Turbine flow meters offer a precise and reliable method for measuring the volumetric flow rate of water in a wide variety of industrial and technical applications. DDM Sensors develops precise turbine flow meters that operate on the turbine principle and are specifically engineered for use with water.
DDM Sensors Turbine Flow Meter Series for Water
For water applications, we offer a specialized portfolio of turbine flow meters. The FLT and VCT series are suited for demanding tasks, with the FLT series specifically designed for high-pressure water applications. In addition, the 800, 900, 1000, and FT2 series provide cost-effective turbine flow meters for standard applications.
excl. 19% VAT plus shipping costs
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
excl. 19% VAT plus shipping costs
excl. 19% VAT plus shipping costs
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
excl. 19% VAT plus shipping costs
excl. 19% VAT plus shipping costs
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
excl. 19% VAT plus shipping costs
excl. 19% VAT plus shipping costs
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 | 406 KB
excl. 19% VAT plus shipping costs
excl. 19% VAT plus shipping costs
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 | 348 KB
excl. 19% VAT plus shipping costs
excl. 19% VAT plus shipping costs
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 | 366 KB
excl. 19% VAT plus shipping costs
Technical Specifications at a Glance
The following technical characteristics provide an overview of the configuration options for our turbine flow meters for water. Exact specifications are model- and application-dependent.
| Specification | FLT (Series) | VCT (Series) | 800 Series | 900 Series | 1000 Series | FT2 Hall | FT2 Optical |
| Measuring Range [L/min] | 0.06 to 1200 | 0.05 to 350 | 0.05 to 15 | 0.05 to 15 | 0.05 to 30 | 0.05 to 160 | 0.02 to 160 |
| Bidirectional Measurement | Possible | Possible | Not possible | Not possible | Not possible | Not possible | Not possible |
| Measurement Accuracy | Repeatability: ± 0.025% | Repeatability: ± 0.025% | Linearity: 1.0 to 2.0% FSD | Linearity: 1.0 to 2.0% FSD | Linearity: 1.0 to 2.0% FSD | Linearity: 1.0 to 2.0% FSD | Linearity: 1.0 to 1.5% FSD |
| Materials | Stainless steel, ceramic | Stainless steel, ceramic | PVDF (PP opt.), Viton, sapphire | PVDF / 316 St St, Viton, sapphire | PVDF / 316 St St, Viton, sapphire | PPS, sapphire, Viton, ceramic | PPS, sapphire, Viton |
| Max. Pressure [bar] | 500 | 25 (max. at 20°C) | 10 | 10 | 10 (opt. 40) | 15 | 15 |
| Pressure Drop (Characteristics) | 0 to approx. 500 mbar | 0 to approx. 500 mbar | 0 to approx. 750 mbar | 0 to approx. 750 mbar | 0 to approx. 750 mbar | 0 to approx. 750 mbar | 0 to approx. 750 mbar |
| Max. Water Temp. [°C] | -40 to +150 (Medium) | -40 to +150 (Medium) | -25 to +125 | -25 to +125 | -25 to +125 | -15 to +125 | -10 to +80 |
| Protection Class | IP67 | IP67 | IP65 | IP65 | IP65 | IP65 | IP65 |
| Connection Types (Thread, Flange, Clamp) | Ermeto (EO) / AN thread | AN thread / Hose barb | 8 mm / 12 mm hose / 3/8″ JG | 1/4″ BSP F / NPT F | 1/2″ BSP F | 8/13 mm hose, 1/4″ to 1″ BSP | 8/13 mm hose, 1/4″ to 1″ BSP |
| Output Signals | TTL (max. 2 kHz) | TTL (max. 2 kHz) | NPN / PNP pulse | NPN / PNP pulse | NPN / PNP pulse | Pulse (Hall effect) | NPN pulse (optical) |
| NSF Approval | – | – | NSF-Approved | – | – | – | – |
Application Possibilities
Our turbine flow meters for water are deployed across a variety of industries and processes. The following examples represent typical areas of application for our sensors.
Turbine Flow Meters for Pure Water Circuits
In pure and ultrapure water circuits, such as those found in the semiconductor industry, medical technology, or laboratories, our turbine flow meters guarantee high-precision monitoring. They ensure that exact volumetric flow rates are maintained, which is critical for process stability and product quality. The FLT and VCT series are particularly suited for these applications. Due to their hybrid bearings with ceramic balls in a stainless steel housing, they possess excellent dry-running properties and enable reliable operation even with media that have low or non-existent lubricating properties. This makes the sensors ideal for pure water and ultrapure water applications, where conventional bearing concepts frequently reach their limits.
Turbine Flow Meters for Process Water Monitoring
When monitoring process water in industrial plants, for example for dosing additives or controlling manufacturing processes, our sensors provide reliable measurement values. Their robust construction ensures a long service life and low-maintenance operation even under demanding conditions.
Turbine Flow Meters for Hydraulic Testing with Water
On hydraulic test benches using water as the testing medium, our flow meters enable the exact measurement and documentation of volumetric flow rates. In particular, our high-pressure FLT series is excellently suited for demanding load and functional testing of hydraulic components.
Turbine Flow Meters for Water Treatment and Distribution
In plants for water treatment, filtration, and distribution, accurate flow measurement is indispensable for controlling processes and ensuring water quality. Our sensors are utilized for monitoring filter backwashing, chemical dosing, and controlling distribution networks.
Turbine Flow Meters for Cooling Systems and Heat Exchangers
In cooling systems and heat exchangers, the correct flow of cooling water is critical for thermal efficiency and protecting equipment from overheating. Our turbine flow meters continuously monitor the volumetric flow rate, thereby contributing to stable and safe operation.
Customized Special Solutions for Turbine Flow Meters
As a specialist in miniaturized flow meters, DDM Sensors develops tailored special solutions designed exactly to your requirements. We implement modifications for specific installation spaces, adjust measuring ranges for your application, and utilize special materials as well as connections. For OEM customers, we act as a development partner to design and manufacture the optimal sensor for your end product.
Consult Our Experts For Personalized Flow Meter Solutions
Contact us for advice on our flow meters and to find a customized solution for your individual requirements.
Get Expert Advice on Turbine Flow Meters for Water Applications Now
Do you have a specific measurement task for water or do you require technical advice on selecting the right turbine flow meter? Contact us for a non-binding consultation. Our experts look forward to supporting you in finding the optimal solution for your application.
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