Catalogue - Series SPL, 3,500 m³/h, 33 m, 110 °C0 pages

Mixed Flow, Volute Casing Pump
SPL 20024...40056

TECHNICAL DATA
Output:

up to 3500 m3/h

Delivery head:

up to 33 m

Speed:

up to 1800 rpm
depending of the pump size

Medium temperature:

max. 110 °C

Casing pressure:

max. 6 bar

Shaft sealing:

stuffing box or mechanical seal

Flange connections:

ISO DIN 2501, PN 10

Sense of rotation:

clockwise, when seen from the
drive on the pump

APPLICATION
Series SPL volute-casing pumps can be used where the
requirement is for pumping clean, turbid or slightly
contaminated liquids. Occasional solid contaminations can be
handled without affecting the pump due to the large internal
cross sections.
The SPL pumps are suitable for the following applications
pumping raw water in waterworks

for irrigation and drainage

Bearings:
Execution B:

Drive end--ball bearing to DIN 625 or two angular contact ball
bearings in an X arrangement to DIN 628.

as seawater pumps in desalination plants
as coolant pumps in power stations and steelworks
for pumping low-concentration cellulose suspensions
DESIGN
The SPL is a horizontal, single stage, end suction pump flanged
to a bearing pedestal. The volute casing has integral support
feet and is fitted with a replaceable wear ring. Wearing parts
can be removed from the drive end without disturbing the volute
casing and pipework. An open impeller (designation A-I) is fitted
as standard but a closed impeller (designation K-S) for pumping
liquids containing abrasive solids can be fitted if required.

Bearings are oil lubricated.
Shaft sealing:
A stuffing box or a mechanical seal, as required, can affect
the sealing of the shaft.
Variants with stuffing box:
Designation 041: Self-sealing, uncooled stuffing box
Temperature range: -10 ºC to 110ºC.
Designation 052: Uncooled stuffing box with external sealing
and flushing liquid
Temperature range: -10ºC to 110ºC.
Variants with mechanical seal:
The installation with mechanical seal to DIN 24960 is possible
in all versions described there, as a single mechanical seal.
Temperature range: -10 ºC to 110ºC

CONSTRUCTION
Casing pressure: between -10 ºC and +110 ºC

20024, 25024
25028,30028,
40040
20028,35040,
40050
40056
25032,30032,
30036
35036

Flanges:
Connection dimensions of flanges DIN 2532 PN 10.

Pump end--ball bearing to DIN 625 or cylindrical roller bearing
to DIN 5412.

as rainwater pumps in sewage works

Pump size, SPL•

Branch positions:
Suction branch axial, discharge branch tangentially upwards.

Maximum pump
pressure [bar]
(0B, 0C, 3B)
2,5
3,0

Maximum pump
pressure [bar]
(4B)
4,0
4,5

3,5

5,5

4,0

6,0

Designation AA1

Unbalanced single mechanical seal,
Materials: 1.4401-carbon-Viton
Designation BK3: Unbalanced single mechanical seal,
Materials: Carbon-SiC- EPDM
Designation BKS: Unbalanced mechanical seal
Materials: SiC-SiC-Viton
Designation AF3: Balanced single mechanical seal,
Materials: Carbon-SiC- EPDM
Designation AFS: Balanced single mechanical seal,
Materials: SiC-SiC-Viton
Double mechanical seals can be mounted on request

Note: Casing pressure = Inlet pressure + head at closed valve.

133.26201.53.03E

PUMPING TECHNOLOGY SPL
07/05