337 Highlandia Drive Baton Rouge, LA 70810 1.800.299.4142 [email protected]


Flow Nozzels


These flow nozzels are available in flanged, weld-in, and holding-ring types using pipe-tap or throat-tap designs for line size up to 24″. Our flow nozzels design are in accordance with ASME and ISO recommendations to ensure a maximum accuracy in flow measurement. Standard materials are carbon steel, chrom-moly, and stainless steel.

A flow nozzle is an engineered primary flow element for non-viscous and erosive fluids under high velocity and pressure, which would wear or damage orifice plates. Flow nozzles are either integrated into pre-assembled meter runs, designed to be mounted in between flanges or welded into the pipe. They require less straight upstream piping and incur lower permanent pressure loss in comparison to orifice plates. There are no sharp edges exposed to wear.

Flow-Lin provides numerous services for our customers including bore calculations, flow-versus-differential curves, temperature/pressure correction curves, cavitation analysis, and laboratory flow calibrations. Our engineering department welcomes the challenge presented by complicated flow problems found in liquids, steam, and gases. We also offer computer software for engineers to run bore calculations for orifice plates, flow nozzles, or venturi tubes (U.S. or S.I. units). The software uses the latest ASME and ISO references to ensure the best calculation accuracy.

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