Product description
Structure of the dosing pump
10
Stepper motor-driven diaphragm dosing pump NXP-M and NXP-P
Operating instructions
4 Product description
4.1 Properties
The NXP-M and NXP-P is a stepper motor-driven diaphragm dosing pump
that is used when precise dosing results are required.
They are characterized by the following properties:
n
Output range from 0.68 – 8.10 gph, up to 290 psig
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Power supply 110—240 V, 50/60 Hz, IP65, 25 W
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Microprocessor-controlled drive
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Integrated dosing head ventilation (only NXP-M/P 68 through 285 with
plastic dosing head)
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Suitable for wall and floor mounting
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Material finishes PVC, PP, PVDF and stainless steel
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Release input for external start/stop
Also with NXP-P:
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Pulse input (increase and reduction)
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Level input with early warning and main alarm
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Stroke frequency can be precisely adjusted via the keyboard
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Graphic display
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Calculation wizard for pulse operation available online
4.2 Scope of delivery
Please compare the delivery note with the scope of delivery. The
following items are part of the scope of delivery:
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Dosing pump NXP-M and NXP-P,
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One set each of hose clamping connections for the suction and
discharge sides for hoses with diameters of 4/6 mm, 1/4 x 3/8” (made
of PVC, PP and PVDF),
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Covering caps electrical connections:
1 for NXP-M
3 for NXP-P,
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Conductive rubber band for electrical contacts:
1 for NXP-M (in connection port 1)
2 for NXP-P (in connection ports 1 and 3),
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Mains cable,
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Operating instructions,
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Inspection report and test certificate (optional),
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Accessory kit (optional).
4.3 Structure of the dosing pump
4.3.1 General Overview
a
b
c
Fig. 1: General Overview
No.
Description
1
Dosing head
2
Drive unit
3
Control box
Table 6: General Overview
4.3.2 Dosing head
a
c
d
b
Fig. 2: Dosing head
No.
Description
1
Valve and connection on the discharge side
2
Integrated dosing head ventilation (only NXP-M/P 68 through 285
with plastic dosing head)
3
Arrow indicating the direction of throughflow of the dosing
medium (plastic version only)
4
Valve and connection on the suction side
Table 7: Dosing head