Type
Minimum pump capacity at max‐
imum back pressure
Maximum
stroke rate
Suction
lift
Connector
size
Shipping
weight**
psi
l/h
gph
Strokes/min
m WS
G-DN
kg
120260
174*
309
81.8
86
4
1 1/2 - 25
46/54
120340
174*
414
109.5
115
4
1 1/2 - 25
46/54
120430
174*
518
137
144
4
1 1/2 - 25
46/54
120510
174*
622
164.5
173
4
1 1/2 - 25
46/54
120650
174*
–
–
–
4
1 1/2 - 25
46/54
70430
100
511
135
86
3.5
2 - 32
50/64
70570
100
683
180
115
3.5
2 - 32
50/64
70720
100
855
226
144
3.5
2 - 32
50/64
70860
100
1028
272
173
3.5
2 - 32
50/64
71070
100
–
–
–
3.5
2 - 32
50/64
40840
58
1001
264
86
3
2 1/4 - 40
56/80
41100
58
1339
354
115
3
2 1/4 - 40
56/80
41400
58
1676
443
144
3
2 1/4 - 40
56/80
41670
58
2014
532
173
3
2 1/4 - 40
56/80
42100
58
–
–
–
3
2 1/4 - 40
56/80
* Material version PP, PC, TT max. 145 psi
** Material versions PPT, PCT, TTT / SST
The permissible priming pressure on the suction side is approxi‐
mately 50% of the max. permitted back pressure.
With double head pumps, the maximum permissible back pressure
reduces from 101.5 to 80 psi or from 58 to 43.5 psi.
All figures refer to water at 20 °C.
The suction lift applies to filled suction line and filled liquid end -
when installed correctly.
The priming lift of 2 m applies to clean and moistened valves and a
clear outlet.
13.2 Precision
13.2.1 Reproducibility
Data
Value Unit
Reproducibility
±2 % *
Main pumps with 1800 rpm motor at
60 Hz operation
Technical data
74