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3/4 Inch Brass Water Flow Meter for Residential Submetering
Quick Answer: Silver Automation Instruments delivers 3/4 inch (DN20) brass water flow meters built for residential submetering. These meters allow property managers to bill each unit by real water usage. Standard accuracy reaches Class B, R80 to R160, with pulse output for remote reading. They are used in apartments, condominiums, and villa compounds across Southeast Asia, the Middle East, and Africa.
Why Brass Submetering Valves Are a Practical Choice
In residential buildings, a single master meter often leads to unfair billing and high common costs. Installing a 3/4 inch brass water flow meter at every apartment entrance solves this problem. The brass body provides good corrosion resistance at a moderate cost. These meters handle water at up to 16 bar pressure and 50 degrees Celsius. The built-in non-return valve prevents backflow, which keeps the piping safe in multi-story blocks.
Specifications That Matter for Daily Billing
The meter uses a DN20 connection, exactly 3/4 inch in thread size. The measuring element is a multi-jet design, offering reliable readings even with low flow. Overload flow rate Q4 is 5 cubic meters per hour, while the permanent flow Q3 sits at 4 m3/h. Minimum flow Q1 can be as low as 25 liters per hour for R160 models. The register is dry type, vacuum sealed to prevent fogging. Every meter leaves the factory with a calibration certificate traceable to ISO 4064.
Remote Reading for Modern Property Management
Many installations require automatic meter reading. Silver Instruments supplies the 3/4 inch meter with a reed switch pulse output. One pulse represents 10 liters or 100 liters, depending on the model. You can connect it to an M-Bus or wireless LoRaWAN converter. A facility manager in Oman recently integrated 320 units with a cloud dashboard. The system now sends monthly consumption reports to each tenant via SMS.
Where These Meters Are Being Installed
We have shipped thousands of these submeters to high-rise apartments in Ho Chi Minh City, student housing in Brisbane, and staff quarters at a chemical plant in Jeddah. In each case, the facility owner needed a meter that is easy to
How to Order with the Right Options
Send us an email with your pipe diameter (DN15, DN20, DN25), working pressure in bar, and typical flow range. We will suggest the right meter with pulse output, M-Bus, or Modbus interface. Provide your shipping port if you are in Manila, Lagos, Dubai, or Callao. Our team in Nanjing responds within 12 hours. You can reach us by phone or message: Tel: +86-25-68650347, WhatsApp: +86-25-52155837, WeChat: +86 15365082610.
Frequently Asked Questions
1. Can the 3/4 inch brass meter handle hot water?
No, the standard version is rated for cold water up to 50 degrees Celsius. For hot water submetering, we recommend a brass meter with PT100 temperature sensor and a totalizer that records energy. Ask our team for the hot water variant.
2. What is the pulse output rate?
We offer 1 pulse per 10 liters, 1 pulse per 100 liters, or 1 pulse per cubic meter. The pulse duration is 50 milliseconds, enough for most data loggers. You can specify the rate when you order.
3. Do the meters meet ISO 4064 or MID standards?
Yes, our multi-jet meters comply with ISO 4064 Class B and R80 to R160 ratios. For European projects that need MID certification, we can provide a separate certified batch. Mention your requirement in the request.
4. Can I get a meter with an integrated shut-off valve?
Yes. We supply a version that includes a ball valve and a brass strainer in one compact body. This is popular in Brazilian condominiums where maintenance staff must quickly isolate a unit. The maximum pressure for the valve-included model is 10 bar.
5. How many meters fit in a typical residential meter cabinet?
A standard cabinet can hold six to eight DN20 meters side by side. We provide mounting brackets and union nuts for easy alignment. If you are planning a meter room for 100 units, send us a layout drawing. We will estimate the space and propose the best arrangement.