Flow Sensors

Flow sensors or flow indicators are flow meter 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 (these measure flow rates over a set time period) or they can be totalising flow meters that continually measure the medium passed through.

Flow 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.

Types of Flow Sensor

Paddlewheel 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 a large-capacity measurement. Disadvantages are clogging and maintenance is required to cope with the axial wear otherwise the paddle needs replacing.

Variable Area Flow Sensors also known as Rotaflow meters: identified by their tapered tube and float designs. Widely used for gases and liquids flow measurement because of its low cost, simplicity, low-pressure drop and linear output.

Magnetic-Inductive Sensors: This type of sensor detects three process categories, volumetric flow quantity, consumed quantity and medium temperature.

Applications for Flow Sensors

Each type of flow sensor has its own specific applications and installation constraints. There is no one size fits all flow meter. The way to select the right flow meter 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:

  • Water treatment
  • Cooling systems
  • Industrial Washing Systems
  • Irrigation

Things to consider:

  • What is the fluid being measured, if not water what is its viscosity?
  • Rate measurement or summation?
  • Display or signal output?
  • What is the minimum and maximum flow rate, process pressure and process temperature?

...
Lees meer Lees minder

Filters

41 - 60 van 327 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs 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
RS-stocknr. 198-2997
Fabrikantnummer25102A14BVBN
FabrikantKey Instruments
€ 92,65
Each
Aantal stuks
Gas Variable Area 0.4 L/min 5 L/min - 1/8 in 1/8 NPT Female 6.89bar Acrylic - +65°C - +65°C -
RS-stocknr. 849-9436
FabrikantnummerPFMV530-1
FabrikantSMC
€ 222,20
Each
Aantal stuks
Dry Air, Gas Suction 0 L/min 3 L/min 12 → 24 V dc 4 mm One-Touch Fitting 500kPa PPS 0 °C +50°C 0°C +50°C -
RS-stocknr. 198-3029
Fabrikantnummer2510A2L10BVBN
FabrikantKey Instruments
€ 92,65
Each
Aantal stuks
Liquid Variable Area 10 ccm 100 cm³/min - 1/8 in 1/8 NPT Female 6.89bar Acrylic - +65°C - +65°C -
RS-stocknr. 256-562
€ 54,24
Each
Aantal stuks
Liquid Control Valve 3 L/min 6 L/min 240 V ac 15 mm - 8bar - +5 °C +85°C +5°C +70°C -
RS-stocknr. 907-4031
Fabrikantnummer173935-C
FabrikantGems Sensors
€ 86,64
Each
Aantal stuks
Liquid Turbine 1 l/min 25 L/min 5 → 24 V dc 3/8 in 3/8 NPT Male 13.7bar Nylon 12 - - -20°C +100°C 8 mA
RS-stocknr. 821-3897
FabrikantnummerHAFBLF0050CAAX5
FabrikantHoneywell
€ 95,19
Each
Aantal stuks
Dry Gas Amplified 0 sccm 50 sccm 5 V dc Maximum of 5.35 mm Tubing 25psi High Temperature Polymer - - -20°C +70°C -
RS-stocknr. 849-9398
FabrikantnummerPFM711-N02L-A-A
FabrikantSMC
€ 274,16
Each
Aantal stuks
Dry Air, Gas Integrated Display 2 L/min 100 L/min 24 V dc 1/4 in NPT 1MPa PBT 0 °C +50°C 0°C +50°C -
RS-stocknr. 849-9405
FabrikantnummerPFM711S-N02L-E-M
FabrikantSMC
€ 319,39
Each
Aantal stuks
Dry Air, Gas Integrated Display 2 L/min 100 L/min 24 V dc 1/4 in NPT 1MPa PBT 0 °C +50°C 0°C +50°C -
RS-stocknr. 361-0177
Fabrikantnummer2530A4A70BVBN
FabrikantKey Instruments
€ 226,73
Each
Aantal stuks
Gas Variable Area 30 L/min 280 L/min - 1/4 in 1/4 NPT Female 6.89bar Acrylic - +65°C - +65°C -
RS-stocknr. 907-4050
Fabrikantnummer194762
FabrikantGems Sensors
€ 193,80
Each
Aantal stuks
Liquid RotorFlow Electronic 8 gal/min 60 gal/min 4.5 → 24 V dc 1 in 1 NPT Female 13.8bar Brass - +21°C -29°C +100°C 8 mA
RS-stocknr. 172-2358
FabrikantnummerMFS02.PEXP.0
€ 73,301
Each (In a Tray of 50)
Aantal stuks
- - - - - - - - - - - -40°C +80°C -
RS-stocknr. 441-4879
FabrikantnummerS.800004
FabrikantParker
€ 79,66
Each
Aantal stuks
Liquid Variable Area 3 L/min 22 L/min - 3/4 in 3/4 BSP 10bar - - - - +60°C -
RS-stocknr. 395-6877
Fabrikantnummer156261BSPP
FabrikantGems Sensors
€ 178,20
Each
Aantal stuks
Liquid RotorFlow Electronic 2 L/min 20 L/min 4.5 → 24 V dc 1/4 in 1/4 BSP Female 13.8bar Brass -29 °C +100°C -29°C +100°C -
RS-stocknr. 725-9965
FabrikantnummerUF25B100
FabrikantCynergy3
€ 270,14
Each
Aantal stuks
Liquid Sensor/Switch without Indicator 0.5 L/min 25 L/min 7.5 → 26 V dc 10 mm 3/8 BSP 10bar ABS -10 °C +85°C -10°C +85°C -
RS-stocknr. 395-6978
Fabrikantnummer166703
FabrikantGems Sensors
€ 44,80
Each
Aantal stuks
Liquid Piston - 2 L/min 120 → 240 V ac/dc 1/4 in 1/4 BSP 10bar Noryl - +100°C - +100°C -
RS-stocknr. 407-574
FabrikantnummerAWM3100V
FabrikantHoneywell
€ 98,87
Each
Aantal stuks
Dry Gas Amplified -200 sccm 200 cm³/min 15 V dc 0.2 in - 25psi Plastic - - -25°C +85°C -
RS-stocknr. 121-8008
FabrikantnummerMFS02.PEXP.0
€ 91,78
Each
Aantal stuks
- - - - - - - - - - - -40°C +80°C -
RS-stocknr. 123-7151
FabrikantnummerSFM4100 Air
FabrikantSensirion
€ 132,03
Each
Aantal stuks
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
RS-stocknr. 780-0282
FabrikantnummerFSVPLC30
FabrikantCynergy3
€ 88,89
Each
Aantal stuks
Liquid In-line - 80 L/min 5 V ac G1 1 BSP Female 8bar Brass - +85°C - +85°C -
RS-stocknr. 456-3050
FabrikantnummerSF5350
Fabrikantifm electronic
€ 170,60
Each
Aantal stuks
Gas, Liquid Modular Flow Monitoring 3 (Liquids) ccm/s, 200 (Gases) ccm/s 300 (Liquids) cm³/s, 3000 (Gases) cm³/s - - M18 x 1.5 300bar Stainless Steel -25 (Gases) °C, -25 (Liquids) °C +80°C - - -