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?

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รายละเอียดสินค้า / Description ราคา / 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
RS Stock No. 744-0705
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PFM725S-C6-A-W
Brand :SMC
THB10,453.60
Each
Units
Dry Air, Gas Integrated Display 0.5 L/min 25 L/min 24 V dc 6 mm One-Touch Fitting 750kPa PBT 0 °C +50°C 0°C +50°C -
RS Stock No. 395-9337
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.142542BSPP
Brand :Gems Sensors
THB3,982.86
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 -
RS Stock No. 780-0122
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LFS-03
Brand :Cynergy3
THB9,220.45
Each
Units
- Paddle 15.2 L/min, 19 L/min 60.6 L/min, 83.3 L/min 230 V 1 → 3 in 1 NPT 20bar Aluminium Alloy - - -30°C +150°C 1 A
RS Stock No. 361-0228
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2540A5L60PI
THB12,067.33
Each
Units
Liquid Variable Area 4 L/min 36 L/min - 1 in 1 NPT Female 6.89bar Acrylic - +65°C - +65°C -
RS Stock No. 780-0289
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FSVPLC06
Brand :Cynergy3
THB3,882.83
Each
Units
Liquid In-line 0.6 L/min 80 L/min 5 V ac G1 1 BSP Female 8bar Brass - +85°C - +85°C -
RS Stock No. 395-6990
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.166701-A
Brand :Gems Sensors
THB1,839.13
Each
Units
Gas Piston - 28 L/min 120 → 240 V ac/dc 1/4 in 1/4 BSP 10bar Noryl - +100°C - +100°C -
RS Stock No. 395-6984
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.166704
Brand :Gems Sensors
THB1,839.13
Each
Units
Liquid Piston - 3.8 L/min 120 → 240 V ac/dc 1/4 in R 1/4" 10bar Noryl - +100°C - +100°C -
RS Stock No. 395-7016
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.166703-A
Brand :Gems Sensors
THB1,839.13
Each
Units
Gas Piston - 158 L/min 120 → 240 V ac/dc 1/4 in 1/4 BSP 10bar Noryl - +100°C - +100°C -
RS Stock No. 198-2903
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MR3A13BVBN
THB3,443.72
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 -
RS Stock No. 831-185
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FM.26.322 219
Brand :Parker
THB23,560.47
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 395-6833
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.155480BSPP
Brand :Gems Sensors
THB3,031.30
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 -
RS Stock No. 907-3969
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.155481
Brand :Gems Sensors
THB5,020.03
Each
Units
Liquid RotorFlow Electronic 1.5 gal/min 20 gal/min 4.5 → 24 V dc 1/2 in 1/2 NPT Female 6.9bar Ploypropylene - +21°C -29°C +82°C 8 mA
RS Stock No. 616-3494
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.197093
Brand :Gems Sensors
THB1,757.32
Each
Units
Liquid Piston - 1 gal/min 200 V 1/4 in 1/4 Quick Disconnect Male 8.6bar Glass Reinforced PP -18 °C +100°C -18°C +100°C -
RS Stock No. 740-6436
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SU7000
THB31,048.92
Each
Units
Liquid Ultrasonic 0 L/min 50 L/min 19 → 30 V dc - 3/4 BSP 16bar Aluminium Alloy -10 °C +80°C -10°C +60°C -
RS Stock No. 511-3959
Brand :RS PRO
THB11,751.16
Each
Units
- - - 0.12 → 1.5 L/min 4.5 → 24 V dc 1/4 in - - - - - -25°C +125°C 10 mA
RS Stock No. 613-4216
Brand :RS PRO
THB6,707.07
Each
Units
Gas, Liquid Paddle 4 L/min 5.5 L/min 250 V ac 10 mm 3/8 BSP Female 25bar Nickel Plated Brass - +110°C - +110°C 5 A
RS Stock No. 744-0717
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PFM750S-C8-A-W
Brand :SMC
THB10,453.60
Each
Units
Dry Air, Gas Integrated Display 1 L/min 50 L/min 24 V dc 8 mm One-Touch Fitting 750kPa PBT 0 °C +50°C 0°C +50°C -
RS Stock No. 395-6962
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.166702
Brand :Gems Sensors
THB1,839.13
Each
Units
Liquid Piston - 1 L/min 120 → 240 V ac/dc 1/4 in 1/4 BSP 10bar Noryl - +100°C - +100°C -
RS Stock No. 122-8444
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.51594
Brand :Gems Sensors
THB10,631.87
Each
Units
Liquid Piston - 0.75 gal/min - 1/4 in 1/4 NPT Female 69bar Brass - - -29°C +148.9°C -
RS Stock No. 907-4003
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.173931-C
Brand :Gems Sensors
THB5,200.46
Each
Units
Liquid Turbine 0.5 l/min 5 L/min 5 → 24 V dc 3/8 in 3/8 NPT Male 13.7bar Nylon 12 - - -20°C +100°C 8 mA