Kobold DON-120H-N4-1-Z3-M0 Oval Gear Wheel Flow Meter

The DON-H is a premium, high-pressure oval wheel flow meter engineered for precision measurement and real-time monitoring of both low and high-viscosity clean liquids. Specifically optimized for heavy industrial applications, this robust positive displacement instrument thrives under extreme physical constraints, offering a maximum pressure rating of 400 bar and temperature limits reaching 120°C. Constructed from premium 1.4404 stainless steel, the body and dual oval geared rotors measure constant, precise volumetric increments per rotation within a machined chamber. Embedded magnets within the rotors track rotational speeds, translating flow metrics into a highly stable pulse or analog signal without requiring alternative straight pipe runs or upstream flow profile conditioning. This makes the DON-H exceptionally well-suited for high-density, high-pressure factory automation frameworks handling fuels, chemicals, oils, and petroleum products.

Key Product Features

• High-Pressure Volumetric Accuracy: Delivers exceptional volumetric monitoring with baseline accuracy between ±0.5% and ±1% of reading, matching repeatabilities down to a tight ±0.03% typical.
• Advanced Electronic Linearization: Integrates an advanced optional Z3 electronic dual totalizer matrix that applies software linearization to boost operating accuracy up to ±0.2% of reading.
• Dual Output Sensor Instrumentation: Standard builds provide both a 2-wire, voltage-free Normally Open SPST Reed Switch and a 3-wire, short-circuit protected Hall Effect Sensor coupled to an active push-pull output.
• High-Viscosity Adaptability: Efficiently tracks fluid media up to 1000 cP as standard, with available special cut alternate-tooth rotors (Option Y/DON-Sxx) designed to slash system pressure drop by 50% for extreme high-viscosity mediums.
• Hazardous Location Certification: Fortified for rigorous plant deployment via a weather-sealed IP 66/67 enclosure and optional ATEX mechanical/intrinsic safety approvals (Ex II 2G Ex ia IIC T4 Gb) for installation in explosive atmospheres.