ESP

ECCENTRIC SCREW PUMPS

Pumps of type family ESP are positive-displacement (eccentric screw) pumps designed for various mediums with increased viscosity normally used for delivery of sewage, sludge or various mediums in process and food industries.
Capacity of ESP pumps ranges from 1,1 to 13,2 m3/h and delivery heights up to 60 m.
These pumps can be implemented for either horizontal or vertical installation, however this must be known at time of order. Also depending on motor rotation direction, pump inlet and outlet can be reversed depending on site conditions.
Due to its monoblock construction, these pumps are simple to install and maintain. Shaft sealing is done by standard type of mechanical seals.
Material of casing depends on delivered medium (eg. perbunan, neopren, viton, teflon etc.)

IMPORTANT!

ESP pumps must be installed together with overpresurre and dryrunning protection. We can offer several types of protection systems depending on your requirements so contact us.

DIMENSIONAL DRAWING

Pump Type ESP2-1
Dimensions
Flange
A
AB
B
BB
C
D
E
F
G
H
HA
HD
L
L1
L2
P
R
J
d
k
Df
n
s
ESP2-1/C112/80A-2
76
100
406
436
15
12
40
90
43
90
12
216
919
465
325
224
454
230
50
125
165
4
18
ESP2-1/C112/80B-2
ESP2-1/C112/80A-4
ESP2-1/C112/80B-4
ESP3-1
ESP3-1/C112/80B-2
76
100
436
466
15
12
40
90
43
90
12
216
949
495
355
224
454
230
50
125
165
4
18
ESP3-1/C112/80B-4
ESP3-1/C112/90S-2
217
966
471
247
ESP3-1/C112/90S-4
ESP4-1
ESP4-1/C112/100L-6
130
160
543
573
15
14
45
130
57
130
15
260
1151
612
458
234
539
305
65
145
185
4
18
ESP4-1/C112/90S-4
1083
224
471
247
ESP4-1/C112/90L-4
1108
224
496
272
ESP4-1/C212/90L-2
1126
242
514
272
ESP4-1/C212/(H)100L-2
1169
252
557
305
ESP4-1/C212/(H)90L-4
1126
242
514
272
ESP4-1/C212/100LA-4
1169
252
557
305
ESP5-1
ESP5-1/C212/100LA-4
130
160
588
618
15
14
45
110
57
130
15
290
1214
657
503
252
557
305
65
145
185
4
18
ESP5-1/C212/(H)100L-2
ESP5-1/C312/100LA-4
1256
674
277
582
ESP5-1/C312/(H)100LB-4
ESP5-1/C312/(H)112M-4
302
1274
600
323

NotePrefix H indicates motor with increased power, as indicated in brackets!

ESP – CROSSECTION


For information only!

ITEM
DESCRIPTION
1
Stator
2
Helical rotor (eccentric screw)
3
Shaft
4
Pump casing
5
Connection casing
6
Mechanical seal
7
Extension piece
8
Carrier
9
Protection cap
10
Gear box
11
El.motor