Process Pump of Plastic Material Type Series SP

Process Pump of Plastic Material
Type Series SP

Process Pump of Plastic Material
Type Series SP
Large Flowrates
When the maximum flow capability
of standard chemical pumps has
been reached, the SP heavy – duty
Robust:
The spheroidal cast
iron casing
Replaceable:
The plastic housing
Optional:
The drainage
process pump takes over. The SP is
proven in handling aggressive and
corrosive fluids at flowrates between
500 & 3000 m 3 /hr. The pump is
pressure rated to PN10 (10 bar).
Throughout the world SP pumps
operate at the heart of large process
plants, e.g. in chlorine electrolysis
transfer and flue gas cleaning.
Easy to replace:
The back pull-out unit
Unique:
The axial face seal
Strong:
The pulling bolts
Brilliantly: The type series SP

Design
The casing of the SP is cast iron and
the internals are solid UHMW-PE,
which is suitable for fluid temperatures
up to 90 °C. The pump casing
absorbs the internal and external
forces.
The pumps back pull-out unit can be
removed for maintenance or repair
without affecting the pipework or
motor. The thick walled plastic
internals can easily be replaced.
Performance
Very high flowrates and the optimum
efficiencies are achieved by using
closed metal impellers with front
vanes and back vanes (Type E).
WERNERT recommend 1.4464
material when pumping slurrys and
1.4517 material when handling liquids
with a high chlorine content.
For fluids with pH values less than
4 we recommend closed plastic
impellers manufactured for
UHMW-PE with front vanes and
back vanes (Type K).
Shaft Sealing
The WERNERT bellows type axial
face seal is a unique simple design
that has proved to be extremely
reliable. It can be equipped with
a quench and/or continuous flushing
if required.
Various single and double mechanical
seals, produced by leading
manufacturers, are available for
special applications.

Special applications on
request.
We reserve the right to
make technical modifications.
Head m
Head m
35
30
25
20
15
10
5
0
100 200 400 600 800 1000 2000 3000 4000
50
40
30
20
10
Flow m 3 /h
0
100 200 400 600 800 1000 2000 3000 4000
Flow m 3 /h
250/300 K
250/300 K
Characteristic curves SP
300/350 K
300/350 E
300/350 K
n = 740 min -1
350/400 E
n = 985 min -1
300/350 E
350/400 E

722 + 149
153
232
260
443
105.1
892
DN E
141
The type illustrated is a SP 300/350 K with closed plastic impeller.
Only order spares according to the relevant parts list!
a f
x k
DN A
471
552
475 481 482 507
525 472 524 421
360
154
145
322
505
105.2
depending on
motor manufacturer
h 2
h 1
350
e
210
361
183
321
421
250/300 K
300/350 K
300/350 E
350/400 E
300
350
350
400*
250
300
300
350*
Cross section
Part-No. Designation
105.1 Casing half
105.2 Casing half
141 Outer pump mantle
145 Adaptor
149 Diffuser
153 Suction nozzle
154 Intermediate plate
183 Support foot
324
345
345
345
210 Shaft
232 Clockwise impeller
260 Impeller hub cap
321 Radial ball bearing
322 Radial rollerbearing
350 Bearing housing
360 Bearing cover
361 Bearing end cover
421 Radial shaft seal ring
443 Seal insert
471 Seal cover
472 Stationary seal ring
475 Rotating seal ring
481 Bellows
482 Bellows seat
505 Loose collar
507 Thrower
524 Shaft wearing sleeve
525 Spacer sleeve
552 Spanner
722 Taper piece, flanged
892 Pump foot plate
Dimensions table
Flanges
PN 16**
Typ SP DNE DNA a e f h1 h2 x
350
430
430
430
1007
1057
1057
1057
530
650
650
650
509
509
509
509
250
300
300
300
* Flanges PN 10 ** alternatively PN 10

WERNERT-PUMPEN GMBH · P.O.Box 10 21 53 · D-45421 Mülheim an der Ruhr · Germany
Phone: +49 (0) 208 / 37 58 - 0 · Fax: +49 (0) 208 / 40 74 72 · e-mail: info@wernert.de · http://www.wernert.de