HYDROTECHNIK Flowmeter 31V7-72-S-35.030
Core Design
• Measurement Principle: Utilizes volumetric displacement technology, measuring fluid volume through the rotation of a turbine rotor. Suitable for mineral oils, HFA/HFC fluids, and non-corrosive media.
• Structural Materials: The housing is made of stainless steel 1.4122/1.4301, and the sealing material is fluororubber. It is resistant to high pressure (withstanding up to 420 bar) and corrosion, making it suitable for harsh industrial environments.
• Compactness and Precision: Compact size (suitable for installation in narrow spaces), with an accuracy of ±0.5%. Supports bidirectional flow measurement and has a wide dynamic response range.
Key Parameters
• Flow Range: Covers fluids with viscosities from 1–270 mm²/s, compatible with low-viscosity hydraulic oils to high-viscosity lubricants.
• Temperature Adaptability: Media temperature ranges from -20°C to +100°C (short-term tolerance up to 120°C), and ambient temperature ranges from -20°C to +85°C.
• Output Signal: Supports frequency signals (0–10 kHz) and 4–20 mA analog signals, with a supply voltage of 12–24 VDC. The electrical interface is a 5-pin M16×0.75 socket.
• Protection Rating: IP40 protection, resistant to dust and light splashing, suitable for workshops and mobile equipment.
Core Advantages and Technological Innovations
Vibration Resistance and Longevity
• Shock-Resistant Design: HYDROTECHNIK's unique sealing technology (derived from 60 years of experience in pressure measurement connectors) ensures stable signals and no leakage in heavy machinery vibration environments, with a significantly longer lifespan than the industry average.
• Calibration Flexibility: Calibrated by default at 30 cSt viscosity, with support for custom calibration parameters to adapt to different operating conditions.
German-Made Quality
• Entire series produced in Germany, adhering to DIN standards and validated under rigorous operating conditions (such as construction machinery and hydraulic test benches), ensuring "zero-defect" delivery.
Typical Application Scenarios
• Hydraulic System Monitoring:
Used for flow control on test benches for hydraulic pumps, motors, and valves, supporting dynamic flow adjustment and leakage detection (e.g., in cement plant hydraulic stations and metallurgical equipment).
• Mobile Equipment Integration:
Installed in the hydraulic circuits of construction machinery (excavators, cranes) to provide real-time flow data feedback to the control terminal in the cab.
• Industrial Process Control:
Suitable for oil quantity metering in lubrication systems, flow monitoring in cooling circuits, and mixing ratio calibration in manufacturing processes.
Installation and Compatibility
• Flexible Installation: Supports installation in any orientation (horizontal/vertical pipelines), with a low-pressure loss design to reduce system energy consumption.
• Supporting Equipment:
Can be connected to HYDROTECHNIK hydraulic multimeters (such as SEG1060) for multi-channel data acquisition or integrated into PLC systems via MKS series cables (such as 8824-S1-05.00S).









