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Flow Sensors & Indicators

pFlow sensors and flow indicators are flowmeter devices used to measure the amount of liquid, gas or vapour that passes through them. They can also be known as flow gauges or liquid meters. Flow sensors are available as time measuring units, that measure flow rates over a set time period, or they can be totalising flow meters that continually measure the medium passed through./p pFlow sensors consist of a primary medium connection device, transducer and transmitter. The transducer senses the fluid that passes through the primary device. The transmitter produces an output signal from the raw transducer signal./p h2Types of Flow Sensors and Indicators/h2 pPaddlewheel Flow Sensors or Turbine: One of the most common types of flow sensor. The sensors are connected to a pipe with liquid passing through and turning a paddle wheel, the primary device calculates the speed as the paddle is turned. This simple structure is compact and can perform large-capacity measurement. Disadvantages are clogging and maintenance is required to cope with the axial wear otherwise the paddle needs replacing./p pRotaflow or Variable Area Flow Sensors: Rotaflow meters are a tapered tube and a float. It is most widely used for gases and liquids flow measurement because of its low cost, simplicity, low pressure drop and linear output./p pMagnetic-Inductive Sensors: This type of sensor detects three process categories, volumetric flow quantity, consumed quantity and medium temperature./p h2Applications for Flow Sensors/h2 pEach type of flow sensor has its own specific applications and installation constraints. There is no one size fits all flowmeter. The way to select the right flowmeter is to think about the application as a guide, not the technology. Many of the technologies work well on many applications. Starting with the application, will help to select the technology based on accuracy, cost, durability and reliability, rather than trying to make the technology fit the application you have. Can include the following applications:/p ulliWater treatment/li liCooling systems/li liIndustrial Washing Systems/li liIrrigation/li/ul h2Things to consider:/h2 ulliWhat is the fluid being measured, if not water what is its viscosity?/li liRate measurement or totalisation?/li liDisplay or signal output?/li liWhat is the minimum and maximum flowrate, process pressure and process temperature?/li liSize of the pipe/li/ul

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Description Price Media Monitored Device Type Minimum Flow Rate Maximum Flow Rate Supply Voltage Pipe Diameter Range Connection Type Maximum Pressure Material Minimum Media Temperature Maximum Media Temperature Minimum Operating Temperature Maximum Operating Temperature Current Rating
Gems Sensors RotorFlow Flow Indicator, 2 L/min → 20 L/min, RFI Series
RS Stock No. 395-6849
Mfr. Part No.142541BSPP
BrandGems Sensors
$161.81
Each
units
 Liquid RotorFlow 2 L/min 20 L/min - 1/4 in 1/4 BSP Female 13.8bar Brass - - -29°C +100°C -
Burkert Flow Meter,
RS Stock No. 313-5553
Mfr. Part No.426506
BrandBurkert
$2,277.75
Each
units
 - - - - 18 → 36 V dc DN 6 → 400 mm - - - - - -10°C +60°C -
Georg Fischer Paddlewheel Flow Sensor, 2537 Rotor-X Series
RS Stock No. 901-0071
Mfr. Part No.159001296
BrandGeorg Fischer
$1,120.66
Each
units
 - Paddlewheel - - - - - - - - - - - -
Honeywell Amplified Airflow Sensor, 0 sLpm → 5 SLPM, AWM5000 Series
RS Stock No. 395-184
Mfr. Part No.AWM5101VN
BrandHoneywell
$423.91
Each
units
 Dry Gas Amplified 0 sLpm 5 SLPM 15 V dc - 1/4 NPT 50psi Plastic - - 0°C +50°C -
Key Instruments Variable Area Flow Meter, 1.5 L/min → 20 L/min, FR4500 Series
RS Stock No. 361-0206
Mfr. Part No.FR4L71BVBN
BrandKey Instruments
$459.35
Each
units
 Liquid Variable Area 1.5 L/min 20 L/min - 1/4 in 1/4 NPT Female 6.89bar Acrylic - +65°C - +65°C -
Gems Sensors Turbine Flow Sensor, 1 L/min → 15 L/min, FT-110 Series
RS Stock No. 446-8309
Mfr. Part No.173939-C
BrandGems Sensors
$169.01
Each
units
 Liquid Turbine 1 L/min 15 L/min 5 → 24 V dc 3/8 in 3/8 BSP 200psi Nylon 12 - - -20°C +100°C -
Gems Sensors RotorFlow Electronic Flow Sensor, 15 L/min → 75 L/min, RFO Series
RS Stock No. 395-6883
Mfr. Part No.156262BSPP
BrandGems Sensors
$247.94
Each
units
 Liquid RotorFlow Electronic 15 L/min 75 L/min 4.5 → 24 V dc 1/2 in 1/2 BSP Female 13.8bar Brass -29 °C +100°C -29°C +100°C -
Georg Fischer Variable Area Flow Meter, 20 l/h → 200 l/h,
RS Stock No. 901-0258
Mfr. Part No.198807005
BrandGeorg Fischer
$266.12
Each
units
 Liquid Variable Area 20 l/h 200 L/h - - DN25 Socket - Plastic - - - - -
Honeywell Unamplified Airflow Sensor, -200 sccm → 200 cm³/min, AWM2000 Series
RS Stock No. 407-546
Mfr. Part No.AWM2100V
BrandHoneywell
$124.30
Each
units
 Dry Gas Unamplified -200 sccm 200 cm³/min 15 V dc 0.2 in - 25psi Plastic - - -25°C +85°C -
Gems Sensors RotorFlow Flow Indicator, 15 L/min → 75 L/min, RFI Series
RS Stock No. 395-6833
Mfr. Part No.155480BSPP
BrandGems Sensors
$118.76
Each
units
 Liquid RotorFlow 15 L/min 75 L/min - 1/2 in 1/2 BSP Female 6.9bar Polypropylene -29 °C +82°C -29°C +82°C -
Sensirion Liquid Flow Switch Flow Meter, 250 (Isopropyl Alcohol) →
RS Stock No. 898-6738
Mfr. Part No.LG01-2000A005
BrandSensirion
$233.30
Each
units
 Liquid Liquid Flow Switch 250 (Isopropyl Alcohol) 220 (Water) ml/min, 250 (Isopropyl Alcohol) ml/min 5 → 12 V 9.2 mm 5 Pin PCB Header 3bar Borosilicate Glass (Tube Material), FEP (Sealing), PEEk (Fitting) - - +10°C +50°C 6.8 mA
Key Instruments Variable Area Flow Meter, 0.8 L/min → 9 L/min, FR4500 Series
RS Stock No. 361-0199
Mfr. Part No.FR4L69BVBN
BrandKey Instruments
$420.80
Each
units
 Liquid Variable Area 0.8 L/min 9 L/min - 1/4 in 1/4 NPT Female 6.89bar Acrylic - +65°C - +65°C -
Sensirion Liquid Flow Switch Flow Meter, 250 (Isopropyl Alcohol) →
RS Stock No. 173-2224
Mfr. Part No.LG01-2000A005
BrandSensirion
$235.243
Each (In a Tray of 25)
units
 Liquid Liquid Flow Switch 250 (Isopropyl Alcohol) 220 (Water) ml/min, 250 (Isopropyl Alcohol) ml/min 5 → 12 V 9.2 mm 5 Pin PCB Header 3bar Borosilicate Glass (Tube Material), FEP (Sealing), PEEk (Fitting) - - +10°C +50°C 6.8 mA
Gems Sensors RotorFlow Flow Indicator, 15 L/min → 75 L/min, RFI Series
RS Stock No. 395-9337
Mfr. Part No.142542BSPP
BrandGems Sensors
$152.05
Each
units
 Liquid RotorFlow 15 L/min 75 L/min - 1/2 in 1/2 BSP Female 13.8bar Brass -29 °C +100°C -29°C +100°C -
Parker Variable Area Flow Meter, 2 L/min → 30 L/min, Easiflow Series
RS Stock No. 286-260
Mfr. Part No.EF.7731111290
BrandParker
$476.88
Each
units
 Liquid Variable Area 2 L/min 30 L/min - 1 in 1 BSP Female 10bar PET - - +5°C +60°C -
Simex Flow Counter Flow Meter, SPP Series
RS Stock No. 914-8495
Mfr. Part No.SPP-N118-1421-1-4-001
BrandSimex
$452.14
Each
units
 Fluid, Gas Flow Counter - - 85 → 260 V ac - Screw 25kPa ABS, Fibreglass - - 0°C +50°C 4 → 20 mA
Key Instruments Variable Area Flow Meter, 0.4 L/min → 5 L/min, MR3000 Series
RS Stock No. 198-2919
Mfr. Part No.MR3A14BVBN
BrandKey Instruments
$173.87
Each
units
 Gas Variable Area 0.4 L/min 5 L/min - 1/8 in 1/8 NPT Female 6.9bar Polycarbonate - +65°C - +65°C -
Key Instruments Variable Area Flow Meter, 0.1 L/min → 1.2 L/min, MR3000 Series
RS Stock No. 198-2903
Mfr. Part No.MR3A13BVBN
BrandKey Instruments
$168.80
Each
units
 Gas Variable Area 0.1 L/min 1.2 L/min - 1/8 in 1/8 NPT Female 6.9bar Polycarbonate - +65°C - +65°C -
Sensirion Digital Mass Flow Meter, 0 slm → 20 slm, SFM4100 Series
RS Stock No. 123-7151
Mfr. Part No.SFM4100 Air
BrandSensirion
$264.31
Each
units
 Gas Digital Mass 0 slm 20 slm 3.5 → 9 V 15.35 mm 2-Wire I2C 6 bar, 10 (Over Pressure) bar Aluminium (Coated), Epoxy, Gold, Nickel Plated Brass, Nitrile, Nylon, Oxygenoex, Pa-12, Si, Si3n4, Siox, Stainless Steel, Viton® 0 °C +50°C -20°C +80°C <12.5 mA
Georg Fischer Variable Area Flow Meter, 500 l/h → 500 l/h,
RS Stock No. 901-0239
Mfr. Part No.198807008
BrandGeorg Fischer
$308.75
Each
units
 Liquid Variable Area 500 l/h 500 L/h - - DN25 Socket - Plastic - - - - -
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