DESMI Pumping Technology A/S
4
Tagholm 1
9400 Nørresundby
– Dänemark
Tlf. nr.: +45 96 32 81 11
Fax +45 98 17 54 99
E-mail: [email protected]
2.2 EXPLANATION OF THE TYPE NUMBER
All the S-N pumps are provided with a name plate. The type number indicated on the name plate is
built up as follows:
SXXX-YYY-ZZZN-MR
XXX, YYY, ZZZ : Pump size where
XXX = Suction branch diameter, YYY= Pressure branch diameter,
ZZZ = Standard impeller diameter.
M : The material combination of the pump.
R : The assembly combination of the pump.
M may be the following:
A : Standard. Casing: GG20. Impeller: AlBz.
C : All cast iron.
D : Casing: RG5, Impeller: AlBz.
E :
Casing and shaft seal cover: NiAlBz and bronze alloy. Impeller and sealing rings: NiAlBz
.
U : Nonmagnetic
The pumps can be delivered in other material combinations which are agreed with the supplier.
R may be the following:
01 : With electromagnetic clutch.
02 : Monobloc, flange-mounted with electric motor.
03 : With hydraulic motor.
04 : V-belt pulley and disengaging clutch.
07 : On base plate with petrol or diesel engine, or with electric motor.
08 : Mounted on trolley with petrol or diesel engine or with electric motor.
09 : With bare shaft end.
10 : Special-tailored according to task.
Any use of the pump is to be evaluated on the basis of the materials used in the pump. In case of
doubt, contact the supplier.
Pumps in material combinations A and C are primarily used for fresh water.
Pumps in material combination D are primarily used for seawater.
2.3 TECHNICAL DESCRIPTION
The noise level of the pump depends on the motor type supplied, as the noise from the pump can
be calculated as the noise level of the motor + 2dB(A).
The capacity of the pump appears from the name plate on the pump. If the pump has been delivered
without motor, the pump capacity is to be indicated on the plate when mounting the motor.
