『Gpi Flomec Pvc Water Processing and Irrigation Flow Meter Sizing Sheet: TM Series Sizing Guide』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
GPI Flomec TM Series PVC Flow Meter Sizing Guide for Water Processing and Irrigation
TM Series Sizing Sheet Explained
Quick Answer: The GPI Flomec TM Series is a PVC turbine flow meter built for water processing and irrigation lines from DN15 to DN50. Match your pipe size, flow range in liters per minute, pressure, and temperature on the sizing sheet to select the right meter. Silver Instruments can check your TM Series sizing data and quote a compatible PVC flow meter with pulse or 4-20 mA output.
Many engineers start with the TM Series sizing sheet because it lists flow ranges for clean water and light irrigation liquids. The meter body is PVC. Bearings are ceramic. The shaft is stainless steel or ceramic depending on the model.
Typical line sizes are DN15, DN20, DN25, DN40, and DN50. Each size has a different minimum and maximum flow. For example, a DN15 PVC turbine meter may read 2 to 30 liters per minute. A DN25 meter may read 5 to 100 liters per minute. A DN50 meter may read 20 to 400 liters per minute. Use the sizing sheet to verify these numbers before you buy.
Pressure and temperature matter. Most PVC flow meters have a pressure rating of 10 bar at 20 degrees Celsius. At higher temperatures the PVC body loses strength. For irrigation systems in Southeast Asia or the Middle East, water temperature often stays below 40 degrees Celsius. That is safe for PVC.
Output signals on the TM Series can be pulse, 4-20 mA, or a local display. A pulse output works well for batching and totalizing. A 4-20 mA signal suits PLC or SCADA systems. If your control panel accepts 4-20 mA HART, tell us before quoting. Silver Instruments can configure the meter output to match your wiring.
In practice, most engineers skip one step. They forget to check the minimum flow. A meter sized for DN50 may not read low flow when the irrigation zone runs at 10 percent capacity. We have seen this on customer sites in Vietnam and Australia. Send us your minimum and maximum flow, not just the pipe size.
Here is a real example. A customer in Vietnam needed a PVC flow meter for a drip irrigation header. Pipe size was DN25. Flow range was 8 to 25 liters per minute. Pressure was 4 bar. The TM Series sizing sheet showed a DN25 meter with pulse output. We quoted a compatible PVC turbine flow meter and shipped it in 10 days.
Installation is simple but you need straight pipe. Most PVC turbine meters need 10 pipe diameters
Silver Instruments supplies PVC flow meters for water processing, irrigation, and light chemical dosing. We stock DN15, DN20, DN25, DN40, and DN50 sizes. Body material is PVC. Wetted parts include ceramic bearings and a stainless steel or ceramic shaft. Seals are EPDM or FKM depending on the liquid.
You can use the GPI Flomec TM Series sizing sheet as a reference. Then send us your data. We will recommend a meter with the right flow range, pressure rating, and output. This saves time and avoids oversizing.
FAQ on TM Series PVC Flow Meter Sizing
Question 1: What pipe sizes does the TM Series sizing sheet cover? Answer: The TM Series typically covers DN15, DN20, DN25, DN40, and DN50 PVC pipe sizes. Verify your exact size on the sizing sheet before ordering.
Question 2: Can the TM Series measure water with small particles or sand? Answer: The TM Series works best with clean water or light irrigation liquids. Ceramic bearings resist wear but heavy sand or large particles can shorten bearing life. For dirty water, ask Silver Instruments about an electromagnetic flow meter.
Question 3: What output signals are available? Answer: Pulse, 4-20 mA, and local display options are common. Silver Instruments can also provide a 4-20 mA HART output for PLC or SCADA integration. Tell us your control panel requirements before quoting.
Question 4: How do I read the sizing sheet for pressure drop? Answer: Find your flow rate in liters per minute. Move across the row to see pressure drop in bar. Keep pressure drop below 0.3 bar for gravity fed irrigation lines. For pumped lines you can accept a bit more.
Question 5: Does Silver Instruments stock TM Series or compatible PVC flow meters? Answer: Silver Instruments stocks compatible PVC turbine flow meters with same DN sizes and outputs. We do not claim to be the original manufacturer. We provide a cost effective alternative with fast delivery to Southeast Asia, Oceania, Latin America, Africa, and the Middle East.
Contact Silver Instruments for a PVC flow meter quote. Send us your pressure in bar, temperature in degrees Celsius, pipe size in DN, and flow range in liters per minute. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610. Our website is flow-meter.com.au.
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