Current position > Product detail
『Blancett Flow Meter: Heavy-Duty Industrial Turbine Instruments』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)
Blancett Flow Meter: Heavy-Duty Industrial Turbine Instruments
Quick Answer: Blancett heavy-duty turbine flow meters handle high-pressure crude oil, hydraulic fracturing fluids, and chemical injection at wellheads without drifting out of calibration. Silver Automation Instruments keeps standard DN15 to DN200 models in stock and provides same-day quotes when you send your pipe size, pressure in bar, temperature in °C, and viscosity. Most engineers skip the lightweight plastic meters for these sites and go straight to a 316L stainless steel Blancett body with a tungsten carbide shaft.
Where Blancett Turbine Meters Fit in Your Plant
We see these meters on offshore platforms in Southeast Asia, on frac trucks in the Middle East, and inside Australian mining camps. The body is machined from a single piece of 316L or duplex stainless steel. There are no welds that can crack under vibration. The rotor runs on tungsten carbide bearings, which survive particle-laden fluids that would eat a standard journal bearing in six weeks. Because the bearing assembly is field-replaceable, a technician in Vietnam or Nigeria can swap it out in forty minutes without sending the meter back to a service center. Pipe sizes go from DN15 up to DN300, covering flow ranges between 0.4 m³/h and 6 800 m³/h depending on the model. Accuracy stays at plus or minus 0.5 percent of reading across a 10:1 turndown, and repeatability sits near 0.1 percent. These numbers come from calibration runs done with diesel and crude oil, not just water.
Materials That Survive Sour Gas and Seawater
The meter internals use a non-magnetic stainless steel rotor assembly that resists hydrogen sulphide cracking. We have supplied Blancett meters for a desalination plant in Chile where the brine passes through a DN80 turbine at 68 bar and 52 °C, 24 hours a day. The customer originally installed a competing meter with a plastic pickoff coil housing. After three months the housing swelled from chlorine attack and the signal dropped out. The Blancett pickoff is sealed in a 316L housing with a mineral-insulated cable, and the coil still reads clean square waves after 18 months. For high-temperature applications up to 230 °C, Silver Automation Instruments recommends specifying the remote amplifier option so the electronics stay in a cool panel away from the pipe. The same amplifier outputs a 4-20 mA HART signal, a scaled pulse, and a Modbus RTU register, so you can tie the meter into a Siemens or Rockwell PLC without an extra converter.
Viscosity Correction and Heavy Oils
Here is the thing with turbine meters: viscosity above 5 cP changes the K-factor curve, especially at low flow rates. Blancett prints an individual viscosity calibration curve for each meter from 1 cP up to 200 cP using a triple-point test. A paint manufacturer in Thailand runs alkyd resin at 120 cP through a DN50 Blancett meter and gets linearity within plus or minus 1 percent because the rotor geometry was designed with wider blade spacing for high-drag fluids. If you tell us your fluid, temperature, and viscosity range, we will pull the right rotor configuration from the factory. Do not just order a generic turbine meter for furnace oil and hope the numbers match the datasheet. Most suppliers skip the viscous calibration, and then the engineer on site ends up with a 3 percent offset that the PLC cannot fix.
Field Installation Details Engineers Ask About
Upstream straight pipe is critical. Blancett recommends 20 pipe diameters of straight run u
Pricing and Delivery from Silver Automation Instruments
Standard Blancett meters in DN15 to DN100, rated for ANSI 600 or PN100 flanges, ship from our bonded warehouse within three working days to Australia, Nigeria, and Chile. A DN50 316L turbine with 4-20 mA HART transmitter and local display starts around USD 2,450 FOB Nanjing, depending on the flange rating and hazardous area certification. ATEX Zone 1 and IECEx certification add approximately 12 to 15 percent to the base price and extend lead time by two weeks. We do not charge extra for the five-point calibration certificate; it comes in the box with every meter. Send us your pressure in bar, temperature in °C, pipe size DN, flow range, and fluid name to [email protected] or call us at +86-25-68650347. You can also reach us on WhatsApp at +86-25-52155837 or on WeChat at +86 15365082610. We will answer with a fixed price and a real delivery date within the same business day, not a generic quote a week later.
Frequently Asked Questions
Can a Blancett turbine meter measure water with sand particles?
Yes, if you order the tungsten carbide bearing option. Standard bearings wear fast when sand is present. The tungsten carbide upgrade adds around 18 percent to the meter cost and keeps the rotor spinning smoothly for years in produced water and mine dewatering applications.
What signal does the pickup coil give?
The magnetic pickup produces a sine wave with amplitude proportional to rotor speed. At minimum flow the signal is around 30 mV peak-to-peak. The remote or integral amplifier converts this into a square wave pulse, a 4-20 mA analog output, or Modbus RTU data. We configure the output type before shipping.
How often do the bearings need replacement?
In clean hydrocarbons, the tungsten carbide bearing set lasts three to five years. On frac sand-laden fluids, we have customers who replace the bearing cartridge every 18 months as a preventive measure. The cartridge costs roughly 18 percent of a new meter, so it is cheaper than swapping the whole instrument.
Does the meter work with high-viscosity bunker fuel?
Bunker fuel at 380 cSt can work if you order the low-drag rotor designed for viscosities above 200 cP. The turndown narrows to about 5:1, and you must keep the flow rate above the transition Reynolds number where the K-factor flattens out. We will send you the viscosity curve for your specific meter serial number so you do not have to guess.
What flange standards are available?
Blancett supplies ANSI 150 to 2500, PN16 to PN420, and JIS 10K to 40K flanges. Tri-Clamp and male NPT threads are also available on smaller sizes up to DN50 for hygienic and lubricant lines. Tell us the exact flange spec when you request a quote, and we will include the right gasket surface finish.