Technical data
Operating conditions and limits
13
Subject to technical changes.
Stepper motor-driven diaphragm dosing pump NXP-M and NXP-P
Operating instructions
5 Technical data
5.1 Delivery capacity data
Please note that some of this data only represents guide values. The actual capacity of a dosing pump depends on various factors. For approximate
values of the delivery capacity at different pressures, refer to chapter 15 “Delivery characteristic curves“ on page 40.
Information
Value
NXP-M and NXP-P Size
M68/P68 M140/P140 M285/P285 M375/P375 M540/P540 M810/P810
Delivery capacity at max. backpressure
gph
0.68
1.4
2.85
3.75
5.4
8.10
ml/stroke
0.22
0.57
1.19
1.52
2.27
3.41
Max. delivery pressure
psig
290 (232*)
232
145
88
74
44
Delivery capacity at average backpressure
gph
0.7
1.59
2.98
3.88
5.6
8.2
ml/stroke
0.28
0.63
1.26
1.60
2.36
3.44
Average delivery pressure
psig
145
116
72
44
36
22
Max. stroke frequency
min-1
150
Table 11: Output data
* with a PVC design.
5.2 Operating conditions and limits
Information
Value
NXP-M and NXP-P Size
Approved ambient temperature
°F
41 – 113 (with PVC components 41 – 104)*
Relative humidity
%
max. 90
Max. sound pressure level
dB(A)
51 – 56
Max. supply pressure
mbar
800
Viscosity limits
mPa∙s
300** / 1000***
Adjustable dosing range
%
0 – 100
Table 12: Operating conditions and limits
* Use of the dosing pump at ambient temperatures below 41 °F must be checked individually. In such cases, please contact the manufacturer.
** With a viscosity of ~300 mPa∙s and above, you must use spring-loaded valves.
*** If the viscosity of the medium is larger than 1000 mPa·s, the use of the dosing pump must be checked individually. In such cases, please contact the
manufacturer.
5.2.1 Approved media temperature
Information
Value
NXP-M and NXP-P (all sizes)
Dosing head made of PVC
°F
32 – 95
Dosing head made of PP
°F
32 – 140
Table 13: Approved media temperature