SKU: SENS-0656
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SEA DN32 Water Flow Sensor Flowmeter 1-120L/min - 3.5-24V Hall Effect, 1.25'' Thread

₹1,719.00 (Inclusive of all taxes)
Out of Stock

The SEA DN32 Water Flow Sensor is a Hall-effect-based flowmeter designed for inline water flow measurement in industrial and commercial systems. It operates from a wide 3.5-24V DC range, making it compatible with PLCs, Arduino, and other control systems, and outputs a pulse signal proportional to flow rates from 1 to 120 liters per minute.

Features

  • Hall-effect sensor outputs pulse frequency proportional to flow rate (1-120 L/min).
  • Wide operating voltage range from 3.5V to 24V DC for flexible system integration.
  • Robust construction with ABS plastic body and metal components, rated for ≤2.0 MPa water pressure.
  • DN32 (1.25″) threaded interface for easy installation into standard piping systems.
  • Features stainless steel bearings and permanent magnet rotor for long-term durability and resistance to wear.

Out of stock

Description

The SEA DN32 flow sensor utilizes a Hall-effect sensing principle. As water flows through the valve body, it spins an internal rotor equipped with a magnet. A Hall-effect sensor detects each rotation of the magnet, generating a corresponding digital pulse signal. The frequency of this pulse output is directly proportional to the volumetric flow rate, allowing for precise flow monitoring and totalization.

Engineered for demanding environments, the sensor features a sealed construction with upper and lower force sealing rings to prevent leaks. The internal components, including stainless steel bearings and a non-corrosive permanent magnet, are selected for longevity and consistent performance under continuous operation. It is suitable for monitoring flow in pressurized water systems up to 2.0 MPa.

Key Features

  • Pulse-output Hall-effect sensor provides a clean, digital signal for easy microcontroller interfacing.
  • Wide 3.5-24V DC operating voltage ensures compatibility with 5V logic (Arduino) and 12V/24V industrial systems.
  • Durable ABS plastic and metal housing withstands high-pressure applications up to 2.0 MPa.
  • DN32 (32mm / 1.25-inch) threaded port allows for direct integration into standard pipe networks.
  • Stainless steel rotor bearing ensures low friction and superior wear resistance over extended use.
  • Permanent magnet rotor design eliminates concerns about rust or magnetic degradation.
  • Advanced sealing ring structure applies uniform pressure to guarantee a reliable, leak-proof seal.
  • Optimized performance-to-cost ratio for commercial water dispensing, irrigation, and industrial process control.

Applications

  • Flow monitoring and totalization in commercial water dispensers and coffee machines.
  • Irrigation system flow control and leak detection in agricultural setups.
  • Process water flow measurement in chemical and light industrial applications.
  • Water usage monitoring and pump protection in residential and commercial buildings.
  • Cooling loop flow rate verification in HVAC and industrial machinery.

Technical Specifications

Model / NameSEA DN32 Water Flow Sensor
Measurement PrincipleHall Effect (Pulse Output)
Flow Range1 to 120 L/min
Operating Voltage3.5 to 24 V DC
Max Water Pressure≤ 2.0 MPa
Interface / Thread SizeDN32 / 1.25 inch
Housing MaterialABS Plastic, Metal
Rotor BearingStainless Steel
Length120 mm
Width50 mm
Weight190 g

Frequently Asked Questions

What is the output signal type of this DN32 flow sensor?

The sensor outputs a digital pulse signal via its integrated Hall-effect sensor. Each pulse corresponds to a specific volume of water passing through, allowing you to calculate both flow rate (from frequency) and total volume (by counting pulses) using a microcontroller like an Arduino or PLC.

What is the maximum system pressure this sensor can handle?

This flow sensor is rated for a maximum working water pressure of ≤2.0 Megapascals (MPa). Ensure your piping system's operating pressure does not exceed this limit to maintain sensor accuracy and prevent damage to the housing and seals.

How do I interface this sensor with an Arduino or Raspberry Pi?

Connect the sensor's power wires (typically red and black) to a 3.5-24V DC source and ground. Connect the signal wire (often yellow or blue) to a digital input pin on your microcontroller. Use code to read the rising-edge interrupts or monitor the pin state to count pulses and calculate flow based on the sensor's specified pulses per liter characteristic.

Is the sensor suitable for liquids other than water?

This sensor is specifically designed for clean water applications. Using it with other liquids (like chemicals, oils, or dirty water) may damage the internal rotor, bearings, or seals, and will affect calibration. For non-water fluids, consult the manufacturer for compatibility and consider sensors specifically rated for those media.

Package Includes

  • 1 x SEA DN32 Water Flow Sensor Flowmeter

Additional Information

Weight 0.19 kg
Dimensions 12 × 5 cm