
BF00 balanced flow sensor improves on conventional throttling devices with a multi-functional-orifice plate that rectifies the flow field into an almost ideal profile, delivering 5–10× better accuracy than an orifice plate. Suitable for nearly all fluids, bidirectional flow and heavy-duty industrial service.

The orifice plate is the most widely used flow meter in history. BF01 is a standard throttling DP element manufactured and sized to international standards, covering DN15–DN1000+ with pressures up to 64 MPa and temperatures from -185 °C to +850 °C. Simple, reliable, low cost and maintenance-free.

BF05 Venturi tube is a standard throttling DP device developed from the Venturi effect. Its tapered geometry is free from the sharp-edge wear and fouling that plague orifice plates, and actively re-rectifies the velocity profile for high-stability measurement — ideal for dirty media and large lines at high pressure and temperature.

BF10 averaging pitot tube combines a low-pressure-loss DP principle with an insertion style. The aerodynamic water-drop (teardrop) section minimizes drag, multiple tapping ports sense the true average velocity, and total pressure loss is only ~3% of the measured ΔP (vs. 60% for an orifice plate). Built as a one-piece monolithic metal cavity — ideal for large lines and online installation.

BF15 nozzle is a standard throttling DP device with a long, proven history. Its smooth convergent profile offers low straight-run requirements, low permanent pressure loss and strong resistance to fouling, making it a preferred element for steam, gas and high-pressure/temperature service.

BF20 wedge flow sensor fills the long-standing gap in metering city gas and natural gas with sharply varying flow (tens of times over time), and breaks through the measurement of high-viscosity liquids such as tar, asphalt, residual oil, paraffin oil and crystallizing oils, as well as strongly corrosive saturated/oversaturated acid, alkali and salt solutions.

BF20R rectangular flow sensor combines features of the wedge and Venturi meters with clear improvement at the key performance points. No moving parts, wear-resistant and long-term stable accuracy — a solution for high-viscosity and particle-laden media where conventional meters clog or wear out.

BF30 V-Cone is a high-accuracy flow sensor for a wide range of media and service conditions, covering Reynolds numbers from 8×10³ to 5×10⁶. The cone element re-rectifies the velocity profile and creates a stable low-pressure zone immediately downstream, giving short straight-run requirements and a wide turndown.

BF35 bent pipe (elbow) flow sensor generates differential pressure from the centrifugal force of fluid moving through a bend — a standard throttling device with no inserted elements and therefore zero additional pressure loss. Available as 90°, 135° elbow replacements and a 180° straight-line element.