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Industrial 1.5 Inch Flow Meter with Flanged Processing Probes
Quick Answer: A 1.5 inch flow meter with flanged processing probes fits DN40 process lines and gives direct inline measurement for liquids, gas, steam and slurries. Silver Automation Instruments supplies these meters in electromagnetic, vortex, oval gear and Coriolis versions with 4-20 mA HART, RS485 Modbus or pulse output. Send your flow range, pressure, temperature and pipe schedule for a fixed quote.
Why Buyers Select a 1.5 Inch Flanged Process Meter
DN40 is a common size in chemical dosing, steam injection, fuel oil batch transfer and clean water skids. A flanged probe style is easier to service than wafer or threaded types because the meter body stays aligned during removal. Most engineers we speak with order 1.5 inch flanged meters for ANSI 150 or DIN PN16 lines. Some upgrade to ANSI 300 or PN40 for high pressure gas systems.
We have seen the same reducer setup on customer sites many times. A plant will start with a 2 inch main line and reduce to 1.5 inch for a skid mounted flow loop. In that case the flanged meter needs the same pressure rating as the skid piping.
Available Flow Meter Types for 1.5 Inch Flanged Process Probes
Electromagnetic flow meters work well for conductive liquids. Use them for raw water, wastewater, acids, caustic, slurry and liquid fertilizer. Silver Instruments offers an electromagnetic version with a PTFE or PFA liner and 316L electrodes. Accuracy is 0.5 percent of rate. Output can be 4-20 mA HART plus pulse.
Vortex flow meters fit steam, compressed air, nitrogen and hot water. They handle DN40 pipelines with a 316L body and a local display. Typical accuracy is 0.75 percent of rate for liquid and 1 percent for gas or steam. Vortex is often selected because there are no moving parts.
Oval gear flow meters handle fuel oil, diesel, lubricating oil, solvents and some chemicals. A 1.5 inch oval gear meter can cover 0.2 to 10 m³/h depending on viscosity. We recommend this type for batching because repeatability is high.
Coriolis mass flow meters measure mass flow, density and temperature in one device. A 1.5 inch Coriolis meter is common for edible oil, molasses, liquid sugar, LPG and high value chemical mixtures. Accuracy can reach 0.1 to 0.2 percent of rate.
So if your fluid is non-conductive, choose oval gear or Coriolis. If the fluid is conductive, choose electromagnetic.
Key Specifications to Confirm Before Ordering
Silver Automation Instruments is a flow meter manufacturer and supplier for DN40 flanged processing meters. Email us these process values and we will recommend a model with the right liner, electrode, body material and flange rating.
- Flow range in m³/h, kg/h, L/h or GPM
- Fluid name, viscosity and conductivity
- Pressure in bar and temperature in °C
- Pipe size DN40 plus flange standard and hazardous area class
Most 1.5 inch flanged probes from Silver Instruments ship with 24 V DC power, a 4-20 mA HART output and a local display. We can add RS485 Modbus or pulse output for flow totalizing.
Field Notes from Recent Inquiries
Last year a cus
A water plant in Peru ordered a 1.5 inch electromagnetic meter for a seawater pretreatment skid. The site needed a PTFE liner, 316L electrodes and a remote display.
A chemical plant in Saudi asked for an ATEX Zone 1 version of a 1.5 inch vortex flow meter for ammonia vapor. We quoted a 316L body and a remote electronics version for that installation.
Installation Notes for Flanged Processing Probes
Use the correct gasket material for the fluid. PTFE gaskets work for many acids. EPDM is common for water. For gas lines use the gasket type required by the site pipe spec.
Keep 10D of straight run upstream and 5D downstream when possible. Straight run is important for vortex and electromagnetic meters. Install the meter in a location with full pipe condition. Avoid air pockets for electromagnetic and Coriolis types.
In practice, most installers skip the straight run check. Skipped straight run causes unstable readings on vortex meters and noisy totals on electromagnetic meters.
Do not over tighten PTFE lined meters. Uneven flange bolt torque can damage the liner. Tighten in a cross pattern and follow the torque value provided with the manual.
Pricing and Delivery Notes
Price depends on flow meter type, liner material, flange rating and output. A basic 1.5 inch electromagnetic flow meter for water costs less than a 1.5 inch Coriolis mass flow meter for edible oil. Delivery is usually 3 to 7 working days for standard models. Custom flange drilling or special materials may add 7 to 15 working days.
For a fast quote, contact Silver Automation Instruments. Tel: +86-135-1213-1526. Whatsapp: 86-135-12131526. WeChat: +86 13512131526. Send us your pressure (bar), temperature (°C), pipe size (DN), and flow range.
Frequently Asked Questions
Q: What is the DN size of a 1.5 inch flow meter?
A: A 1.5 inch flow meter matches DN40 pipe in metric systems. Confirm the outer diameter and flange drilling with your pipe schedule before ordering.
Q: Can I use a 1.5 inch electromagnetic flow meter for diesel?
A: No. Diesel is not conductive enough for a standard electromagnetic meter. Use an oval gear or Coriolis flow meter for diesel and fuel oil.
Q: Do Silver Instruments flanged probes support ATEX Zone 1?
A: Yes. Many 1.5 inch flanged meters can be supplied with ATEX or IECEx approval for Zone 1 gas or Zone 21 dust environments. State the hazardous area class in your inquiry.
Q: What should I send for a price quote?
A: Send flow range, fluid, viscosity, pressure, temperature, pipe size and flange standard. You can contact Tel: +86-135-1213-1526, Whatsapp: 86-135-12131526 or WeChat: +86 13512131526.
Q: How long is standard delivery for a 1.5 inch flanged processing meter?
A: Standard models usually leave the factory in 3 to 7 working days. Custom materials, special flange ratings or hazardous area versions may take 7 to 15 working days.
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