Classification of types of metal tube rotameters

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1. Standard type: made of stainless steel, with on-site pointer indication; it is widely used. 2. Remote transmission type: A metal tube rotameter equipped with an LCD display and a 4-20mA signal output, allowing the signal to be sent to another location; it can be used in PCL systems for remote monitoring. 3. Jacketed insulation type: Metal tube float flow meter – when a liquid with a temperature higher than the ambient temperature flows through the instrument, the increased surface area for heat dissipation leads to a drop in temperature, which can cause solidification or crystallization and result in poor performance of the float ； When a significant change in fluid viscosity due to temperature drops affects the measurement values, a jacketed insulated type should be selected. Sometimes, to prevent heat absorption from the outside by the fluid, the jacket is also evacuated to achieve insulation. 4. Explosion-proof type: For electric remote transmission float flow meters with metal tube floats, explosion-proof models should be selected when there are explosive gases or dust present. In China, there are currently two types of designs: flameproof structures and intrinsically safe explosion-proof structures. This explosion protection is also mainly achieved in remote-transmission metal tube rotameters. 5. Corrosion-resistant type: Metal tube float flowmeters can be made from various materials such as 304, 316L, and stainless steel with PTFE lining; corrosion-resistant metal tube float flowmeters feature a design that uses F4 components along with metal parts coated in F40 or F46 plastics.