flow meters

Dear Valued Clients and Partners, As we stand at the dawn of 2026, all of us at R&B Instrument Inc. extend our warmest wishes for a joyful, prosperous, and innovative New Year. This past year has been a testament to the power of collaboration. We are profoundly grateful for your continued trust in our precision instruments —from our liquid flow meters   to our gas flow instruments   and across our entire portfolio. Your partnership drives us to refine our technologies and push the boundaries of measurement accuracy and reliability every day. Looking ahead, we are filled with excitement and commitment. The new year promises fresh opportunities and challenges. We pledge to continue supporting your critical processes and projects with the same dedication and cutting-edge solutions you rely on. Our team is energized to help you achieve even greater efficiency, safety, and breakthrough performance in 2026. Thank you for being an essential part of our journey. We look forward ...

For industries like wastewater treatment , fine chemicals , and biopharma , precise measurement and control of micro-flows of water , chemicals, or reagents are critical for quality, efficiency, and cost-saving. This high-precision domain was long dominated by a few international brands, offering mature yet costly solutions. Facing this challenge, we have achieved a significant breakthrough. Through dedicated R&D, we have successfully developed a high-performance electromagnetic flowmeter series specifically engineered for low-velocity flow in small pipes. This innovation fills a domestic technology gap and provides a reliable, high-value alternative for precise micro-flow management.   Conquering the Core Challenge of Micro-Flow Measuring micro-flow is not simply about scaling down a standard meter. It presents unique physics and engineering hurdles: extremely weak signals susceptible to noise, stringent demands for zero-point stability , and sensitivity to fluid properties...

In industries like energy and chemicals, selecting skid-mounted equipment for extreme conditions— ultra-low conductivity , low flow , or high pressure —often means choosing between reliable but costly international brands or seeking a better-adapted alternative. The RBHEF series offers a third path: targeted performance, significant cost savings, and flexible customization. Engineered for Core Challenges RBHEF addresses specific pain points with focused innovations: *   Ultra-Low Conductivity: Uses specialized capacitive sensing to accurately measure non-conductive or poorly conductive fluids, overcoming the limits of traditional conductivity-based systems . *   Low Flow Rates: Integrates high-sensitivity sensors and adaptive algorithms to ensure precise measurement and reliable response even at minimal flow rates. *   High-Pressure Durability: Features a reinforced structure , multi-layer sealing , and corrosion-resistant material options for long-...

As global industry advances into cutting-edge frontiers, measurement technology no longer deals solely with clean water or ordinary wastewater. In sectors like chemicals , pharmaceuticals , semiconductors , and lithium-ion battery manufacturing , processes are fraught with highly corrosive, abrasive, ultra-high-pressure, or even near-insulative media. Traditional instruments often fail rapidly under such conditions, leading to costly production halts. This is precisely the stage for high-performance electromagnetic flowmeters (EMFs) engineered for harsh environments, which are rewriting the boundaries of reliable measurement through revolutionary materials and design. The First Line of Defense: Ceramic Liner , the "Diamond-like" Armor Liner failure is a primary cause of measurement breakdown in harsh environments. Ordinary rubber or PTFE liners can quickly wear, erode, or permeate when exposed to high-speed slurries , sharp particles, or hot concentrated acids/alkalis. Our s...

Accurate flow measurement in open channels and partially filled pipes is a critical challenge across industries—from municipal wastewater management to industrial discharge monitoring and agricultural irrigation . Traditional methods often fall short, plagued by sediment interference , varying water levels, and complex installation requirements. Enter the RBDOF-F Fixed Doppler Ultrasonic Flow Meter , a sophisticated solution engineered to transform how you capture, analyze, and act upon hydrological data. Why Doppler Ultrasonic Technology ? Unlike traditional methods that rely on clean water or specific flow conditions, Doppler technology measures flow by detecting frequency shifts in ultrasonic signals reflected off suspended particles or air bubbles in the liquid. This makes it exceptionally robust in real-world conditions where water isn’t perfectly clean—common in drainage, effluent streams, and natural channels. The RBDOF-F leverages this principle to deliver reliable data wh...

Tired of complex, invasive, and costly methods to measure liquid flow or heat energy in your pipes? Traditional in-line meters require cutting pipes, halting production, and incurring significant installation fees. Mechanical meters, on the other hand, cause pressure loss, wear out, and demand constant maintenance. There's a smarter way. Introducing the RBFM-K Compact Clamp-on Ultrasonic Flow and Heat Meter —a revolutionary device designed to deliver accurate, reliable data without ever touching your fluid or interrupting your process.  How It Works: The Elegant Science of Time At the heart of the RBFM-K is the proven Time-of-Flight (ToF) principle . It uses a pair of precision sensors that clamp onto the outside of the pipe. These sensors alternately transmit and receive ultrasonic signals through the pipe wall and the flowing liquid. Here’s the key: sound travels faster when moving *with* the flow and slower when moving *against* it. The meter’s advanced electronics measure this ...