『DN80 Flow Meter: Three-Inch Nominal Metric Flanged Process Sizer Selection Manuals』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
DN80 Flow Meter: Three-Inch Nominal Metric Flanged Process Sizer Selection Manuals
Quick Answer: A DN80 flow meter fits a three-inch nominal bore pipe. Use a flanged DN80 electromagnetic flowmeter for water, wastewater, and other conductive liquids from about 10 m3/h to 150 m3/h. Use a DN80 Coriolis mass flowmeter for oil, solvent, or chemical mass measurement. Send flow range, pressure, temperature, and fluid type to Silver Automation Instruments for a model quote.
DN80 Size and Flange Standards
This three-inch nominal metric flanged process sizer selection manual covers DN80 flow meters. DN80 means nominal diameter 80 mm. The actual bore is roughly 77 mm to 80 mm depending on meter type and liner. The outer pipe diameter depends on schedule and pressure class. Common flange standards include EN 1092-1 PN16, ANSI B16.5 Class 150, and JIS 10K. Silver Automation Instruments supplies DN80 flow meters with 316L stainless steel body, PTFE lining, or full stainless wetted parts.
Sizing by Flow Velocity and Fluid
For liquids, target velocity is 1 to 5 m/s. For gas and steam, target velocity is 5 to 30 m/s. The cross section area of a DN80 pipe is about 0.0050 m2. At 1 m/s water velocity, flow is about 18 m3/h. At 5 m/s, flow is about 90 m3/h. Many DN80 electromagnetic flowmeters work from 8 m3/h to 160 m3/h. Do not size a DN80 meter for a flow below 2 m3/h if accuracy matters. Low flow causes high error in electromagnetic and vortex devices.
Technology Comparison for Three-Inch Lines
Electromagnetic DN80 flow meters suit conductive liquids. They have no moving parts. Typical accuracy is plus or minus 0.5 percent of reading. Minimum conductivity is 5 µS/cm. Demineralized water and most oils do not work with this technology. Coriolis mass flow meters suit mass flow and density. A DN80 Coriolis meter can measure 0 to 120,000 kg/h depending on model and pressure. They handle oil, solvents, and liquid chemicals. Accuracy is plus or minus 0.2 percent of reading. Vortex flow meters suit steam, gas, and clean low viscosity liquids. A DN80 vortex flowmeter can measure steam at 100 to 1,200 kg/h depending on pressure. Confirm minimum Reynolds number. Ultrasonic flow meters suit large pipes and non-invasive checks. For DN80, clamp-on ultrasonic is possible but less common for custody transfer. Oval gear flow meters suit high viscosity oil. For fuel oil above 20 cP, an oval gear meter is often better than a turbine or vortex meter. A DN80 oval gear flow meter may handle 2 to 30 m3/h for diesel and lube oil. Thermal mass flow meters suit gas only.
Flanged Process Connection Details
Flanged DN80 meter installation is straightforward. The meter body sits between two pipe flanges. Use gaskets matched to the fluid and pressure class. Bolt torque values must follow the flange rating. For PN16 DN80, typical bolt size is M16. For ANSI Class 150 DN80, typical bolt size is 5/8 inch. Do not overtighten a PTFE lined electromagnetic flowmeter. Silver Automation Instruments ships DN80 meters with flange faces pr
Installation and Environment
DN80 flow meters need straight pipe upstream and downstream. Most engineers skip this part, then see unstable readings. Keep 10D of straight pipe before a DN80 electromagnetic meter. For electromagnetic and vortex meters, allow 5D to 10D upstream and 3D to 5D downstream. D means nominal diameter. For DN80, 10D equals 800 mm. Install air release valves if the line is not always full. Avoid mounting the meter at the highest point without back pressure. For corrosive or humid sites, choose IP67 or IP68. For hazardous areas, request ATEX Zone 1 or Zone 2 certificate. We have seen many customer sites in Southeast Asia where a DN80 meter failed due to water hammer. Add a pressure relief valve if the line can slam shut fast.
Selecting a Model from Silver Automation Instruments
For water and wastewater, choose a DN80 electromagnetic flowmeter with PTFE lining, 316L electrodes, and 4-20 mA HART output. For chemicals and solvents, choose a DN80 Coriolis mass flowmeter with 316L wetted parts. For steam, choose a DN80 vortex flowmeter with built-in PT100 temperature compensation and pressure compensation. For diesel and heavy fuel oil, choose a DN80 oval gear flow meter. A water treatment plant in the Philippines uses a DN80 electromagnetic flowmeter for filtered water at about 75 m3/h. The unit sends 4-20 mA to a PLC. A chemical trader in Malaysia uses a DN80 Coriolis mass meter for solvent loading at 28,000 kg/h. The unit includes Modbus RTU output.
Data You Should Send for a Quote
Silver Automation Instruments is a flow meter manufacturer and supplier. We quote factory direct prices for DN80 flanged meters. Send these parameters: pipe size DN, fluid name, flow range, pressure in bar, temperature in °C, process connection standard, power supply, output signal, and hazardous area class. Those parameters let our engineers select liner, electrodes, body, and flange rating. We reply with a data sheet and price from Silver Automation Instruments. Contact Tel: +86-135-1213-1526. Whatsapp: 86-135-12131526. WeChat: +86 13512131526. Website: flow-meter.com.au
FAQ
What flow range fits a DN80 electromagnetic flowmeter? For water, 10 to 150 m3/h at typical velocity. Minimum 5 m3/h if accuracy is critical.
Can a DN80 flow meter handle gas? Yes. Use a DN80 vortex or thermal mass flow meter. Specify gas type, pressure, temperature, and flow in kg/h or m3/h.
Which flange standard is common for DN80? EN 1092-1 PN16 and ANSI B16.5 Class 150 are common. JIS 10K appears often in Southeast Asia and Oceania projects.
Does Silver Automation Instruments supply ATEX rated DN80 meters? Yes. We can provide ATEX Zone 1 and Zone 2 options for Coriolis, vortex, and electromagnetic units.
How do I get a price for a DN80 flow meter? Send fluid, flow range, pressure, temperature, flange standard, and output. Contact Tel: +86-135-1213-1526. Whatsapp: 86-135-12131526. WeChat: +86 13512131526.
Hot News
Related AD
