flow meters

Electromagnetic flowmeters (EMFs) measure fluid flow rates using Faraday ’ s Law of Electromagnetic Induction. When conductive fluids flow through a magnetic field generated by the meter, a voltage (EMF) is induced perpendicular to both the flow direction and the magnetic field. This voltage is proportional to the fluid velocity. While EMFs are widely used due to their accuracy and lack of moving parts, external factors like pressure can influence their performance. Below, we explore how pressure impacts EMFs and their measurements.    1. Pressure Effects on Fluid Properties   Pressure changes in a pipeline can alter fluid properties critical to EMF operation:   - Conductivity: EMFs require fluids with sufficient electrical conductivity ( ≥ 5 μ S/cm). While pressure itself does not directly affect conductivity, high-pressure environments may compress dissolved gases or ions, marginally altering conductivity.   - Density and Viscosity: Pressure-induced ...

If you work with industrial piping systems, HVAC/R, or water treatment processes, you ’ ve likely heard about clamp-on ultrasonic flow meters. But what exactly are they, and how do they revolutionize flow measurement? In this article, we ’ ll break down their functionality, benefits, and ideal use cases to help you understand why this technology is a game-changer for non-invasive monitoring.    What Is a Clamp-On Ultrasonic Flow Meter?   A clamp-on ultrasonic flow meter is a portable, non-invasive device designed to measure the flow rate of liquids within pipes without cutting, drilling, or disrupting the system. Unlike traditional inline flow meters, it uses externally mounted sensors that clamp onto the pipe ’ s exterior. These sensors emit ultrasonic waves through the pipe wall to calculate flow velocity and volume based on the time it takes for signals to travel between transducers.     This method eliminates the need for pipe modifications, making it id...

Flow meters are critical instruments in wastewater treatment plants, ensuring precise monitoring and control of liquid and gas flows across various processes. Selecting the right flow meter for specific applications improves efficiency, reduces costs, and ensures regulatory compliance. Below, we break down the most common flow meter types and their key placement points in wastewater treatment systems.    1. Electromagnetic Flow Meters   Key Placement:   - Inlet/outlet pipelines (raw sewage inflow and treated water discharge).   - Sedimentation tanks (monitoring flow into and out of primary/secondary clarifiers).   - Sludge return lines (controlling recycled sludge to bioreactors).   - Chemical dosing systems (measuring coagulants or disinfectants like chlorine).   Pros:  - No moving parts, ideal for abrasive or sludge-filled fluids.   - High accuracy for conductive liquids.     Cons:  - Cannot measu...

Selecting the right flow meter is critical for accuracy, reliability, and cost-effectiveness in chemical dosing systems. Here’s a quick overview of popular types, their pros and cons, and applications:   1. Electromagnetic Flow Meters  - ✔️ Pros:     - Ideal for conductive liquids(e.g., water-based chemicals, acids).     - No pressure loss(no moving parts).     - High accuracy (±0.5%) and corrosion-resistant materials(e.g., PTFE lining).   - ❌ Cons:     - Fails for non-conductive fluids (oils, solvents).     - Requires full-pipe flow and strict installation conditions.   - 📌 Applications: Water treatment, conductive chemical dosing.   2. Coriolis Mass Flow Meters  - ✔️ Pros:     - Direct mass flow measurement(unaffected by temperature/pressure).     - Multi-parameter output (mass flow, density, temperature).     - Exce...

  Electromagnetic flow meters (EMFs) have evolved to overcome historical limitations, making them even more versatile for precision dosing. Recent innovations address small-bore piping, ultra-low flow rates, and low-conductivity fluids – key challenges in chemical skid applications. Here ’ s how modern EMFs are breaking barriers:      Electromagnetic Flow Meters: Cutting-Edge Solutions   - ✔️ Enhanced Capabilities:     - Small-Bore Compatibility: Now supports DN10 (10mm) and smaller pipelines, ideal for compact skids and micro-dosing (e.g., catalyst injection, lab-scale systems).     - Ultra-Low Flow Sensitivity: Measures flows as low as 0.0035 m/s up to 3.5 m/s, enabled by advanced signal processing and high-resolution electrodes. Perfect for trace additive dosing.     - Low-Conductivity Fluids: New designs work with fluids as low as 1 – 5 μ S/cm (e.g., deionized water, solvents like IPA/ethanol) using high-frequency exc...

In industries like chemical processing, water treatment, and pharmaceuticals, accurate chemical dosing is critical for operational efficiency and product quality. While chemical metering dosing skids integrate pumps, valves, and piping, achieving reliable micro-flow control remains a challenge. RB Flowmeter’s RBHEF-CE Ultra_low Flow Electromagnetic Flowmeter rises to the occasion with cutting-edge technology!   🔍 Why RB Flowmeter RBHEF-CE?  1️⃣ Ultra-Low Flow Measurement: Detects flows as low as 1L/h (0.0035m/s~3.5m/s), ideal for precise dosing of chemicals.  2️⃣ Corrosion Resistance: Electrodes made of Hastelloy C, titanium, or tantalum, paired with FEP/PTFE liners, withstand aggressive media like acids, alkalis, and electroplating wastewater.  3️⃣ Versatile Installation: Flange, threaded, or clamp-style sensors adapt to DIN, ISO, 3A, and ASME standards, perfect for hygienic applications requiring frequent cleaning.  4️⃣ Robust Protection: IP68-rated sens...