• KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch

KEYILE科译勒 K-PF10 Target flow switch

No.K-PF10
The water flow switch has SPDT output, excellent performance, high precision and reliability. Can be installed in water pipes or liquid pipelines that have no corrosive effect on copper. When the liquid flow rate reaches a certain rate, one circuit may close and the other circuit may open without reaching the rated point. The water flow switch is only used for liquid media above 0 ℃, and can also be used for high salt liquids, but not classified as hazardous liquids. The water flow switch can be installed outdoors and can be installed horizontally or vertically in pipelines. The water flow switch is only used for operational control. It is necessary to strengthen the sense of responsibility and limit control of installation personnel, as well as the alarm monitoring system, to prevent the occurrence of control failures. Note: The water flow switch cannot be hit by water. If a quick closing valve is installed downstream of the water flow switch, a throttle must be used.
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • KEYILE科译勒 K-PF10 Target flow switch
  • Description

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Instrument Feature

                                                                                                                                                                                                                                  
  1. Instant response: The target flow switch can respond to changes in fluid flow in real time, quickly opening or closing to ensure the system's rapid response;
  2. Low pressure drop: This switch generates a low pressure drop during the measurement process, which has a minimal impact on the pressure of the fluid system and is suitable for situations where stable flow needs to be maintained;
  3. High pressure resistance: The target flow switch can withstand high pressure and is suitable for various working pressure environments, including high-pressure environments;
  4. High precision measurement: The measurement accuracy of the target flow switch is relatively high, usually reaching an accuracy of 0.2%, and it has integrated temperature and pressure compensation functions, which can directly output quality or standard square;
  5.  Strong stability: Due to the use of special target plates and throat structures, the target flow switch can control the distribution of flow, ensuring measurement stability and accuracy, and is not affected by external environments;
  6. Easy to maintain: Its structure is simple, with fewer parts, long service life, convenient maintenance and repair, and high reliability;
  7. Strong anti-interference and impurity resistance: During the measurement process, the target flow switch can automatically compensate for temperature and pressure, making it suitable for measuring complex fluids such as slurries containing solid particles;
  8. Wide applicability: Target flow switches are suitable for fluid media in various industrial processes, including liquids, gases, and vapors. They have a wide range of diameters (DN15 or above) and are suitable for high and low temperatures, as well as atmospheric and high-pressure working conditions.

Working Principle

                                                                                                                                                                                                                                  

When the flow rate exceeds the set value, the fluid pushes the blade and drives the micro switch at the top through the mechanical device inside the water flow switch. Its single pole double throw switch contact (SPDT) can make one circuit conductive while cutting off the other circuit This water flow switch is usually used in places that require interlocking or "cut-off" protection. The number of blades can be adjusted and the length of the blades can be adjusted to meet the needs of different pipe diameters and flow rates.

Application Field

                                                                                                                                                                                                                                 

Water flow switches are mainly used in water treatment systems, central air conditioning, water-cooled units and other fields. They are suitable for water, ethylene glycol and any other liquid that has no corrosive effect on brass, phosphor copper and has no impact on sealing performance. Mainly used for monitoring, alarming, interlocking protection, etc. of circulating cooling, lubrication filtration, or other fluid circuits, to achieve automatic flow control.



Technical Specifications

                                                                                                                                                                                                                                 
Shell protection level IP54 or IP67
Output format Micro switch SPDT output
Wiring method Terminal wiring
Contact life 100,000 times
Ambient temperature -25~80℃ 
Temperature range of the medium used -10~90℃(-30~350℃)
Working medium Air, water, and oil
Repetitiveness ± 2.5% total range
Maximum pressure 16 kilograms or 40 kilograms
Output Mechanical switch normally open or normally closed
Micro switch parameters 24VDC,15A 250VAC,15A 380VAC,5A 
Material
Main body: 304 stainless steel
Process Connection: Brass&304 Stainless Steel
Connecting rod: brass&304 stainless steel
Target: 316L stainless steel
Protective shell: plastic polymer&304 stainless steel

Outline dimension diagram (reference)
                                                                                                                                                                                                                                  

4-point iron base
size Number of target films
4 points 3 target films
6 points 3 target films
1 inch 5 target films
Note: Brass thread on iron base
304 stainless steel target plate
Note: The dimensions are manually measured for reference only. Please refer to the actual product for accuracy
6-point stainless steel base
size Number of target films
4 points 3 target films
6 points 3 target films
1 inch 5 target films
Note: All are stainless steel base threads
304 stainless steel target plate
Note: The dimensions are manually measured for reference only. Please refer to the actual product for accuracy
4-point stainless steel base
size Number of target films
4 points 3 target films
6 points 3 target films
1 inch 5 target films
Note: All are stainless steel base threads
304 stainless steel target plate
Note: The dimensions are manually measured for reference only. Please refer to the actual product for accuracy

Installation Pipe Diameter Parameter Table (Reference)
                                                                                                                                                                                                                                  

Parameter Table 1 is applicable for pipes with a diameter ≤ DN150 6 "
Installation diameter DN Applicable target film number Pressure kilogram Adjustable range L/min (water air) Delay L/min (water air) Weight (kg)
DN25 「1」 1 16 40 20...48 8

0.55

DN32 「11/4"」 1 16 40 34...100 10
DN40 「11/2"」 1 16 40 65...160 14
DN50 「2"」 1 16 40 120...280 26
DN65 「21/2"」 1 16 40 210...550 18
DN80 「3"」 1 16 40 380...750 20
DN50 「2"」 2 16 40 40...140 18
DN65 「21/2"」 2 16 40 110...340 15
DN80 「3"」 2 16 40 180...470 18
DN100 「4"」 2 16 40 350...920 20
DN80 「3"」 3 16 40 115...220 20
DN100 「4"」 3 16 40 210...590 20
DN125 「5"」 3 16 40 380...1200 40
DN150 「6"」 3 16 40 550...1800 80
Parameter Table 2 is applicable for pipe diameters ≥ 25mm
Interface height (mm) Applicable target film number Pressure kilogram
Adjustable range L/min (water air) Delay L/min (water air) Weight (kg)
25 4 16 40 0.37...1.22 0.05 0.55
25 5 16 40 0.26...0.86 0.04
50 4 16 40 0.57...1.68 0.08
50 5 16 40 0.33...1.08 0.05

Installation Diagram
                                                                                                                                                                                                                                  

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