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Metering pumps

Diaphragm metering pumps NDM

 

NDM – 4th-generation membrane dosing units are designed for volumetric dosing of methanol, corrosive liquids, suspensions and emulsions.

Metering pumps NDM are made according to Technical specifications 3632-003-46919837-2007

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Benefits:

  • Tightness, reliability;
  • Availability of a safety device for protection of the membrane from high pressure;
  • Possibility of remote control of the membrane rupture;
  • Capacity – up to 15,000 l/per hour;
  • Pressure – up to 32 MPa.

 


  

Diaphragm metering pumps NDM variants.

 

The main parametric range of diaphragm pumps with drive power up to 4 kW

 

Drive power of the unit, kW
  0,25 0,37  0,55 1,1  0,55  1,1  1,5  2,2  3,0  4,0
Nominal feed, l / h Maximum stroke length of the plunger, mm
  16 32 60
2,5* 100 160                
5** 100

160                
10

100 160                
16

63 100 250              
25
30
40 63 160 250 160
160
250
250
       
40
50
25 40 100 160 100
100
160
160
250
250
     
63
75
16 25 63 100 63
63
100
100
160
160
250
250
   
100
120
10 16 40 63 40
40
63
63
100
100
160
160
250
250
 
160
200
6 10 25 40 25
25
40
40
63
63
100
100
160
160
250
250
250
320
    16 25 16
16
25
25
40
40
63
63
100
100
160
160
400
500
        10
10
16
16
25
25
40
40
63
63
100
100
630
800
        6
6
10
10
16
16
25
25
40
40
63
63
1000
1250
        4
4
6
6
10
10
16
16
25
25
40
40
1600
2000
        2,5
2
4
4
6
6
10
10
16
16
25
25
2500
3200
        1,6
1
2,5
2
4
4
6
4
10
6
16
16

 

In the numerator, the fractions-parameters at 100 strokes of the plunger per minute, in the denominator - at 120
* 30 strokes of the plunger per minute
** 50 plunger strokes per minute

 


 

 

The main parametric range of diaphragm pumps with drive power up to 5,5 и 7,5 kW

 

 

Unit with 1 dosing head Unit with 2 dosing head
Nominal feed, l / h

Limiting pressure,    kgf / cm2

Nominal feed, l / h Limiting pressure,       kgf / cm2 Limiting pressure,        kgf / cm2
400
500
250
200
2х250
2х320
200
160
250
200
630
800
160
125
2х400
2х500
125
100
150
125
1000
1250
100
80
2х630
2х800
80
63
100
80
1600
2000
63
50
2х1000
2х1250
50
40
63
50
2500
3200
40
32
2х1600
2х2000
32
25
40
32
    2х2500
2х3200
 20
 16
25
20

 

In the numerator, the fractions-parameters at 100 strokes of the plunger per minute, in the denominator - at 120