SI-3207 Small Diameter Turbine Flow Meter-3/8″

The SI-3207 small Diameter (small flow) liquid turbine flow meter,
is a precision flow measuring instrument,
that can be used to measure the flow and total volume of liquids.
The structure is explosion-proof and can show the total flow, instantaneous flow and percentage of flow fullness.
It is widely used in measurement and control systems in petroleum, chemical, metallurgical, scientific research and other fields.
Sensors equipped with sanitary fittings can be used in the pharmaceutical industry.
Accuracy1.0%, 0.5% to 2.0% of reading
Temp. range-20~+120℃
Pressure1.6 Map, 2.5Mpa, 6.4Mpa, 25Mpa, 40Mpa
Outputpulse output, 4~20mA, RS485 or Hart Protocol
Power24VDC, 12V DC,220VAC, battery
  • Flow sensor diameter: 3/8”, 10mm
  • Accuracy level: ±1.0%;
  • Liquid flow range: 0.2~1.2 m3/h or 0.15-1.5 m3/h
  • Ambient temperature: -20 ° C ~ +50 ° C;
  • Medium temperature: measuring liquid: -20 ° C ~ +120 ° C;
  • Nominal pressure: 1.6 Map, 2.5Mpa, 6.4Mpa, 25Mpa;
  • Explosion-proof grade: ExdIIBT4;
  • Connection method: threaded connection, flange connection, etc.;
  • Output function: pulse output, 4~20mA, RS485 or Hart Protocol
  • Turbine flow sensor material: stainless steel 304 or 316
  • Power supply : 24VDC, 12V DC,220VAC, battery

MediumNon-corrosive low velocity liquid without impurity,not suitable for gas/steam
AccuracyClass 1.0, class 0.5, class 0.2
Flange standardGB/T 9119-2010, DIN, ANSI, JIS
OutputPulse, 4-20mA analog output, RS485 (Modbus-RTU protocol), HART
Diameter and installationFlange connection DN15-DN200
Thread connection: DN2-DN25
Loose flange connection: DN4-DN200

Medium temperature


Default type T1: -20℃~+80℃  (Standard)

High temp. type T2: -20℃~+120℃  (OEM)

High temp. type T3: -20℃~+150℃(OEM)

Operation conditionOperating temperature: -20℃~+60℃
 Related humidity: 5%~90%  
Atmospheric pressure: 86kPa~106kPa
Ingress protectionIP65
Explosion proofExdIIBT6 (explosion proof type)

In addition to regular products, we support customization

DiameterDNXX       DN2~DN300mm
Converter TypeN1      24VDC,Pulse output,No display
N2      24VDC,Pulse output,No display,EX
A      24VDC,4-20mA output,No display,EX
E1      Battery power supply,No output,Digital display,EX
E2      24VDC,Pulse and 4-20mA output,RS485,Digital display,EX
E2+B      24VDC+battery power supply,Pulse and 4-20mA output,RS485,Digital display,EX
E3      24VDC,Pulse and 0-20mA output,RS485,Digital display,EX
E3+B      24VDC+battery power supply,Pulse and 0-20mA output,RS485,Digital display,EX
E+H      24VDC,4-20mA output,HART,Digital display,EX
G5      220VAC,Pulse and 4-20mA output,RS485,Digital display,EX
G6      220VAC,Pulse and 0-20mA output,RS485,Digital display,EX
Accuracy10     ±1.0%R
5     ±0.5%R
Flow RangeS    Standard Range
E    Extended Range
Body MaterialS4   SS304
S6   SS316
Explosion-Proof BT  Exd II BT6
 NA  None
ConnectionTHM External thread,Apply to DN4~DN50mm
THF Internal thread,Apply to DN4~DN50mm
WAF Flange clamp
DXX D16:DIN PN16 Flange;D25:DIN PN25 Flange
AXX A15:ANSI 150# Flange;A30:ANSI 300# Flange
JXX J10:JIS 10K Flange;J20:JIS 20K Flange

SI-3207  DN50  E2  10   S  S4  BT  D16  T2

①   ②  ③  ④  ⑤  ⑥  ⑦  

① Diameter:DN50

② E2:24VDC,Pulse and 4-20mA output,RS485,Digital display,EX

③ 10:1.0% of rate accuracy

④ S:Standard range 4-40m³/h

⑤ S4:SS304 Body Material

⑥ BT:Exd II BT6

⑦ D16:Flange DIN PN16

⑧ T2:-20~+120

SI-3207 Small Diameter Turbine Flow Meter is a kind of in-line type volumetric flow meter,

they are widely used in petroleum, organic liquids,
inorganic liquids,RO water, DI water,
chemical,liquefied gases and cryogenic fluids.
The small-caliber (small flow) liquid flowmeter has a simple structure,
light weight, high precision, good reproducibility,
responsiveness, convenient installation and maintenance.
Widely used in measuring closed pipes,
With stainless steel 1Cr18Ni9Ti, 2Cr13 and corundum Al2O3,
hard alloys do not corrode,
and there are no impurities such as fibers and particles.
a liquid having a kinematic viscosity at a working temperature of less than 5 × 10 -6 m 2 /s,
For liquids with a kinematic viscosity greater than 5 x 10-6 m2/s,
It can be used after the liquid flow calibration of the flowmeter.
Oct 09, 2019 at 14:08 pm


3/8″ turbine flow meter, this is exactly what we need.
There are many flow units that can be displayed, such as cubic meters, gallons, liters, standard cubic meters, standard liters, etc.
The fixed pressure and temperature parameters can be set to compensate for the gas.

Techincal Support

sanitary flow meter

Sanitary Flow Meter

Sanitary Flow Meter, also called the tri-clamp flow meter. Sanitary Flow Meters have stainless steel bodies and come standard with Tri-Clover fittings.

                  Wastewater flow meter

Wastewater Flow meters are flowmeters for water and wastewater treatment. Electromagnetic flow meters are suitable for open channel and underground industrial water pipes. Magnetic flow meters can be Remote type, compact type, insertion type. And ultrasonic flow meters are another choice, if you can not change your pipes. Both ultrasonic flow meters and magmeters are inline flow meters.

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