flow meters

In municipal sewage networks , rainwater drainage, and industrial gravity discharge lines, fluid flows naturally without external pressure. As a result, pipes are rarely 100% full.  RBEF-P Series Partially Filled Pipe Magnetic Flow Meter For plant engineers and environmental managers, measuring volumetric flow under these conditions has historically been a major challenge: Standard Magnetic Flow Meters require a completely full pipe (100% liquid volume) to maintain a stable magnetic field and signal. When air is present, standard magmeters generate extreme errors or fail entirely. Open Channel Weirs and Flumes (like Parshall flumes ) require extensive site construction, take up large footprints, and tend to trap solids, sludges, and debris—demanding frequent cleaning. The RBEF-P Series Partially Filled Pipe Magnetic Flow Meter from R&B Instrument Inc . overcomes these limitations by measuring flow velocity and liquid level simultaneously inside an enclosed pipe section. 1. H...

In semiconductor and electronics manufacturing , Ultrapure Water (UPW) is distributed across main feed lines and small-diameter sub-lines inside process tools (e.g., wafer cleaning , post-CMP rinsing , and chemical dilution). UPW is typically piped through high-purity PFA or PTFE tubing . For these lines, flow measurement requires not only precision and chemical compatibility, but also zero alteration to existing piping structures . semiconductor and electronics manufacturing   Clamp-on Ultrasonic flow meter Traditional wetted flowmeters require pre-allocated space, adapters, and complex plumbing. Adding new monitoring points on fully assembled equipment often leads to tedious modification work. The RBCPD Series integrated clamp-on ultrasonic flow sensor from R&B Instrument Inc. offers a simpler, cost-effective, and easy-to-deploy alternative. 1. Non-Wetted Design Preserves Pure Fluid Integrity The RBCPD Series utilizes transit-time ultrasonic measurement . By detecting time ...

In semiconductor wet processing , wafer fabrication, and high-purity chemical delivery, traditional intrusive flowmeters present significant operational risks—including contamination, micro-particle generation, chemical leakage, and pressure loss. RBTGU Series,ultrasonic flow meter, Clamp-On Flowmeter, Semiconductor Manufacturing, Process Automation, To overcome these challenges, R&B Instrument Inc . engineered the RBCS Series Clamp-On Ultrasonic Flow Sensor , utilizing transit-time technology to measure liquid velocity entirely through the pipe wall. However, achieving accurate ultrasonic telemetry requires matching process conditions with physical acoustic boundaries. 1. Pipe Material Compatibility Matrix Transit-time ultrasonic transducers rely on uniform sound wave transmission through the pipe wall and liquid medium: High-Purity Fluoroplastics (Primary Focus): Non-invasive clamp-on measurement excels on PFA, PTFE, PVDF, and Nylon plastic lines. Transducers clamp external...

 In municipal wastewater networks, stormwater collection systems, and industrial discharge conduits, fluid rarely flows under continuous pressure. Instead, gravity drives the liquid through partially filled pipes where fluid depth, velocity, and wetted cross-sectional area fluctuate dynamically. ccurately measure partially filled pipe flows with the RBEF-P Series For instrumentation engineers, measuring non-full pipe flow has historically meant making risky compromises: Flumes & Weirs: Require heavy civil modification, create head loss, and catch debris/sediment. Level-Only Ultrasonic Transducers : Estimate flow based on theoretical pipe geometry curves, which completely fails during backwater conditions or variable line roughness. Standard Full-Pipe Magmeters : Suffer from signal breakdown, severe jump errors, or total diagnostic alarms whenever the fluid level drops below the top electrode. To bridge this operational gap, R&B Instrument Inc . developed the RBEF-P Non-Ful...