Tabla De Contenido; Applications; Type Designation; Pump Key - Grundfos SPK Serie Instrucciones De Instalación Y Funcionamiento

CONTENTS
1. Applications
2. Type designation
2.1 Pump key
3. Technical data
4. Installation
4.1 Pump location
4.2 Suction conditions
5. Electrical connection
6. Start-up
7. Operation and maintenance
7.1 Lubrication and maintenance
7.2 Filters
7.3 Periodic checks
8. Service
9. Sound pressure level
10. Fault finding chart
11. Disposal
Before beginning installation procedures,
these installation and operating instruc-
tions should be studied carefully. The in-
stallation and operation should also be in
accordance with local regulations and ac-
cepted codes of good practice.

1. Applications

The GRUNDFOS pumps, type SPK, are multistage
centrifugal pumps designed for pumping liquids for
machine tools, condensate transfer, liquid transfer in
industrial washing machines and similar applica-
tions.
The pump must not be used for the trans-
fer of inflammable liquids such as diesel
oil, petrol or similar liquids.
The pumps are designed for pumping liquids with a
density and viscosity corresponding to those of wa-
ter. The pumped liquid must not contain abrasive
particles or fibres.
When pumping liquids with a density or viscosity
higher than that of water, the motor size should be
taken into consideration.

2. Type designation

The standard range of pumps encompasses com-
plete impeller in chamber combinations. On request,
other lengths, against duty combinations, can be
supplied by fitting empty intermediate chambers in-
stead of standard chambers with impellers.
The pump key on the pump nameplate indicates the
number of chambers and impellers fitted to the
pump.
4

2.1 Pump key

4
Example SPK 4 - 16 / 2 -x -x -x -xxxx
4
4
Pump range
4
Nominal flow rate in m³/h
4
Number of stages
4
5
Number of impellers
5
Code for pump version
5
Code for pipework connection
6
6 Code for materials
6
Code for shaft seal and rubber pump parts
6
6

3. Technical data

6
7
Pump type
7
Minimum liquid temperature [°C]
Maximum liquid temperature [°C]
Maximum ambient temperature [°C]
Maximum operating pressure [bar]
Enclosure class

4. Installation

The pump must be installed so that per-
sons cannot accidentally come into con-
tact with the hot surface of the motor.

4.1 Pump location

The pump is designed for tank mounting in vertical
position. The pump is positioned in a hole cut into
the cover of the tank (upper side) and is secured to
the tank by four hexagon head screws through the
holes in the mounting flange. It is recommended to fit
a sealing gasket between the pump flange and tank.
If the pump is to be installed horizontally, the drain
hole of the motor stool must be fitted with a plug.
Fig. 1
c
SPK
-10
+90
+40
10
IP 54
4 x X
L
D1
D2
D3