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China Flow Meter: Sourcing Procurement Directory for Metric Utility Sizers
Quick Answer: For metric utility sizing in water, wastewater, steam, fuel oil, and chemical dosing, choose a flow meter with DN15 to DN300 connections, 4-20 mA HART output, and ratings for your pressure and temperature. Silver Automation Instruments supplies electromagnetic, ultrasonic, vortex, oval gear, thermal mass, Coriolis, pressure transmitters, and paperless recorders from China. Send your pipe size, pressure, temperature, and flow range for a direct quote.
What This Sourcing Directory Covers
This China flow meter sourcing procurement directory for metric utility sizers helps engineers and procurement teams find suppliers for utility systems measured in metric units. It focuses on pipe sizes from DN10 to DN300 and common outputs such as 4-20 mA, pulse, RS485 Modbus, and HART.
Silver Automation Instruments ships direct from its Nanjing factory to buyers in Southeast Asia, Oceania, Latin America, Africa, and the Middle East. We supply industrial end users and distributors with teams from 10 to 100 staff.
Metric Utility Sizing: Key Parameters
Most utility flow meters are sized by nominal diameter. A DN50 electromagnetic meter handles a typical 10 to 50 m3/h range at 0.5 to 5 m/s flow velocity. For steam, a DN80 vortex meter often covers 100 to 800 kg/h depending on pressure.
Here is the thing. Many buyers share only pipe size. That is not enough. You need the actual flow range, pressure, temperature, and fluid conductivity.
Most engineers skip this part. They specify a flow meter by line size and then wonder why accuracy drops at low flow. A DN100 meter on a 5 m3/h night flow will read poorly. The solution is a smaller meter or a meter with wide turndown.
For example, an ultrasonic flow meter needs clean liquid with low solids. Raw water with sludge may be better for an electromagnetic meter as long as conductivity is above 5 µS/cm. Diesel and heavy oil often need oval gear or Coriolis meters because density and viscosity change with temperature. High viscosity fluids above 500 cP can reduce oval gear accuracy unless the meter is corrected.
Which Flow Meter Matches Which Utility Fluid
For drinking water distribution, use full bore electromagnetic flow meters with PTFE or rubber liners. DN15 to DN200 sizes are common. Output can be 4-20 mA HART with RS485 Modbus. Use IP65 or IP67 converters for indoor panels and IP68 sensors for buried pits.
For desalination seawater intake, a seawater flow meter for desalination plant usually needs rubber lining, titanium electrodes, and a remote display. Silver Instruments supplies this type for Middle East and North Africa projects.
For steam and natural gas utility lines, vortex flow meters with integrated PT100 temperature compensation are practical. A DN50 line at 8 bar and 180°C often uses a DN50 vortex meter with a 4-20 mA HART transmitter.
For chemical dosing and syrup batching, Coriolis mass flow meters give direct mass output in kg/h. They work well for flow ranges from 0.1 kg/h to 10,000 kg/h. Use them when fluid density is unknown or when the recipe is weight based.
For compressed air and flare gas, thermal mass flow meters are common. They measure standard volumetric flow and can trip an alarm at l
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For diesel, fuel oil, and palm oil, oval gear flow meters with pulse output are simple and low cost. A paint manufacturer in Southeast Asia used 10 oval gear meters on solvent lines because mechanical counters survived the solvent vapor.
Instrument Panels and Recorders
Many water treatment stations order flow meters with pressure transmitters and paperless recorders. A pressure transmitter with a 4-20 mA HART signal can be wired to the same recorder. This gives a one screen view of flow, pressure, and totalized volume.
We have seen customer sites in Indonesia and Ghana use this setup for borehole water supply and reverse osmosis units. The panel cost stays low because all instruments come from one factory.
Why Buyers Use a China Sourcing Directory
A procurement directory helps you compare factory direct suppliers, lead times, and certifications. Silver Automation Instruments can provide ATEX Zone 1 options, PT100 inputs, 4-20 mA HART outputs, and paperless recorders for audit trails.
In practice, buyers from Vietnam, Indonesia, Australia, South Africa, and Chile ask for the same thing: a specific meter that can be installed without changing the pipe run. So we ask for DN, fluid, pressure, temperature, and flow range.
Last year a contractor in the Philippines ordered 12 electromagnetic flow meters for a DN150 raw water line. They needed IP68 sensors and compact converters. The order shipped from Nanjing in 14 days.
Lead Time and Export Documentation
Electromagnetic and vortex meters in standard DN15 to DN200 sizes can ship in 7 to 14 days. Custom liners, ATEX Zone 1 certification, or remote cable lengths may add 5 working days.
We include the packing list, commercial invoice, certificate of origin, and calibration report in each export box. For Australia and New Zealand orders we also check the import paperwork with the buyer before dispatch.
Frequently Asked Questions
What flow meter type should I choose for utility water lines?
Electromagnetic flow meters are the standard choice for raw water, potable water, and wastewater because they handle low conductivity liquids and do not block the pipe.
Can Silver Instruments supply flow meters for seawater desalination?
Yes. We supply electromagnetic flow meters with rubber lining and titanium electrodes for seawater intake and brine lines. Send the salinity, flow range, and pipe size for a quote.
Do I need a Coriolis meter or an oval gear meter for diesel?
For custody transfer or heavy oil with changing density, choose a Coriolis mass flow meter. For simple diesel consumption monitoring, an oval gear meter with pulse output is usually enough.
What output signals are available?
Most meters support 4-20 mA HART, pulse, RS485 Modbus, or a combination. Pressure transmitters and paperless recorders can be added to one panel.
How do I get a price for a metric utility flow meter?
Send us your pipe size (DN), pressure (bar), temperature (°C), flow range (kg/h or m3/h), and fluid type. We will reply with a model, data sheet, and export price.
For a specific quote, contact Silver Automation Instruments. Tel: +86-135-1213-1526. WhatsApp: 86-135-12131526. WeChat: +86 13512131526.
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