2. Structure of presentationStructure of presentation
Overview
Available sizes
References
Design
Main materials
Mechanical seals
NE - aggregates
3. OverviewOverview
Horizontal single stage chemical
standard pump to DIN EN ISO 2858
out of UHMW-PE, PVDF or PTFE
Complete spheroid cast iron clad
Single acting WERNERT-bellows-
type mechanical seal - other single
or double acting MS available
Flow rates 0,5 - 1000 m³/h
Delivery head up to 110 m
To convey aggressiv, solid laden
and/ or toxic fluids
As type FK/ FE also available in
closed coupled design
4. Available SizesAvailable Sizes
Bearing housingBearing housing
No. 0No. 0 No. 1No. 1 No. 2No. 2
40-25-16040-25-160
No. 3No. 3 No. 4No. 4
50-32-25050-32-250
65-40-25065-40-250
80-50-25080-50-250
80-50-31580-50-315
100-65-250100-65-250
125-80-200125-80-200
125-80-250125-80-250
125-100-200125-100-200
50-32-16050-32-160
50-32-20050-32-200
65-40-20065-40-200
80-50-20080-50-200
125-80-315125-80-315
125-100-250125-100-250
125-100-315125-100-315
150-125-315150-125-315
200-150-250200-150-250
200-150-400200-150-400
250-200-400250-200-400
Within same bearing housing no.
identical parts:
-Shaft seal incl. stat./ rot. seal ring
-Shaft and shaft sleeve system
-Bearing housing/ bearing system
Nominal impeller Ø
Discharge Ø in mm
Inlet Ø in mm
5. Worldwide references -Worldwide references -
transporting slurriestransporting slurries
X Pump type Pumped liquid kg/l °C m³/h m
1 NKP 50-315/o 54 % P2O5-acid with gypsum and fluorosilicate 1,7 80 32 36
2 NEPO 200-150-250 weak H2SO4 (9 - 30 weight-%) with 4,4 - 15 g/l solids (with F, Cl) 1,18 80 410 32
2 NEPO 80-50-200 30 % HCl, 30 % Ammoniachloride with 10 % Titaniumdioxide 1,15 70 50 20
3 NEPO 80-50-200 H2SO4-waste water with copper solution, solids max. 15%, 100 µm 1,14 60 50 39
4 NKP 150-400 3 - 6 Gew-% H2SO4 + calcined ore 1,11 70 270 37
5 VKP 50-315 Slurry with max. 200 g/l solids, pH = 2-10, 4 - 44 kg/m³ Cl- 1,2 60 45 35
5 NKP 100-200/o Slurry with max. 300 g/l solids 1,2 60 100 25
6 NEPO 50-32-200 Silicate-slurry with up to 20 % solids 1,1 40 12 24
7 NKP 50-200/o Zirconium-smelter-Slurry, pH = 14, with 30 % solids 1,2 30 20 15
7 NKK 80-315/o Titaniumsulfate with 270 g/l TiO2, H2SO4 550 g/l, H2SO4 180 g/l (free) 1,68 80 120 31
8 NEWO 80-50-250D HCl-slurry and Slurry-waste charge with max. 500 g/l solids 1,4 120 50 16
9 NETO 65-40-250 Pigments slurry, 75 mPas, for filter feeding 1,5 120 15 82
10 NEPO 80-50-315 Gyspum slurry with 40 % solids 1,3 50 40 70
1 JORDAN PHOSPHATE MINES CORPORATION - AMMAN, JORDANIA
2 LIDCOMBE - SYDNEY and BENTLEY, AUSTRALIA
3 PHILIPPINE PHOSPHATE FERTILIZER CORP. - MAKATI, PHILIPPINES
4 PIANIMPIANTI SPA - MILANO, ITALIA
5 STERLITE INDUSTRIES (I) LTD. - MUMBAY, INDIA
6 TIOXIDE EUROPE SRL. - MILANO, ITALIA
7 SACHTLEBEN CHEMIE - DUISBURG, GER.
8 BAYER AG – LEVERKUSEN, GERMANY
10 GMVA NIEDERRHEIN - OBERHAUSEN, G.
7. Design features – pump casingDesign features – pump casing
Process design
Completely enclosing
annular casing of
GGG 40.3
Thick-walled,
interchangeable plastic
parts, pump casing with
integrated suction and
discharge flange
Multi-functional retaining
ring (split )
Metallic reinforcement of
plastic parts and seals
Optional: casing drain
8. Design features – impeller andDesign features – impeller and
shaft sealshaft seal
Increased chlorine
resistant impeller
(UHMW-PE), screwed
to the shaft, semi-open
Unique WERNERT
bellows-type axial face
seal, different designs
available
Bellows holder (tighten
before start-up!)
Stationary seal ring
Rotating seal ring
9. Design features – bearing systemDesign features – bearing system
Fixed/ movable bearing
arrangement
Universal shaft of
material 42CrMo4, to be
used with different kind
of mechanical seals
Sealed for life bearings,
oil or grease lubrication
available
Support foot mounted to
the bearing house
Low friction V-rings
protect bearings from
dirt and dust
10. UHMW-PE - also available as conductive material
– up to 90 °C liquid temperature
– excellent abrasion resistance
PVDF
– up to 115 °C liquid temperature
Wernit®
- armoured mineral cast
– up to 125 °C liquid temperature
– Epoxy resin with silicon carbide
– best abrasion resistance
PTFE/ PFA - also available as conductive material
– up to 165 °C liquid temperature
– generally resistant against chemicals, bad abrasion resistance
Main materialsMain materials
For more information
please refer to our
List of chemical resistance
11. Mechanical sealsMechanical seals
Single acting mechanical seals
– WERNERT elastomer bellows-type
– WERNERT PTFE bellows-type
– available configurations:
• Internal rinsing
• Quench
• Continuous rinsing
• Rinsing after use
Double acting mechanical seals
– Double acting MS to DIN 24960 (back-to-back)
– Stationary, double acting MS BURGMANN HRZ13
12. WERNERT elastomer bellows-typeWERNERT elastomer bellows-type
mechanical sealmechanical seal
Well proven for decades, also
with solid laden liquids
Bellows acts as spring and
auxiliary seal
Bellows materials:
– CSM up to 80°C
– FPM up to 100°C
Seal rings of Carbon, SSiC or
Al2O3
Up to 3 bar(g) inlet pressure
Shown is internal rinsing -
Quench, continuous rinsing or
rinsing after use as an option
Rotating seal ring Stationary seal ring bellows
13. WERNERT PTFE bellows-typeWERNERT PTFE bellows-type
mechanical sealmechanical seal
Generally resistant against
chemicals
PTFE- bellows with spring
Up to 115 °C and up to
3 bar(g) inlet pressure
Seal rings of Carbon, SSiC,
Al2O3 or PTFE/glass
Shown is internal rinsing -
Quench, continuous rinsing or
rinsing after use as an option
14. QuenchQuench
Pressureless liquid rinsing on
atmospheric side
Usually: clean water or
demineralised water
Flushing rate 30 l/h,
quenching liquid does not
contaminate the product
Open or closed circuit
Used for
– crystallizing media
– conglutinating media
– protection against certain
types of dry running
caused by blocked
suction pipe work
15. Continuous rinsingContinuous rinsing
Pressurized rinsing of the
mechanical seal
Usually: clean water
Flushing rate 40 - 250 l/h,
verges into the product
Used for
– heavy solid laden liquids
– liquids closed to the
boiling point
– undissolved gases in the
liquid
– certain types of dry
running caused by air in
the pump
16. Rinsing after useRinsing after use
Pressure less rinsing of the
sealing chamber during and
after shut-down
Usually: clean water
Flushing rate 40 l during 5
minutes
Used to prevent
– sedimentation
– crystallizing
– conglutinating
Is not replacing the flushing
of the whole pump, but
completing it.
17. Double acting mechanical seal toDouble acting mechanical seal to
DIN 24960 ( back-to-back)DIN 24960 ( back-to-back)
All common manufacturers
For the following media:
– harmfull
– water polluting
– harmfull to the
environment
– close to boiling point
– tending to crystallisation
Effective protection against
dry running
Protected against pressure
hammer
18. Stationary, double actingStationary, double acting
mechanical sealmechanical seal BURGMANN HRZ 13BURGMANN HRZ 13
Developed with BURGMANN
- exclusively manufactured
for WERNERT
Robust “FGD” - design
Cartridge on product side for
simple mounting
For medium up to high solid
containing liquids
The top-solution for critical
applications
19. NE - aggregatesNE - aggregates
One base plate for
three ways of fixing:
– Anchor bolts
– Chemical anchor
bolts
– Shock absorbers
Simplified alignment by
adjustable motor plate
Robust metallic
coupling guard (not
shown here)
Leakage launder
Top mounted terminal
box