Flowmeters are used to measure the total volume of fluids passing through a pipe or pipeline. They can be mounted vertically or horizontally, and are available in a variety of types, shapes, materials, and applications. They are generally used in applications where the liquid passing through the meter is water or caustic chemicals.
Flow meters are divided into two basic types: gauge and float. Gauge flow meters are used for scenarios with variable pressure, viscosity, or peak flow rates. These flow meters can be saddle mounted or panel mounted. They are also available with a variety of different end connectors, such as Hastelloy alloy, PTFE, or PVC nuts. They are available in a variety of different diameters, including 15mm, 25mm, and 40mm.
Flow meters can also be divided into two types, depending on the type of fluid passing through the flow meter. The first type is a float flowmeter. The float can be made of different materials, such as plastic, bakelite, aluminum, or stainless steel. The materials used for the float vary depending on the viscosity and pressure of the fluid. A float can also be made of agate, agate ball, hard aluminum, or hard rubber. The float is then fixed in a tapered tube. The area of the float is determined by the free area, which is related to the fluid density. The area of the float is also used to calculate the flow rate.
The second type is a metal tube float flowmeter. This flow meter is also used to measure the flow rate of opaque or corrosive fluids. Its structure is similar to a glass tube float flowmeter, except that it has a metal cone tube. The cone tube is engraved with the percentage of flow rate. It also has a pointer mechanism to indicate the flow rate. The flow converter is composed of a damping component, a pointer mechanism, and a four-bar linkage mechanism.
There are also two types of metal tube float flowmeters, including corrosion-resistant and basic types. The basic type is used for the application of a wider range of temperatures and pressures. The corrosion-resistant type is used to measure the flow of medium gas. The indicating part of the metal tube float flowmeter is made of double-sided magnetic steel. The magnetic steel is separated from the guide rod by an isolation tube. This design ensures that the metal tube float flowmeter can be used to measure corrosive fluids without damaging the float.