flow meters

  Electromagnetic flowmeters ( magmeters ) are celebrated across the process industries for their obstructionless design and long-term stability. However, there is a common misconception that a magmeter can simply be bolted anywhere onto a pipeline. In reality, physical sensor placement directly dictates measurement precision. If a meter is subjected to erratic fluid swirling, negative vacuum pressures, or pockets of trapped air, even the most advanced digital signal processor cannot deliver stable metrics. RB Flowmeter, Installation Points, Siting Checklist, Piping Design, Straight Pipe Runs, Flowmeter Maintenance, RBEF Series When configuring your RB Flowmeter RBEF Series , following these rigid installation point criteria is essential to guaranteeing baseline performance. 1. Mastering the Straight Pipe Run (The Velocity Profile ) Magmeters calculate volume by converting fluid velocity into microvolt potentials. For this calculation to hold true, the velocity profile across the ...

In the mineral processing and extractive metallurgy sectors, slurry flow tracking is notorious for being an engineering graveyard. Jagged, high-hardness solid particles suspended in chemical matrices create an ultra-abrasive environment. For standard electromagnetic flowmeters, this results in rapid internal liner erosion, electrode scoring, and catastrophic signal failure. Slurry Flow Meter Case Study | RB Flowmeter A prime example of this industrial bottleneck occurred at a major gold and copper mining and smelting facility in China. The plant was trapped in a costly loop: their inline flowmeters handling dense, abrasive tailings and mineral ore slurries were completely destroyed every 6 months. The frequent shutdowns required to cut pipes and swap out units severely damaged their production consistency and inflated operational expenditure (OPEX). Looking for a long-term solution, their plant engineering team partnered with RB Flowmeter to audit the application. The Engineering Diagn...

RB Flowmeter In process industries like municipal wastewater treatment, chemical blending, and pulp processing, electromagnetic flowmeters ( magmeters ) are trusted for their precision. However, few diagnostics cause more confusion than the " Empty Pipe Alarm ." When this alert trips, the meter typically forces its output to zero to prevent false totalization. But what happens when the pipeline is visibly full, yet the alarm persists? Magmeter Empty Pipe Alarms At RB Flowmeter , we analyze the physical science behind false empty pipe trips and how modern engineering resolves them. Why Does a Full Pipe Trigger an Empty Pipe Alarm? An electromagnetic transmitter detects an empty pipe by monitoring the electrical resistance between its measurement electrodes and the fluid ground. If the circuit is broken, the alarm trips. In a full pipe, this circuit can break due to: Electrode Coating ( Fouling ): Sticky polymers, wastewater sludge, or chemical scales can build up over the ...

or process engineers in Southeast Asian paper mills, maintaining a stable control loop is a constant battle against the physics of the fluid itself. With regional mills heavily utilizing recycled fiber and high-consistency eucalyptus pulp , traditional fluid measurement methods frequently fail. The number one complaint from field engineers regarding pulp loops? Unstable flow meter readings. The RBHEF-LS Slurry-Type Electromagnetic Flowmeter This technical article breaks down why this happens and how Multi-Frequency Excitation Technology —as deployed in the RBHEF-LS Slurry Magmeter —solves it permanently. The Root Cause: Electrochemical Slurry Noise When a paper mill pumps pulp with a mass fraction of 10% to 11%, the fluid behaves less like water and more like an aggressive, semi-solid paste. Within this paste are millions of rigid cellulose fibers and microscopic debris. As these solids flow past the flush-mounted electrodes of an electromagnetic flowmeter , they physically strike and...

 The pulp and paper sector in Southeast Asia is experiencing a massive wave of modernization. However, with rising material costs, regional mills face intense pressure to optimize both CAPEX and operational budgets. One of the most significant cost centers in mill automation has historically been process instrumentation—specifically, high-performance magmeters used in the pulping loops . This technical brief examines a benchmark case study of a 500,000-ton/year recycled fiber pulping project, where 28 units of RBHEF-LS Slurry-Type Electromagnetic Flowmeters successfully replaced a prominent international tier-1 brand in a heavy-duty slurry application. The Engineering Challenge: Recycled Pulp Slurry Noise In the recycled paper pulping process, the fluid consists of dense cellulose fibers, chemicals, and varying micro-debris at temperatures between 70–85°C. When these solids strike the electrodes of a standard flowmeter, they generate random electrochemical voltage spikes, know...

In the pulp and paper industry, recycled fiber (waste paper) pulping is notoriously difficult for industrial instrumentation. Because the slurry contains high fiber consistency, chemical residues, and micro-debris, flowmeters face a brutal environment of high noise and mechanical wear. How can engineers guarantee stable flow data under such conditions? This article looks at a recent benchmark case study—a 500,000-ton/year recycled fiber pulping project at a large paper mill in Zhengzhou —to analyze how the RBHEF-LS Slurry-Type Electromagnetic Flowmeter successfully replaced a prominent international tier-1 brand in critical pulping loops. Pulp And Paper Industry， System Integrators， Electromagnetic Flowmeter 1. Project Background: The 500,000-Ton Harsh Challenge This large-scale paper project requires continuous, high-capacity operation. The recycled pulping loops handle highly viscous, non-Newtonian fluids that generate extreme slurry noise. Originally, the project design called fo...