Accuracy; Reproducibility; Metering Precision - ProMinent TZ Operating Instructions Manual

Main pumps with motor 1800 rpm under
60 Hz operation
Type Minimum pump capacity at maximum
back pressure
psi
120260 174
120340 174
120430 174
120510 174
120650 174
70430 100
70570 100
70720 100
70860 100
71070 100
40840 58
41100 58
41400 58
41670 58
42100 58
15.2

Accuracy

15.2.1

Reproducibility

15.2.2

Metering precision

Maximum
stroke rate
l/h gph Strokes/min
309 81.8
414 109.5
518 137
622 164.5
– –
511 135
683 180
855 226
1028 272
– –
1001 264
1339 354
1676 443
2014 532
– –
* Material versions PPT, PCT, TTT / SST
The permissible priming pressure at the suction side is approximately 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 for clean and moistened valves and a clear
outlet
Data
Reproducibility
* for measurements taken under constant conditions, minimum 30 %
stroke rate and water at 20 °C - when installed correctly, p< 1 bar
Data
Metering precision
Suction Connector size
lift
m WS
86 4
115 4
144 4
173 4
– 4
86 3.5
115 3.5
144 3.5
173 3.5
– 3.5
86 3
115 3
144 3
173 3
– 3
Technical data
Shipping
weight*
G-DN kg
1 1/2 - 25 46/54
1 1/2 - 25 46/54
1 1/2 - 25 46/54
1 1/2 - 25 46/54
1 1/2 - 25 46/54
2 - 32 50/64
2 - 32 50/64
2 - 32 50/64
2 - 32 50/64
2 - 32 50/64
2 1/4 - 40 56/80
2 1/4 - 40 56/80
2 1/4 - 40 56/80
2 1/4 - 40 56/80
2 1/4 - 40 56/80
Value Unit
±2 % *
Value Unit
±1 % *
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