Turbine flowmeters – highly accurate measurement over a wide measuring range
TrigasDM Turbine Flowmeters are the ideal solution for liquid measurement applications requiring high accuracy, very fast response times and compact design. They provide a perfect reliability in continuous operation, also at constant flow changes and fluctuating operating temperatures. They are not sensitive to vibration, shock and humidity, special versions available in IP67 including also pickoffs and electronic amplifier.

TrigasDM Turbine flowmeter have a wide range of applications. These include f.e. monitoring of flow rates of fuels and coolants in motors and engine development, dosing exact quantities in food and pharmaceutical industry, monitoring and measurement of ultrapure water in research and development, quantity measurement for consumption.

Mobile measurement technology in test vehicles
The special lightweight version of the DM series was developed for applications with small spaces. Due to the extremely compact design of the housing, the flowmeter installed between two hose ends hardly takes up any space. The stainless-steel DM turbine is significantly lighter than a comparable flowmeter and therefore the first choice for mobile measurement technology, whether in the engine compartment or in the hand luggage on the next flight to the test drive.
Typical applications are measurements of flow rates of fuel, cooling water, engine oil, coolant (for example, R134a)…
Together with the compact and powerful linearization Electronics Lysis measurement turbines can be installed up to 15 meters from the data-logger. Whether truck, car or motorcycle, the DM – Series provides real-time temperature compensation, high accuracy, very fast response, compact design and high reliability at an attractive price-performance ratio.
Product Information:
Advantages:
- New rotor design for better linearity and 15% less pressure loss
- Error-free digital pulse output
- Precision ball bearings for better repeatability and optimal results at lower flow rates
- Measuring range 0,05 to 1700 l/min
- Pickoffs with integrated temperature sensors
- Compatible with Cox AN/ANC and Flow Technology FT/NT Series

Technical Data: | |
– Linear Flow Range: | 0,5 l/min to 5 l/min (0.13 GPM to 1.3 GPM) |
– Extended Flow Range: | 0,05 l/min to 5,5 l/min (0.013 GPM to 1.5 GPM) |
– Operating Pressure: | up to 540 bar |
– Pressure Loss (at 70% linear flow): | 0,08 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±2% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 14700 Impulse/l |
– Max. Frequency: | 1350 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 161 g |
– Inner Diameter: | 7,6 mm |
– Length: | 62,2 mm |
– Connection: | AN threaded connection |
– Connection Size: | ½“ |
– Connection Thread: | ¾“ -16UNJF-3A |
– Recommended Prefiltration: | 10µ |
– Recommended Inlet: | 76 mm |
– Recommended Outlet: | 38 mm |

Technical Data: | |
– Linear Flow Range: | 0,95 l/min to 12 l/min (0.25 GPM to 3.2 GPM) |
– Extended Flow Range: | 0,1 l/min to 13 l/min (0.03 GPM to 3.4 GPM) |
– Operating Pressure: | up to 540 bar |
– Pressure Loss (at 70% linear flow): | 0,19 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 8700 Impulse/l |
– Max. Frequency: | 2000 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 161 g |
– Inner Diameter: | 7,6 mm |
– Length: | 62,2 mm |
– Connection: | AN threaded connection |
– Connection Size: | ½“ |
– Connection Thread: | ¾“ -16UNJF-3A |
– Recommended Prefiltration: | 10µ |
– Recommended Inlet: | 76 mm |
– Recommended Outlet: | 38 mm |

Technical Data: | |
– Linear Flow Range: | 1,9 l/min to 20 l/min (0.5 GPM to 5.3 GPM) |
– Extended Flow Range: | 0,2 l/min to 24 l/min (0.05 GPM to 6.3 GPM) |
– Operating Pressure: | up to 450 bar |
– Pressure Loss (at 70% linear flow): | 0,163 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 4860 Impulse/l |
– Max. Frequency: | 2000 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 154 g |
– Inner Diameter: | 9,4 mm |
– Length: | 62,2 mm |
– Connection: | AN threaded connection |
– Connection Size: | ½“ |
– Connection Thread: | ¾“ -16UNJF-3A |
– Recommended Prefiltration: | 10µ |
– Recommended Inlet: | 94 mm |
– Recommended Outlet: | 47 mm |

Technical Data: | |
– Linear Flow Range: | 2,8 l/min to 33 l/min (0.74 GPM to 8.7 GPM) |
– Extended Flow Range: | 0,3 l/min to 38 l/min (0.08 GPM to 10 GPM) |
– Operating Pressure: | up to 410 bar |
– Pressure Loss (at 70% linear flow): | 0,3 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 3700 Impulse/l |
– Max. Frequency: | 2100 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 150 g |
– Inner Diameter: | 10,2 mm |
– Length: | 62,2 mm |
– Connection: | AN threaded connection |
– Connection Size: | ½“ |
– Connection Thread: | ¾“ -16UNJF-3A |
– Recommended Prefiltration: | 10µ |
– Recommended Inlet: | 102 mm |
– Recommended Outlet: | 51 mm |

Technical Data: | |
– Linear Flow Range: | 3 l/min to 40 l/min (0.79 GPM to 10.6 GPM) |
– Extended Flow Range: | 0,4 l/min to 48 l/min (0.11 GPM to 12.7 GPM) |
– Operating Pressure: | up to 410 bar |
– Pressure Loss (at 70% linear flow): | 0,21 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 2400 Impulse/l |
– Max. Frequency: | 2000 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 148 g |
– Inner Diameter: | 11,2 mm |
– Length: | 62,2 mm |
– Connection: | AN threaded connection |
– Connection Size: | ½“ |
– Connection Thread: | ¾“ -16UNJF-3A |
– Recommended Prefiltration: | 10µ |
– Recommended Inlet: | 112 mm |
– Recommended Outlet: | 56 mm |

Technical Data: | |
– Linear Flow Range: | 4,5 l/min to 60 l/min (1.2 GPM to 16 GPM) |
– Extended Flow Range: | 0,6 l/min to 70 l/min (0.16 GPM to 18.5 GPM) |
– Operating Pressure: | up to 410 bar |
– Pressure Loss (at 70% linear flow): | 0,61 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 1700 Impulse/l |
– Max. Frequency: | 2000 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 282 g |
– Inner Diameter: | 12,8 mm |
– Length: | 69,1 mm |
– Connection: | AN threaded connection |
– Connection Size: | ¾“ |
– Connection Thread: | 7/8“ -14UNJF-3A |
– Recommended Prefiltration: | 10µ |
– Recommended Inlet: | 128 mm |
– Recommended Outlet: | 64 mm |

Technical Data: | |
– Linear Flow Range: | 7,6 l/min to 90 l/min (2 GPM to 23.8 GPM) |
– Extended Flow Range: | 0,9 l/min to 95 l/min (0.24 GPM to 25.1 GPM) |
– Operating Pressure: | up to 410 bar |
– Pressure Loss (at 70% linear flow): | 0,64 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 1000 Impulse/l |
– Max. Frequency: | 2000 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 383 g |
– Inner Diameter: | 14,3 mm |
– Length: | 82,6 mm |
– Connection: | AN threaded connection |
– Connection Size: | ¾“ |
– Connection Thread: | 1-1/16“ -12UNJ-3A |
– Recommended Prefiltration: | 10µ |
– Recommended Inlet: | 143 mm |
– Recommended Outlet: | 72 mm |

Technical Data: | |
– Linear Flow Range: | 19 l/min to 220 l/min (5 GPM to 58.1 GPM) |
– Extended Flow Range: | 2,2 l/min to 240 l/min (0.58 GPM to 63.4 GPM) |
– Operating Pressure: | up to 350 bar |
– Pressure Loss (at 70% linear flow): | 0,39 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 450 Impulse/l |
– Max. Frequency: | 1700 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 550 g |
– Inner Diameter: | 21,9 mm |
– Length: | 90,4 mm |
– Connection: | AN threaded connection |
– Connection Size: | 1“ |
– Connection Thread: | 1-5/16“ -12UNJ-3A |
– Recommended Prefiltration: | 20µ |
– Recommended Inlet: | 219 mm |
– Recommended Outlet: | 110 mm |

Technical Data: | |
– Linear Flow Range: | 34 l/min to 400 l/min (9 GPM to 106 GPM) |
– Extended Flow Range: | 3,8 l/min to 490 l/min (1 GPM to 130 GPM) |
– Operating Pressure: | up to 350 bar |
– Pressure Loss (at 70% linear flow): | 0,62 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 240 Impulse/l |
– Max. Frequency: | 1700 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 957 g |
– Inner Diameter: | 25,4 mm |
– Length: | 103 mm |
– Connection: | AN threaded connection |
– Connection Size: | 1 1/4“ |
– Connection Thread: | 1-5/8“ -12UNJ-3A |
– Recommended Prefiltration: | 20µ |
– Recommended Inlet: | 254 mm |
– Recommended Outlet: | 127 mm |

Technical Data: | |
– Linear Flow Range: | 57 l/min to 700 l/min (15.1 GPM to 185 GPM) |
– Extended Flow Range: | 6 l/min to 820 l/min (1.6 GPM to 217 GPM) |
– Operating Pressure: | up to 250 bar |
– Pressure Loss (at 70% linear flow): | 0,86 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 110 Impulse/l |
– Max. Frequency: | 1500 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 1208 g |
– Inner Diameter: | 33,4 mm |
– Length: | 116,6 mm |
– Connection: | AN threaded connection |
– Connection Size: | 1 1/2“ |
– Connection Thread: | 1-7/8“ -12UNJ-3A |
– Recommended Prefiltration: | 50µ |
– Recommended Inlet: | 334 mm |
– Recommended Outlet: | 167 mm |

Technical Data: | |
– Linear Flow Range: | 83 l/min to 1100 l/min (21.9 GPM to 291 GPM) |
– Extended Flow Range: | 10 l/min to 1300 l/min (2.6 GPM to 344 GPM) |
– Operating Pressure: | up to 250 bar |
– Pressure Loss (at 70% linear flow): | 0,34 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 65 Impulse/l |
– Max. Frequency: | 1300 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | 2614 g |
– Inner Diameter: | 44,5 mm |
– Length: | 154 mm |
– Connection: | AN threaded connection |
– Connection Size: | 2“ |
– Connection Thread: | 2-1/2“ -12UNJ-3A |
– Recommended Prefiltration: | 50µ |
– Recommended Inlet: | 445 mm |
– Recommended Outlet: | 222,5 mm |

Technical Data: | |
– Linear Flow Range: | 151 l/min to 1510 l/min (39.9 GPM to 398,9 GPM) |
– Extended Flow Range: | 17 l/min to 1700 l/min (4,5 GPM to 449 GPM) |
– Operating Pressure: | N/A |
– Pressure Loss (at 70% linear flow): | 0,40 bar |
– Temperature Range: | -270°C to 400°C (-454°F to 752°F) |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% of measurement |
– Repeatability: | ≤±0,05% of measurement |
– Linearity in Linear Flow Range: | ≤±0,5% of measurement |
– Linearity with Linearizer: | ≤±0,1% of measurement |
– K-Factor: | 28 Impulse/l |
– Max. Frequency: | 800 Hz |
– Housing and Turbine Material: | Stainless Steel |
– Ball Bearing Material: | Ceramic bearings, Steel cage |
– Weight: | N/A |
– Inner Diameter: | 59,7 mm |
– Length: | 154,5 mm |
– Connection: | HS hose connection |
– Connection Size: | |
– Connection Thread: | |
– Recommended Prefiltration: | 50µ |
– Recommended Inlet: | 598 mm |
– Recommended Outlet: | 299 mm |

Technical Data: | |
– Linear Flow Range: | 250 l/min bis 2500 l/min |
– Extendet Flow Range: | 28 l/min bis 2840 l/min |
– Operating Pressure: | N/A |
– Pressure Loss (at 70% linear flow): | 0,40 bar |
– Temperatur Range: | -270°C bis 400°C |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% vom Messwert |
– Repeatability: | ≤±0,05% vom Messwert |
– Linearity in Linear Flow Range: | ≤±0,5% vom Messwert |
– Linearity with Linearizer: | ≤±0,1% vom Messwert |
– K-Faktor: | 15 Impulse/l |
– Max. Frequency: | 650 Hz |
– Housing and Turbine Material: | Edelstahl |
– Ball Bearing Material: | Keramikkugeln, Edelstahlkäfig |
– Weight | 12,5 kg |
– Inner Diameter: | 73 mm |
– Length: | 254 mm |
– Connection: | Flanschen DIN EN1092-1 / ASME/ANSI B16.5 |
– Connection Size: | auf Anfrage |
– Connection Thread: | – |
– Recommended Prefiltration: | 50µ |
– Recommended Inlet: | 750 mm |
– Recommended Outlet: | 375 mm |

Technical Data: | |
– Linear Flow Range: | 475 l/min bis 4750 l/min |
– Extended Flow Range: | 57 l/min bis 5700 l/min |
– Operating Pressure: | N/A |
– Pressure Loss (at 70% linear flow): | 0,40 bar |
– Temperature Range: | -270°C bis 400°C |
– Response Time: | <3 ms |
– Calibration Accuracy: | ≤±0,03% vom Messwert |
– Repeatability: | ≤±0,05% vom Messwert |
– Linearity in linear Flow Range: | ≤±0,5% vom Messwert |
– Linearity with Linearizer: | ≤±0,1% vom Messwert |
– K-Faktor: | 5,5 Impulse/l |
– Max. Frequency: | 600 Hz |
– Housing and Turbine Material: | Edelstahl |
– Ball Bearing Material: | Keramikkugeln, Edelstahlkäfig |
– Weight | 20 g |
– Inner Diameter: | 98 mm |
– Length: | 305 mm |
– Connection: | Flanschen DIN EN1092-1 / ASME/ANSI B16.5 |
– Connection Size: | auf Anfrage |
– Connection Thread: | – |
– Recommended Prefiltration: | 50µ |
– Recommended Inlet: | 1000 mm |
– Recommended Outlet: | 500 mm |