Plastic Vertical Chemical Pump Type VKPF

Plastic Vertical
Chemical Pump
Type VKPF

Plastic Vertical
Chemical Pump
Type VKPF
ATEX 100a
Protected:
The arrangement of bearings
Gastight:
The lip seal
Vibration- free:
The shaft
Unique:
The protection caps
Submersible pump
The type VKPF is a single - stage
submersible pump for open basins
and tanks. The thick - walled plastic
components and the high quality
coatings allow various applications
in pumping aggressive, corrosive and
solid - laden liquids at temperatures
up to 115° C. The support flange can
be designed either circular or
rectangular.
Plated:
The support flange
Completely coated steel:
The delivery suspension pipe
Solid:
The plastic casing

Dry bearing arrangement
The bearings of the shaft are located
only above the support flange. There
are no bearings in the submerged area.
Therefore even liquids that are highly
solid - laden can be pumped easily. It
is a reliable construction that can be
built up to an immersion depth of 1,5 m
(measure f1– see dimensional drawing).
For any longer immersion depths we
refer to our pump type VKP.
Tolerant towards dry
running
Hydrodynamic reduction of the
pressure on the rear of the impeller
means that a mechanical seal is not
required and the pump can run dry
for a short time (for example when
tanks are emptied). This type of pump
is therefore operator- friendly and
preferred by many users.
Operating method
On starting the pump, the
liquid level must be between
measures f2 (min. start level)
and f3 (max. start level). When
the pump is in operation the liquid
level can reduce and turn into suction
lift condition.
Suction pipes with variable lenghts
up to max. 3,5 m (measure x – see
dimensional drawing) are available.
Materials
The choice of plastics and coatings
depends on the chemical, thermal,
mechanical and abrasive loads. The
following plastics are used for
impeller and casing parts and are
indicated by the third letter of the
type reference:
VKPF – Ultra high molecular weight
low pressure polyethylene
(UHMW- PE)
VKKF – Polyvinylidenefluoride (PVDF)
The delivery suspension pipe is made
of steel with coating of ebonite or
E - CTFE (Halar).

Special applications
on request.
We reserve the right
to make technical
modifications
I
Pumps with same
bearing support size
Operation with
-1
2900 min only
with "short"
immersion depth
"see measure f1"
Pumps with same
bearing support size
Head m
Head m
70
60
50
40
30
20
10
130
120
110
100
0
1
90
80
70
60
50
40
30
20
10
2
3 Flow m /h
3
I
4
5 6 7 8910
150-400
125-315
100-315
50-315
50-250
32-250
32-200
20
50-250
32-250
32-200
50-200
Characteristic curves VKPF
30 40
65-250
80-250
60 80100
50-200
100-250
200
300
n = 1450 min-1
500 7001000
n = 2900 min-1
2000
0
1 2 3 4 5 6 7 8 910 20 30 40 60 80100 200 400 700 1000
3
Flow m /h
65-250
80-250

Discharge branch PN16
horizontal or vertical
a1
Type VKPF
32-200
50-200
32-250
50-250
50-315
65-250
80-250
100-250
100-315
125-315
150-400
f2
a2
f3
a
DNA
DNA
max. start level
min. start level
strainer
Dimensions table
DNA
32
50
32
50
50
65
80
100
100
125
150
DNE
50
80
50
80
80
100
125
125
125
150
200
a
130
160
-
160
160
160
160
-
-
-
-
a1
48
48
48
48
48
48
48
48
48
55
55
DNE
suction pipe /strainer (on request)
min. f4 x
f1
a2
65
65
65
65
65
65
65
75
75
85
95
c1
c LB
variable length suction pipe
b
391
461
557
557
570
567
586
658
825
865
1095
depends on
motor manufacturer
b1
329
361
441
441
471
441
441
461
525
575
700
c
720
720
776
776
776
776
776
776
1240
1240
1229
g
c1
33
33
33
33
33
33
33
33
28
28
34
g1
B
B1
D g g1 z x d A A1 B
k
565 11,25°
670
9°
780
9°
780
9°
780
9°
780
9°
780
9°
895
7,5°
1115
6,4°
1115
6,4°
1455
5,6°
515
620
725
725
725
725
725
840
1050
1050
1380
45°
36°
36°
36°
36°
36°
36°
30°
25,7°
25,7°
22,5°
Dimensional drawing
Support flange circular or rectangular
h1
h2
k
h1
h2
D
A1
A
h3
h3
z x d
b1
d
b1
Dimensions table Support flange circular or rectangular
f1
short
f2
short
f3
short
975 800 150
985 800 150
900 700 150
900 700 150
900 700 150
900 700 150
900 700 150
919 700 150
- - -
- - -
- - -
f1
long
1510
1520
1500
1500
1500
1500
1500
1519
1527
1527
1527
8x27
10x27
10x30
10x30
10x30
10x30
10x30
12x30
14x33
14x33
16x39
f2
long
1335
1335
1300
1300
1300
1300
1300
1300
1225
1225
1225
600
670
780
780
780
780
780
900
1115
1115
1455
f3
long
260
260
260
260
260
260
260
260
150
150
150
550
620
730
730
730
730
730
850
1050
1050
1380
f4
75
120
75
120
120
120
185
185
185
225
300
400
500
600
600
600
600
600
700
1115
1115
1455
h1
235
280
-
332
345
345
365
-
-
-
-
B1
350
450
500
500
500
500
500
600
1050
1050
1380
d
27
27
30
30
30
30
30
30
33
33
39
Dimensions in mm
h2
165
177,5
229
229
242
229
230
245
342
342
440
h3
45
65
70
70
70
70
80
115
145
145
200
Dimensions in mm

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