TECRA SK

The innovative Tecra series electromagnetic metering pump with digital drive is a result of NW's 25 years or working closely with our world-wide customers. These multifunctional metering pumps maintain the high reliability that is synonymous with NW quality.
All Tecra series have IP 65 rated enclosure made of Polypropilene reinforced with glass fiber. This allow the pumps to be water and impact resistant and corrosion free.

 

THE FASTEST FOR A UNIFORM DOSING

The Tecra series working at unprecedented 400 strokes/minutes, allows a uniform dosing over a wide adjustement range. It covers a wide range of performances with only a few models, providing simplicity in after sales service and parts requirements.

in l/h:

l/h

400 p/min
200 p/min
100 p/min
50 p/min
25
12,5
6,25
3,13
11
5,5
2,75
1,37
5,3
2,65
1,32
0,67
2
1
0,5
0,25

 

VERSTILITY AND RUGGEDNESS

All Tecra seies have Ip 65 rated enclosure made of Polypropilene reinforced with glass fiber. This allows the pumps to be water and impact resistant and corrosion free.

Versatile installation as Tecra series pumps allow for 3 fixing possibilities;
• wall mounting with only one fixing point;
• wall mounting with 2 or 4 fixing points;
• base mounting (on tank or existing wall mounting bracket with optional bracket)

 

RELIABILITY

All NW pumps are tested using modern technologies; their reliability is assured through use of high quality materials, intensive laboratory tests and life stress tests. Every pumps, is operated 6 hours at maximun speed before the final test.

CONTINOUS OPERATION PUMPS

The SK require only the electrical power supply to work. Flow rate is adjustable:
• changing the number of strokes per minutes (F) fro 1 to 400 or
• changing the percentage of flow rate (P) from 0 to 100%

Adjustment is very easy as the pump will automatically adapt the parameters, i.e. setting flow rate (P) to 50% when visualising the number of strokes minute (F) the display show 200.


PROPORTIONAL PUMP

The Tecra SK series is the only proportional pump in the market that combines the constant function described above and all proportional functions into the same pump.

Pulse control

The pumps will accept dry contacts inputs and dose proportionally to the impulse pulse frequency. The pumps manage the input pulses in various ways:

1:n Pulse Step-up
It's a multiplying proportional mode. By entering a value, in the range 1 and 9999, for parameter n, the step-un ratio is set, i.e. step-up with:
n=100, 1 pulse = 100 pump strokes
n=250, 1 pulse = 250 pump strokes
External Pacing is obtained by setting n=1

n:1 Pulse Step-down
It's dividing proportional mode. By entering a value, in the range 1 and 9999, for parameter n, the step-down ratio es set, i.e. step-down with:
n=500, 500 pulses = 1 pump stroke
n=25, 25 pulses = 1 pump stroke
Ecternal Pacing is obtained by setting n=1

TECHNICAL DATA

LIQUID CONTACTED MATERIALS

Head type
Standard
SP
Pump Head
PP
Connectors
PP
Valve balls
Pyrex
Seals
FPM or EFDM
Diaphragm
PTFE
S


Model

Back Pressure

Flow rate

cc/stroke

Connections
(mm)

Stroke/min

Weight

Bar

L/h

In/Out

Kg

600
20
2
0,08
4/7
400
1,7
601
12
2,5
0,10
4/6
400
1,7
10
3
0,13
6
3,5
0,15
602
8
5
0,21
4/6
400
3,1
5
6
0,25
1
8
0,33
901
16
6
0,25
4/6
400
3,1
14
7
0,29
12
8
0,33
902
10
10
0,42
4/6
400
3,1
6
12
0,50
2
14
0,58
903
5
20
0,83
8/12
400
3,2
3
28
1,17
1
45
1,88
904
2
45
1,88
8/12
400
3,2
1
60
2,50
0
70
2,92

CHARACTERISTICS

Power supply: 230V 50-60Hz -10% + 15%
Isolation class: F
Protection degree: IP65
Working temperature: -10...40 ºC
Pump is supplied with 1,5 metre power supply cable and european plug.
a

CODE ORDERING SYSTEM

Pump Type

Function

Model

Power Supply

Head Type

NA XL 602 A SP
NA= Analogic
TECRA series
XL= continous with level control input See technical data table A= 230 Vac 50-60Hz
B= 24 Vac 50-60Hz
C= 115 Vac 50-60 Hz
See technical data table

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