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Electronic turbine flow sensor-SN51B


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Product introduction

SN51B series electronic turbine flow sensor is another intelligent flow It is a sophisticated flow sensor with small size and easy setting. Built-in intelligent circuit, can set the upper and lower limit alarm values ​​of traffic at will, and can be monitored remotely The flow condition is set at any time, and the turbine measurement medium passes through the flow After processing through sensor intelligent circuit, arbitrarily program.

Protection level: 1P65

- Suitable for measuring low viscosity media such as water, diesel, gasoline.

- Add the upper and lower limit alarm function on the basis of traditional turbine flowmeters.

Wiring Diagram Dimension Drawing Panel Diagram Size Table Flow Range Curve graph Selection table

Needle Cable Signal
1 Brown Power supply
2 White Switch 2
3 Blue GND
4 Black Switch 1
5 Grey MA/pulse P

Threaded connection type

Instrument diameter
DN（mm）		 External thread
L
（mm）		 Internal thread
L
（ mm）		 H（ mm） G
（External thread）		 G
（Internal thread）
Pulse type Explosion-proof pulse type 4-20mA  Output type Smart display
4  225  80  106  118  106  210  G1/2 G1/4
6  225  80  107  119  107  210  G1/2 G1/4
10  345  80  109  121  109  210  G1/2 G3/8
12  65  80  110  122  110  212  G3/4 G1/2
15  75  110  112  124  112  215  G1 G1/2
20  85  115  115  127  115  220  G1 G3/4
25  100  140  117  129  117  225  G1-1/4 G1
32  120  168  120  132  120  245  G1-1/ 2 G1-1/4
40  140  180  124  136  124  250  G2 G1-1/2
50  150  200  129  141  129  255  G2-1/2 G2
Note: The above DN4-DN10 flow sensor includes the factory-standard straight pipe section size, and the DN15-DN50 diameter flow sensor does not include the straight pipe section size

Flange connection type

Instrument calibre（mm） L（mm） D（mm） K（mm） H（mm）

d
（mm）

 n
（Number of holes）		 Standard
Pressure resistance
Pulse type Explosion-proof pulse type 4-20mA
Output type		       Smart display
15  75  95  65  175  180  180  245  14  4   
20  85  105  75  185  190  190  255  14  4   
25  100  115  85  200  195  195  260  14  4   
32  120  140  100  210  215  215  275  18  4   
40  140  150  110  195  220  220  285  18  4   
50  150  165  125  230  235  235  295  18  4  1.6 
65  175  185  145  255  260  260  325  18  8  MPa
80  200  200  160  260  265  265  330  18  8   
100  220  220  180  285  285  285  350  18  8   
125  250  250  210  310  315  315  380  18  8   
150  300  285  240  345  345  345  410  22  8   
200  360  340  295  395  400  400  465  22  12   

Clutch connection type

Instrument calibre
（ mm）		 L（ mm） D1（ mm） A（ mm） B（ mm）
4  50  50.5  46  40.5 
6  50  50.5  46  40.5 
8  50  50.5  46  40.5 
10  50  50.5  46  40.5 
12  50  50.5  46  40.5 
15  75  50.5  46  40.5 
20  85  50.5  46  40.5 
25  100  50.5  46  40.5 
32  120  50.5  46  40.5 
40  140  64  59  53.5 
50  150  78  73.5  68 
65  175  91  86  80.5 
80  200  106  110.5  94 
100  220  119  113  106 
Nominal diameter
DN（ mm）		 Flow range（ m³/H）    Nominal pressure
PN（MPa）		  Maximum pressure loss
（MPa）
Lower limit Upper limit Lower limit Upper limit Lower limit Upper limit
2          0.03  0.16    0.15 
4          0.04  0.25    0.12 
6          0.1  0.6    0.08 
10          0.2  1.2    0.05 
12          0.12  2.4    0.05 
15      0.6  4  0.6  6     
20          0.8  8    0.035 
25      1.6  10  1  10     
32          1.5  15  Thread pressure resistance：  6.3  
40  3  20  3  20  2  20  Flange pressure resistant：  1.6  
50  6  40  6  40  4  40  Please indicate the special pressure resistance  
65          8  80     
80  16  100  16  100  10  100     
100  25  160  25  160  20  222    0.025 
125          25  250     
150  60  400  50  300  40  400     
200      100  600  80  800     
250      160  1000  120  1200     
300      260  1600  180  1800     

SN51B- 025  D P 2  K 1  Q Detailed description
SN51B-               SN51B series electronic turbine flow sensor
  025              Diameter option, 025 represents DN25 pipeline (pipes can be selected according to the dimension drawing. Please consult a sales engineer for special pipe diameter)
    D           Power supply method: 24V
      P         PNP output
      N         NPN output
        1        Two-way switch quantity
        2        Two-channel switch quantity + analog quantity 4-20mA output
        3        Two-way switch quantity + pulse output
          K     Internal thread installation
          H     External thread installation
          D     Flange connection
          G     Sanitary grade clamp connection
            1    Pressure withstand: 16bar
            2    Pressure withstand: 25bar
            3    Pressure withstand: 63bar
            P   Customized pressure resistance, such as 400bar:P400
              Q M12*1 connector
 * Factory standard electrical accessories M12 connector type ZL05-PU02FG
 * Please indicate the media flow direction, media type, pipe diameter and desired measurement interval value when ordering.  We can help you with precise tests when leaving the factory.
 * If it is a viscous medium, please indicate the viscosity, temperature, medium type, and flow range.
 * The selection table is for parameter selection only and is factory-coded according to the corresponding parameters. 
Shanghai Kayuan Electronic
Technology Co., Ltd.

Shanghai Kayuan Electronic Technology Co.,Ltd is an enterprise specializing in the production and R & D of industrial sensors and controllers. Its main products include switches and sensors for flow, pressure, temperature, and liquid level. Electronic turbine flow sensor-SN51B Suppliers in China.

In 2008, our assembly plant was established in Shanghai China,PAKU INTELLIGENT EQUIPMENT(SHANGHAI)CO.,LTD a subsidiary of Kayuan to produce the PAKU series of products. As Electronic turbine flow sensor-SN51B Factory, PAKU products are now widely used in different industries, including automation complete sets of equipment, petroleum equipment, chemical equipment, power equipment, welding equipment, steel equipment, metallurgical equipment, automobiles, and water treatment. We adopt advanced technology and manufacturing processes across the board. With our professional design and production technology, comprehensive product lines, excellent quality, and sales network services, we can not only provide users with timely and professional technical support but also offer high - quality one - stop services.

We have served many customers at home and abroad, and offer Electronic turbine flow sensor-SN51B Wholesale, our products are sold to countries such as Canada, the United States, Brazil, Indonesia, Vietnam, Thailand, and Russia. We welcome extensive cooperation with OEM and ODM customers.

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