Rotameters, also known as float flowmeters, consist of a tapered tube that expands gradually from bottom to top. Inside this tube, a rotor is placed and can move freely along the central axis. These devices measure flow by varying the cross-sectional area, making them highly effective for a wide range of applications. Rotameters are typically available in two main types: glass and metal. In industrial settings, metal rotameters are more commonly used, especially in fields like fire protection, thermoelectrics, and metallurgy. However, for corrosive fluids, glass or even all-titanium materials are preferred, as they offer better resistance and durability.
Rotameters are particularly useful in scenarios where quick flow measurement is required, such as in the petroleum, chemical, and textile industries. The design allows for a simple yet accurate way to monitor fluid flow rates, making them a popular choice in many manufacturing and process control environments.
Nanjing Dasman Machinery Co., Ltd. has developed high-quality rotameters that have performed well in both professional testing and long-term stability assessments. The company carefully studied the working principles of rotameters during the design phase. The basic principle is straightforward: as the fluid flows through the annular gap between the rotor and the conical tube wall, it exits at the top. This movement causes the rotor to rise, and the position of the rotor indicates the flow rate.
Reading a rotameter involves interpreting the instantaneous flow, which can be either volume flow or mass flow. If the device measures mass flow, it must first convert this into volume flow (in m³/s) to determine the actual flow rate. Once converted, the volume flow can be compared with the calibrated scale on the rotameter, allowing users to calculate the exact flow based on the cross-sectional area of the tube. This makes rotameters not only reliable but also user-friendly in various industrial applications.
Hex nuts and screws, bolts and screws are used together to connect and fasten parts. hex nuts are widely used, characterized by large tightening force.
Hex Nut,Hexagonal Nut,Heavy Hex Nut,Hex Flange Nut
Jiangsu Jiajie Special Screw Co., Ltd , https://www.jiajiescrewcompany.com