of hot and cold water in central heating and
air-conditioning installations.
 Pumping of condensate.
 Water circulating for swimming pools.
 Sanitary and cleaning installations.
 For industrial applications and public services.
 Fresh water supply on ships.
Pumped Liquids
Thin, clean, non-aggressive and non-explosive liquids
free from large solid particles or fibres.
For special applications, please consult to MAS DAF
MAKİNA SAN. A.Ş.
Design
 NMM series pumps are volute casing, single stage, end
suction, close-coupled centrifugal pumps with closed
impeller and mechanical seal.
 Main dimensions and the nominal flow rates of the
pumps comply with the DIN 24 255 and EN 733
standards.
 Pump flanges sizes according to ISO 7005-2, DIN 2533
and PN 16.
 Single entry, closed impeller is hydraulically thrust
compensated and dynamically balanced.
 A drain plug is fitted in the bottom of pump housing.
 Pump and motor are separate components. Motor shaft
is passed into the pump shaft for coupling. After a
certain motor power, a coupling system is used
between the motor shaft and pump shaft.
 Maintenance is very much easier, the impeller shaft and
other rotating parts being removable with no need to
disconnect the suction and delivery pipes, due to back
pull-out design.
 Maximum interchangeability of components, identical
parts can be used along various pumps of the NMM
series, which greatly simplifies and reduces stock of
spare parts in addition to reduced delivery times.
 Single-stage centrifugal pump coupled by means of a
support, to a standard asynchronous motor, closed
type, with external ventilation.
 NMM series are fitted with mechanical shaft seal and
pump shaft is supported by motor bearings.
Shaft Seal
Single mechanical seal, flushed by pumped liquid,
uncooled, unbalanced, heavy duty and rubber bellows
mechanical seals are used for sealing.
On the series production, BURGMANN MG1 type mech.
seals are used for operation pressures up to 10 bar and
for clean, non-aggressive liquids. Different types are
available for harder operation conditions. Please refer to
MAS DAF MAKİNA SAN. A.Ş.
Technical Data
 Suction Flange : DN 50... DN 150
 Discharge Flange : DN 32...DN 125
 Operating Pressure : 10 Bar
 Casing Test Pressure : 13 Bar
 Operating Temperature : -25 – 120°C
 Impeller Diameter ø : 123...428 mm ø
 Speed Range : 1450 – 2900 RPM
 Capacity Range : 5 – 400 m³ / h
 Head Range : 4 - 110 m
Flanges
 Discharge Flanges : DIN 2533 – PN 16
 Suction Flanges : DIN 2533 – PN 16
Driver
B5 flanged, IP 55 and according to IEC electric motors
are used for NMM series pumps. 50 Hz and 60 Hz can be
used.
Identification Code
Example: NMM 50 - 250
Pump Type
Discharge Branch
Nominal Diameter (mm)
Nominal Impeller
Diameter (mm)

MAS NMM 32-160 Specifications

General

Brand	MAS
Model	NMM 32-160
Category	Water Pump
Language	English