Water Flow Sensor YF

Name: Water Flow Sensor YF
Brand: MIKROE
SKU: MIKROE-6757
Price: 9.00 USD
Availability: InStock

PID: MIKROE-6757

Weight: 157 g

Status:

Water Flow Sensor YF (YF-B6) is designed to accurately detect and measure the flow of water, providing feedback for controlling and optimizing system performance. Built with a durable metal valve body, a water flow rotor assembly, and a Hall sensor, it delivers NPN pulse outputs that directly correspond to the flow rate, ensuring precise monitoring. Supporting a wide operating temperature range up to 80°C, humidity tolerance from 35% to 90% RH, and water pressure up to 1.75MPa, this sensor guarantees stable operation under demanding conditions. It operates on a conventional 3.5-24V supply, while built-in protection requirements ensure reliable use with PLCs, pumps, and motors. With its accurate sensing and straightforward integration, the Water Flow Sensor YF is ideally suited for application in fully automatic gas water heaters and other water flow monitoring systems.

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MIKROE products are not subject to U.S. tariffs. Under the U.S. HTSUS classification specified in Annex III, 9903.01.32, subdivision (v)(iii) of U.S. Note 2 and Executive Order 14257, they are exempt from ad valorem duty rates.

How does it work?

Water Flow Sensor YF (YF-B6) is designed for applications where accurate detection of inlet water flow is required, particularly in fully automatic gas water heaters. Its structure consists of a metal valve body, a water flow rotor assembly, and an integrated Hall sensor. When water enters through the inlet, it passes through the rotor assembly, causing the magnetic rotor to spin at a rate directly proportional to the flow speed. The Hall sensor then generates corresponding NPN pulse signals, which are transmitted to the controller. Based on these signals, the controller determines the flow rate and makes the necessary adjustments for efficient operation.

The sensor is engineered to operate under a wide range of conditions, with an allowable operating temperature of up to 80°C, a humidity tolerance of 35%–90% RH (non-condensing), and maximum water pressure support of 1.75MPa, ensuring durability and stability in demanding environments. For proper use, the sensor requires a power supply of 3.5-24V, and when connected to PLC systems or circuits involving pumps and motors, adequate anti-interference and surge isolation measures must be implemented to maintain signal accuracy. To protect the internal components from damage and ensure reliable measurements, a filter screen or suitable filtration device should be installed at the inlet to prevent particles and debris from entering.

The Water Flow Sensor YF is intended for indoor installation or integration within equipment enclosures, and it should not be exposed to outdoor environments or long-term harsh conditions such as excessive humidity, elevated temperatures, or vibration, as these factors may reduce measurement accuracy and sensor lifespan. With its precise sensing capability, durable construction, and straightforward integration, the Water Flow Sensor YF is an essential component for safe and efficient water heater systems.