Water Flow Sensor YF - DN50

The Water Flow Sensor YF - DN50 is a precision turbine-type flow meter designed for accurate measurement of water and compatible liquid flow rates in DN50 (2-inch) pipe systems. Industrial automation engineers, HVAC technicians, and water treatment facility operators rely on this sensor to monitor flow rates in real-time with high accuracy and reliability. This sensor solves critical flow measurement challenges in closed-loop systems where precise volumetric monitoring is essential for process control, billing, and system diagnostics.

Product Overview

The YF - DN50 operates on the turbine wheel principle, where flowing water rotates an internal rotor at a speed proportional to the flow rate. The rotation is detected by a magnetic pickup coil that generates pulse signals corresponding to each rotor blade passage. These pulses are then converted to frequency output, which can be easily interfaced with PLC systems, flow computers, or data acquisition devices. The DN50 nominal diameter accommodates flow rates typically between 10 to 200 cubic meters per hour, making it suitable for both industrial and commercial water distribution networks.

What distinguishes the YF - DN50 model is its robust stainless steel construction that resists corrosion in various water conditions, combined with low pressure drop characteristics that minimize energy losses in pumping systems. The sensor features a flanged connection design for easy installation in existing pipeline infrastructure without requiring extensive modifications. Its excellent linearity across the operating range ensures consistent accuracy, while the digital pulse output enables seamless integration with modern IoT and smart metering systems for remote monitoring and data logging capabilities.

Key Specifications

Specification	Details
Product Type	Turbine Type Water Flow Sensor
Nominal Diameter	DN50 (2 inches)
Flow Range	10 to 200 m³/h
Accuracy	±2% of actual flow rate
Output Signal	Pulse frequency (4.4 pulses per liter)
Operating Pressure	Up to 16 bar (1.6 MPa)
Temperature Range	0°C to 60°C
Connection Type	Flanged (ISO 1092-1 PN16)
Material	Stainless Steel body with brass rotor
Pressure Drop	Less than 0.25 bar at maximum flow
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• Turbine rotor design with low inertia enables rapid response to flow changes, providing real-time measurement updates suitable for dynamic process control applications
• Stainless steel construction with corrosion-resistant materials ensures long operational life in potable water, recirculation, and industrial fluid handling systems
• Pulse output signal (4.4 pulses per liter) is directly compatible with PLC, microcontroller, and smart meter interfaces without requiring analog-to-digital conversion modules
• Flanged connection design allows straightforward installation in existing pipeline networks with minimal downtime and no need for welding or special adapters
• Minimal pressure drop of less than 0.25 bar reduces energy consumption in pumping systems, lowering operational costs over the sensor's lifetime
• High accuracy of ±2% across the entire flow range ensures reliable billing, process control, and system performance monitoring

Applications and Use Cases

• Municipal water distribution networks where DN50 flow sensors monitor supply lines to residential and commercial areas for consumption billing and leak detection
• HVAC chilled water systems in large buildings where precise flow measurement maintains optimal cooling efficiency and enables predictive maintenance through flow trend analysis
• Industrial process cooling circuits in manufacturing plants where consistent water flow rates are critical for product quality and equipment protection
• Water treatment and recycling facilities where flow sensors track throughput across filtration, chemical dosing, and recirculation stages for process optimization
• Irrigation and agricultural applications where flow measurement ensures accurate water distribution to different zones and enables water usage reporting
• Data center cooling systems where real-time flow monitoring helps prevent thermal runaway conditions and optimizes cooling resource allocation

How to Use

Installation of the Water Flow Sensor YF - DN50 requires proper pipeline preparation and orientation. First, ensure the pipeline is depressurized and drained before installation. Position the sensor in the horizontal or vertical orientation as indicated by the directional arrow on the sensor body, ensuring flow direction matches the marked arrow. The flanged connections should be sealed with appropriate gaskets (typically EPDM or Viton) and bolted securely to the pipeline flanges using the correct bolt torque specifications to prevent leakage. After installation, flush the pipeline thoroughly to remove any debris or welding residue that could damage the internal rotor.

For electrical connection, the sensor typically provides two output wires for pulse signal transmission. Connect the positive wire to your PLC input module or flow computer's positive terminal and the negative wire to ground. Configure your data acquisition system to count pulses and convert them to flow rate using the calibration factor of 4.4 pulses per liter. Before operation, verify the sensor is properly grounded to prevent electrical noise interference. Allow the system to stabilize for 15-20 minutes before taking measurements. Periodically inspect the sensor connection for any water leakage and verify pulse output consistency using a multimeter or oscilloscope to ensure continued accuracy.

Frequently Asked Questions

What is the maximum flow rate the YF - DN50 can accurately measure?

The YF - DN50 is rated for a maximum flow rate of 200 cubic meters per hour (m³/h). Operating beyond this limit can damage the rotor mechanism and compromise accuracy. The sensor maintains ±2% accuracy across the entire range from 10 to 200 m³/h, so ensure your application falls within these specifications before installation.

Can this sensor be used with fluids other than water?

The YF - DN50 is primarily designed for clean water and compatible liquids with similar viscosity and density characteristics. It can handle potable water, recirculated chilled water, and treated industrial water. However, it is not suitable for highly viscous oils, slurries, or corrosive chemicals without special material upgrades. Always verify fluid compatibility with our technical team before using it with non-standard liquids.

How do I convert the pulse output to flow rate in my monitoring system?

The YF - DN50 generates 4.4 pulses per liter of water flow. To calculate flow rate, count the pulses over a specific time period and use the formula: Flow Rate (L/min) = (Pulse Count / 4.4) / Time (minutes). Alternatively, if your PLC or flow computer supports frequency input, the output frequency in Hz directly correlates to flow rate. Most modern SCADA systems have built-in pulse-to-flow conversion functions where you simply input the calibration constant of 4.4 pulses/liter.

What is the pressure rating and can it handle high-pressure applications?

The YF - DN50 is rated for operating pressures up to 16 bar (1.6 MPa or approximately 230 psi). This rating is suitable for most municipal water supply and industrial cooling applications. If your system operates at higher pressures, contact our technical team for alternative sensor models or pressure-rated variants that can handle up to 25 bar or higher ratings.

How often should the sensor be calibrated or serviced?

The YF - DN50 is a precision instrument that maintains its calibration for extended periods under normal operating conditions. We recommend annual verification against a reference flow meter if used in critical billing or process control applications. Regular maintenance involves checking for water leaks at connection points and verifying pulse output consistency. If the sensor is exposed to sediment or mineral buildup, periodic flushing of the pipeline may be necessary to maintain accuracy.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy Water Flow Sensor YF - DN50 Online in India

Purchase the Water Flow Sensor YF - DN50 online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Water Flow Sensor YF - DN50 with fast shipping and expert support.

Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.