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Aqua Flow Meter: Smart Residential Submetering and Household Leak Detection
Quick Answer: The Aqua Flow Meter from Silver Automation Instruments is a DN15 or DN20 water meter for residential submetering and household leak detection. It gives property managers a direct way to bill tenants by actual water use and catch small leaks early. For pricing, send us your pipe size (DN15 or DN20), required output (pulse or RS485 Modbus), and monthly flow range.
Why Residential Submetering Needs an Aqua Flow Meter
Many apartment buildings still use one master water meter. The owner pays the whole water bill and splits the cost by floor area or by the number of occupants. Tenants do not see a reason to reduce water use. A small leak under a sink can run for months. The owner pays for the wasted water.
An Aqua Flow Meter on each apartment line changes this situation. Tenants pay for actual consumption. Leaks show up on the meter display or through a building management system. Property managers can compare daily flow and spot unusual use before the next billing cycle.
Here is the thing. Submetering is not only for large industrial plants. A DN15 residential water meter with pulse output can do the same job at a much lower cost. Silver Automation Instruments supplies these meters to building operators in Southeast Asia, the Middle East, and Latin America.
Household Leak Detection with the Aqua Flow Meter
Household leaks are often silent. A toilet flapper can leak 0.02 to 0.1 m³ per day. A dripping tap can waste 0.01 m³ per day. These numbers look small. Over 30 days, a leaking toilet can add 3 m³ to a water bill. Over one year, the waste can exceed 36 m³.
The Aqua Flow Meter detects this by monitoring minimum flow during off-peak hours. If the meter records flow between 2:00 AM and 4:00 AM when no one is using water, the system flags a possible leak. Building managers can then send a maintenance team to the correct unit. A flow alarm avoids checking every apartment one by one.
Key Specifications for Engineers and Building Managers
The Aqua Flow Meter comes in DN15 and DN20 sizes. Standard pressure rating is PN16. The meter handles water temperature from 0.1 to 50 °C. Accuracy meets Class B or better for typical residential flow ranges. Minimum flow is 0.03 m³/h for DN15. Maximum flow is 3.1 m³/h for DN15 and 5.0 m³/h for DN20.
Output options include pulse output and RS485 Modbus. Pulse output works with most billing systems and data loggers. RS485 Modbus is a good choice when the building already has a SCADA or energy management system. No 4-20 mA HART is required for this application. The meter is battery powered or external powered depending on the model. Battery life can reach 6 years under normal use.
The sensor body is rated IP68. The register cover
Installation Notes for Aqua Flow Meters
Install the meter in a horizontal or vertical pipe section with the flow arrow aligned to water direction. Keep a straight pipe length of 5 DN upstream and 3 DN downstream. For a DN15 meter, this means 75 mm straight pipe before the meter. Most apartment installations have enough space inside the riser cabinet.
Do not install the meter at the lowest point of a closed loop if air can collect there. Air bubbles cause false readings. Use a strainer upstream if the water contains sand or pipe scale. In practice, most building managers skip the strainer on clean municipal water lines. We have seen issues only in older buildings with galvanized pipes.
Last year a customer in Ho Chi Minh City ordered 120 Aqua Flow Meters for a serviced apartment building. The meters used DN15 connections and pulse output. Installation took three days. The property manager now bills each tenant based on actual water use. A similar project in Dubai used DN20 meters for villa water lines and RS485 Modbus for remote reading.
FAQ: Aqua Flow Meter for Residential Submetering and Leak Detection
Which pipe size do I need?
DN15 is standard for one apartment or small villa. DN20 is better for larger villas or combined cold water lines. Tell us your maximum flow in m³/h and we will confirm the size.
Can the Aqua Flow Meter detect small leaks?
Yes. The meter measures low flow down to 0.03 m³/h for DN15. A toilet leak usually falls in this range. RS485 models can send alarms when flow occurs during low-use hours.
What output signal works with my billing system?
Pulse output is the most common. One pulse can equal 1 liter, 10 liters, or 100 liters depending on the model. RS485 Modbus is better for remote reading across many meters.
Does Silver Automation Instruments supply spare parts?
Yes. We supply strainers, pulse splitters, and replacement register covers. We also provide wiring diagrams for common building management systems.
What information do you need for a price quote?
Send us your pipe size (DN15 or DN20), water pressure in bar, required output, and quantity. We will reply with a quotation within one business day.
Get a Quote from Silver Automation Instruments
Silver Automation Instruments supplies Aqua Flow Meters to property managers, facility maintenance teams, and water service contractors. For a specific price quote, send us your pipe size (DN15 or DN20), water pressure in bar, water temperature in °C, required output (pulse or RS485 Modbus), and quantity. Contact us by Tel: +86-135-1213-1526, Whatsapp: 86-135-12131526, or WeChat: +86 13512131526.