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Rotameter working principle: A rotameter, also known as a variable-area flowmeter, is a simple and reliable instrument used to measure the flow rate of liquids and gases. It consists mainly of a tapered measuring tube and a float. When fluid enters from the bottom, the upward flow force lifts the float. As the float rises, the available flow area increases until the float reaches an equilibrium position. The float position on the calibrated scale indicates the flow rate. ⚙️ how does a rotameter work? 1️⃣ Fluid enters through the inlet connection. 2️⃣ Upward flow lifts the float. 3️⃣ Higher flow causes the float to rise. 4️⃣ The float settles at an equilibrium position. 5️⃣ The float position is read from the scale to determine flow rate. 🏭 common applications • Chemical processing plants • Water treatment systems • Oil & gas facilities • Pharmaceutical industries • Laboratories • HVAC systems • Food & beverage plants ✅ key advantages ✔ Simple construction ✔ Direct ...