Daniel flow nozzles are differential flow meters that create a flow restriction for high-velocity, non-viscous, erosive flows. The rounded design provides a more effective sweep-through of particles in the flow stream, extending product life by reducing wear and potential damage.
Long radius Daniel flow nozzles are manufactured in strict accordance with ASME MFC-3M specifications, which provide users with +/-2.0% uncertainty of discharge coefficient. For critical measurement applications, flow calibration is recommended, which results in +/-0.25% uncertainty of discharge coefficient. ASME PTC-6 compliant flow nozzles are also available for acceptance testing of power generation plants.
Daniel flow nozzles are erosion-resistant, corrosion-resistant, consistently accurate and virtually maintenance-free. They perform in a wide variety of applications that include air, water, vapor, steam, gas, chemical substances, and high temperature applications. For extremely erosive service, internal surface hardening is available.
Flow nozzles have a smooth elliptical inlet leading to a throat section with a sharp outlet. This restriction in the fluid flow causes a pressure drop, which relates to the flow rate by applying Bernoulli's equation. The smooth inlet of the flow nozzle results in a higher coefficient of discharge than most other differential meters. This higher efficiency means greater flow capacity when compared to most other differential meters of the same size.
