Brass Flow Sensor G1/2"DN15 Thread Hall Sensor YF-B1/B2/B3/B7 Switch Water Flow Sensor Flow Meter Hall Turbine Flow 1~25L/min
SPECIFICATIONS
Brand Name: Ziqqucu
Choice: yes
High-concerned chemical: none
Inner/Outer Diameter: 13.7/20.3mm
Input voltage: DC 5V
Insulation resistance: >100M Ω
Interface size: 4 points (G1/2)
Material: Metal,Copper
Model: YF-B1/YF-B2/YF-B3/YF-B7
Origin: Mainland China
Output: Switching Transducer
Output pulse duty cycle: 50% ± 10%
Output pulse high level: >DC 4.7V
Product: Flow Sensor
Screw thread size: long tooth 16mm, short tooth 10.5mm
Theory: Resistance Sensor
Type: Water Flow Sensor
Use: Pressure Sensor
Water pressure resistance: ≤ 1.75M Pa
Working voltage range: DC5-18V
is_customized: Yes
semi_Choice: yes

4 points Hall flowmeter G1/2 1-25L/min Turbine flow sensor YF-B3
product information:
1. Quick response and a wide range of applications
2. Fine workmanship and high-quality material selection
3. The seal does not leak
4. All copper material, wear-resistant and durable
5. Imported Hall originals, high sensitivity
Product Description:
The water flow sensor is mainly composed of a copper valve body, a water flow rotor assembly and a Hall sensor. Installed on the water inlet end of the water heater to detect the water flow rate. When the water passes through the water flow rotor assembly, the magnetic rotor rotates and the speed changes with the flow rate. The Hall sensor outputs the corresponding pulse signal and feeds it back to the controller. Judge the size of the water flow and adjust it.
The main parameters:
Model: YF-B3
Interface size: water inlet 4 points outer teeth, water outlet 4 points inner teeth
Working voltage range: DC5~18V
Inner diameter/outer diameter: 15mm/20.8mm
Thread length: long teeth 18.5mm short teeth 10.5mm
Material: Copper
Water pressure resistance: ≤1.75MPa
Output pulse high level: >DC4.7V (input voltage DC 5V)
Output pulse duty cycle: 50%±10%
Insulation resistance: >100MΩ
Flow range: [at 1~25L\MIN]±3%
Tightness: Close each hole, add 1.7Mpa water pressure test for 1 minute, no leakage and deformation
Flow pulse characteristics: (11*Q)Q=L/Min±3%
Precautions
1. Severe impact and chemical erosion are strictly prohibited.
2. Throwing or collision is strictly prohibited.
3. Vertical installation, the inclination does not exceed 5 degrees
4. The temperature of the medium should not exceed 120℃
List:
Water flow sensor*1






G1/2 water flow sensor turbine type flowmeter
product information:
1. This product is light and handy in appearance, small in size, and easy to install.
2.The impeller is inlaid with stainless steel beads, which is permanent and wear-resistant.
3.The sealing ring adopts the structure of upper and lower force and never leaks.
4. The Hall element is imported with original packaging and is encapsulated with potting glue to prevent water ingress and never age.
5. Wide application scenarios, widely used in water heaters, drinking fountains, water vending machines, campus credit card machines
The main parameters:
The water flow sensor is mainly composed of a plastic valve body, a water flow rotor assembly and a Hall sensor. It is installed at the water inlet end of the water heater to detect the water flow rate. When the water passes through the water flow rotor assembly, the magnetic rotor rotates and the speed changes with the flow rate. The Hall sensor outputs the corresponding pulse signal and feeds it back to the controller. The device judges the size of the water flow and regulates it.
Interface size: 4 points (G1/2)
Working voltage range: DC5~18V
Inner diameter/outer diameter: inner diameter water inlet 15.4, water outlet 13.5mm/ outer diameter 20.5mm
Thread length: 9.3mm
Water pressure resistance: ≤1.75MPa
Output pulse high level: >DC4.7V (input voltage DC 5V)
Output pulse duty cycle: 50%±10%
Insulation resistance: >100MΩ
Flow range: (at 1~25L\MIN) ±3%
Tightness: Close each hole, add 1.7Mpa water pressure test for 1 minute, no leakage and deformation
Pulse frequency: (Hz)=[ 11*Q ]±5%(Q--Flow L/min)
Wiring:
Red IN is connected to the positive pole
Yellow OUT signal output line
Black GND connect to negative pole
Precautions:
1. Severe impact and chemical erosion are strictly prohibited
2. Throwing or collision is strictly prohibited
3. Vertical installation, the inclination does not exceed 5 degrees
4. The temperature of the medium should not exceed 120℃
List:
Flow sensor*1










- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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