Low-flow meter

precise measurement of small flow rates
Icon Durchflussmesser Kleinstmengen | Icon flowmeter for micro-volumes

Low-flow meters are specialized devices designed for the precise measurement of very small flow rates. These flow meters are used in various industrial sectors where the exact dosing or monitoring of very small quantities of liquid is crucial.

We offer a wide range of low flow meters based on different measuring principles and therefore suitable for various applications. These flow meters are characterized by their high precision, reliability and durability. They are easy to install and require little maintenance, making them the ideal solution for demanding measuring tasks.

Advantages of DDM flow meters for very small quantities

  • Simple integration
  • High precision
  • Long lifespan

The flow meters for very small quantities from DDM at a glance

Depending on the requirements and medium, you can choose between turbine flow meters, oval gear meters, ultrasonic flow meters and impeller flow meters. These flow meters are suitable for measuring various media, including water, oils, chemicals and other liquids. The selection of the optimum flow meter depends on factors such as the required measuring accuracy, the measuring range, the viscosity of the medium, the temperature and the pressure.

Turbine flowmeter for small flow rates from 0.06 l/min

Turbine flow meters are particularly well-suited for measuring small flow rates in clean media. They are characterized by their high measuring accuracy and fast response time. The turbine flow meters from DDM are available in various versions to meet the requirements of different applications. They have different protection classes so that they can also be used in harsh environments. Depending on the model, the turbine flow meters are equipped with different approvals such as NSF and are therefore suitable for the food industry.

turbine flow meter threaded Connection Messturbine Gewindeanschluss-VCT-AN
Price on Application

Thread: AN8; AN10; AN12

Measurement ranges: 0,1 to 100l/m

Repeatability: ± 0,025 % of reading

Temperature probe media exposed: Type T thermocouple

Datasheet : pdf | 314 KB

Price on Application
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Hose barbed connection Messturbinen Schlauchanschluss-VCT
Price on Application

Hose connection Ø: 9,8 to 32mm

Measurement range: 0,1 to 350l/min

Repeatability: ± 0,025 % of reading

Temperature probe media exposed: Type T thermocouple

Datasheet : pdf | 314 KB

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Oval wheel meter for small flow rates from 0.01 l/min

Oval gear meters are positive displacement flow meters known for their high accuracy and resistance to viscosity changes. They are particularly suitable for measuring small flow rates of liquids with high viscosity. The oval gear meters are available in various materials and designs to meet the requirements of different applications. Depending on the model, the oval gear meters are equipped with different approvals such as ATEX.

oval gear meter 1l-min Ovalradzähler 1l-min-OG1
From 411,40 

Connection: 1/4″ BSP F or NPT F

Measurement range: 0,01 … 1,0l/min at 30cst oil; 0,1 … 1,0l/min with water

Repeatability: ±0,1%

Output: Impuls NPN; voltage

Pressure Ranges: <10bar, <50bar, <400bar, <700bar

Temperature range: -20 – 80°C, -40 – 100°C, -40 – 150°C

Data sheet: pdf | 253 KB

From 411,40 
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oval gear meter 4l-min Ovalradzähler 4l-min-OG2
From 411,40 

Connection: 1/4″ BSP F or NPT F

Measurement range: 0,03 … 4,0l/min at 30cst oil; 0,15 … 4,0l/min with water

Repeatability: ±0,1%

Output: Impuls NPN; voltage

Pressure Ranges: <10bar, <50bar, <400bar, <700bar

Temperature range: -20 – 80°C, -40 – 100°C, -40 – 150°C

Data sheet: pdf | 261 KB

From 411,40 
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oval gear meter 10l-min Ovalradzähler 10l-min-OG3
From 1.052,10 

Connection: 1/2″ BSP F or NPT F

Measurement range: 0,05 … 10,0l/min at 30cst oil; 0,5 … 10,0l/min with water

Repeatability: ±0,1%

Output: Impuls NPN; voltage

Pressure Ranges: <10bar, <50bar, <400bar, <700bar

Temperature range: -20 – 80°C, -40 – 100°C, -40 – 150°C

Data sheet: pdf | 274 KB

From 1.052,10 
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oval gear meter 50l-min Ovalradzähler 50l-min-OG4
From 1.333,50 

Connection: 3/4″ BSP F or NPT F

Measurement range: 0,25 … 50,0l/min at 30cst oil; 2,5 … 50,0l/min with water

Repeatability: ±0,1%

Output: Impuls NPN; voltage

Pressure Ranges: <10bar, <50bar, <400bar, <700bar

Temperature range: -20 – 80°C, -40 – 100°C, -40 – 150°C

Data sheet: pdf | 240 KB

From 1.333,50 
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oval gear meter 100l-min Ovalradzähler 100l-min-OG5
From 2.971,90 

Connection: 1″ BSP F or NPT F, R21.50, G1-11

Measurement range: 0,5 … 100,0l/min at 30cst oil; 4,0 … 100,0l/min with water

Repeatability: ±0,1%

Output: Impuls NPN; voltage

Pressure Ranges: <10bar, <50bar, <400bar

Temperature range: -20 – 80°C, -40 – 100°C, -40 – 150°C

Data sheet : pdf | 233 KB

From 2.971,90 
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oval gear meter 200l-min Ovalradzähler 200l-min-OG6
From 4.285,80 

Connection: 1 1/2″ BSP F or NPT F

Measurement range: 2 … 200l/min at 30cst Öl; 10 … 200l/min with water

Repeatability: ±0,1%

Output: Impuls NPN; voltage

Pressure Ranges: <10bar, <50bar, <400bar,

Temperature range: -20 – 80°C, -40 – 100°C, -40 – 150°C

Data sheet: pdf | 225 KB

From 4.285,80 
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oval gear meter 500l-min Ovalradzähler 500l-min-OG7
Price on Application

Connection: 2″ BSP F or NPT F

Measurement ranges: 5 … 500l/min at 30cst oil; 20 … 500l/min with water

Wiederholbarkeit: ±0,1%

Output: Impuls NPN; voltage

Pressure Ranges: <50bar

Temperature range: -20 – 80°C, -40 – 100°C, -40 – 150°C

Data sheet: pdf | 220 KB

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Ultrasonic flow meter for small flow rates from 0.002 l/min

Ultrasonic flow meters  are non-contact devices, making them particularly suitable for measuring aggressive, corrosive, or abrasive media. They are characterized by their high measuring accuracy, simple installation and freedom from maintenance. The ultrasonic flow meters are available in different versions to meet the requirements of different applications. Depending on the model, the ultrasonic flow meters are equipped with different approvals, such as NSF and FDA.

ultrasonic knife industry Ultraschall-Durchflussmesser Industrie-atrato
From 830,20 

Connection: 3/8” John Guest, 1/2” BSP, 1/2” NPT

Measurement range: 2 … 500ml/min to 0,1 … 20l/min

Repeatability: ±0.1% (25 to 100% v.MB); ±0.5% (< 25 v.MB)

Material of wetted parts: PEEK / 316 ; PEEK / Borosilikatglas

Output: Impuls (NPN or PNP); 4 – 20mA; 0 – 10V; 0 -5V; Display

Temperature range: -10 – 60°C, -10 – 110°C

Data sheet: pdf | 1 MB

From 830,20 
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ultrasonic flow meter PFA hose Ultraschall-Durchflussmesser PFA Schlauch-MetraFlow
From 1.512,30 

Connection: 1/8” & 1/4″ hose

Measurement ranges: 20 … 1000 ml/min & 100 … 5000 ml/min

Repeatability: ±0.1% plus ±0.02% FSD

Material of wetted parts: PFA hose with FDA approval

Output: Impuls (NPN or PNP); 4 – 20mA; 0 – 10V; 0 -5V; Display

Temperature range: -10 – 60°C

Data sheet: pdf | 1,003 KB

From 1.512,30 
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ultrasonic flow meter prozess Ultraschall-Durchflussmesser Prozess Atrato
From 951,40 

Connection: ¼” BSP

Measurement range: 2 … 500ml/min to 0,1 … 15l/min

Repeatability: ±0.1% +0.005% FSD

Material of wetted parts: 316 and PEEK

Output: Impuls (NPN or PNP);

Data sheet: pdf | 643 KB

Manuel: pdf | 736 KB

From 951,40 
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Impeller flow meter for small flow rates from 0.05 l/min

Impeller flow meters are ideal for measuring small flow rates of low-viscosity liquids. They are characterized by their compact design and good price-performance ratio. The impeller flow meters are available in different versions to meet the requirements of different applications. Depending on the model, the impeller flow meters are equipped with different approvals and protection classes and are therefore also suitable for sensitive applications.

Flügelradzähler Beverage Mini mit NSF169-Zertifizierung und herforagendem Preis - Leistungsverhältnis | Beverage Mini impeller meter with NSF169 certification and outstanding price-performance ratio
From 33,30 

Hose connection Ø: 3/8“

Measurement range: 0,6 – 10 l/min

Repeatability: 0,1%

Material of wetted parts: PVDF including NSF

Output: Impuls (NPN or PNP)

Temperature range: -25 to 125°C

Data sheet: pdf | 129 KB

From 33,30 
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pelton wheel flow meter Flügelradzähler-800-Serie
From 67,30 

Hose connection Ø: 8 & 12mm

Measurement range: 0,05… 0,5 l/min to 0,50 … 15,0 l/min

Repeatability: 0,1%

Material of wetted parts: PVDF including NSF, customer-specific

Output: Impuls (NPN or PNP)

Temperature range: -25 … 60°C or -25 … 125°C

Data sheet: pdf | 244 KB

From 67,30 
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pelton wheel flow meter Flügelradzähler-900-Serie
From 308,60 

Connection: 1/4″ BSPF, 1/4″ NPTF

Measurement range: 0,05… 0,5 l/min to 0,50 … 15,0 l/min

Repeatability: 0,1%

Material of wetted parts: PVDF or stainless steel

Output: Impuls (NPN or PNP)

Temperature range: -25 … 60°C or -25 … 125°C

Data sheet: pdf | 410 KB

From 308,60 
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pelton wheel flow meter Flügelradzähler-1000 Serie
From 380,80 

Connection: 1/2″ BSPF

Measurement range: 0,05… 0,5 l/min to 2,0 … 30,0 l/min

Repeatability: 0,1%

Material of wetted partsin contact with media: PVDF or stainless steel

Output: Impuls (NPN or PNP)

Temperature range: -25 … 60°C or -25 … 125°C

Data sheet: pdf | 270 KB

From 380,80 
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optical detection turbine flow meters
From 177,60 

Connection: 8mm & 13mm hose; ¼“ up to 1“ BSP

Measurement range: 0,5 l/min to 160,0 l/min

Repeatability: 0,1%

Material of wetted parts : PVDF, PVC, Brass or Stainless Steel

Output: Impuls

Temperature range : -15 up to 125°C

Data sheet FT2 hall effect: pdf | 245 KB

From 177,60 
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optical detection turbine flow meters
From 177,60 

Connection: 8mm & 13mm hose; ¼“ up to 1“ BSP

Measurement range: 0,02 l/min up to 160,0 l/min

Repeatability: 0,1%

Material of wetted parts : PVDF, PVC, Brass or Stainless Steel

Output: Impuls

Temperature Range : -10 to 80°C

Data sheet FT2 optical: pdf | 238 KB

From 177,60 
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Flow meters for small quantities are used here

Low-volume flow meters are used across various industries, including:

  • Chemical industry: dosing of chemicals, monitoring of reactions
  • Pharmaceutical industry: dosing of medicines, filling of liquids
  • Food industry: dosing of flavors, bottling of beverages
  • Medical technology: dosing of medication, infusion systems
  • Water treatment: dosing of chemicals, monitoring of water quality
  • Laboratory technology: analysis of liquids, dosing of reagents

Flow measurement technology from a single source

In addition to flow meters, DDM Sensor Solutions also offers a range of complementary products that optimize flow measurement and control in customer-specific applications. These products include converters for converting the flow meter signals into standardized output signals and display devices for visualizing the measured flow rates.

Individual flow meters for small flow rates

DDM also offers customized flow meters that are precisely tailored to the individual requirements of the respective application. For example, properties such as the measuring range or the temperature range can be adapted to the specific requirements.

Maintenance and calibration of the flow meters

All flow meters from DDM Sensor Solutions are low-maintenance and durable. Regular calibration is recommended to ensure long-term measurement accuracy. DDM offers professional calibration services to ensure that the flow meters continue to function optimally. Maintenance of the flow meters is only necessary when the desired accuracy and repeatability are no longer achieved during calibration.

Get expert advice on small-quantity flow meters today!

Are you looking for the right flow meter for your application? Our team of experts will be happy to provide you with comprehensive and individual advice.  We look forward to your inquiries and tasks