Liquid Flow Meters and Switches

What is die casting? Die casting is a specific manufacturing process that produces sharply defined, accurately dimensioned, textured or smooth-surfaced metal parts. It relies on metal casting; a technique that forces molten metal under extremely high pressures into reusable mold cavities (also called metal dies).  Mould cavities are made using two toughened steel dies which are machined into a particular shape. They operate similarly to an injection mould. A majority of die casting are manufactured from various non-ferrous metals such as copper, zinc, aluminum, lead, tin-based alloys and pewter. The type of metal that is casted will determine whether a cold or hot chamber machine is used. The process of die casting is sometimes explained as the nonstop route between a raw material and a finished product. “Die casting” may also describe a finished part. What role do flow meters play in die casting? In die casting, a flow meter may be used in two situations: die cooling and o...

An instrument, which measures the volumetric flow rate of the fluid running through a closed conduit, is called a rotameter. The device consists of a float and a tube. Being a kind of a variable-area meter, it analyzes the flow rate by the upward and downward motion of the float in the tapered tube and the measurement provided by the flow meter is directly proportional to the area of flow and the flow rate. Principle Involved in the Operation of the Rotameter Now the question is how to read a rotameter?   Rotameter is the most accepted industrial flow meter, which works based on the  principle of gravity  and variable area. The flow rate increases and decreases the height of the float, which accordingly adjusts the passage of the fluid flow and consequently, the total area between the float and the wall of the tube. Equilibrium is reached when the upward force created by the flowing fluid balances the descending force exerted by the mass of the float, hence mainta...

Different Kinds of Liquid Flow Meters There are different kinds of liquid flow meters, depending on the circumstances in which the flow meters are used.    1. C losed pipe flow meter: The closed pipe flow meter is a type of flow meter that is used for fluids flowing in a closed conduit like sewer, kitchen pipeline, water pipeline, fuel pipeline, etc. and the open channel includes measuring the flow in a non-constricted area.  2. Differential Pressure Flow Meter : Being the most common flow meter in use, it has primary and secondary component. The first component changes the kinetic energy and the second one measure the differential pressure, which produces a signal that can be changed to get the flow rate.   3. Velocity Flow Meters : This flow meter operates directly with the volume flow rate. It translates the data of the velocity of water into its volume. When the flow meter is used with Reynold’s number greater than 10,000, the flo...

Flow meter is an instrument that is used to gauge the flow of gasses or fluid through a pipe. Flow measurement applications differ extensively on the conditional benchmarks, situational limitations, and engineering requirements.  It is crucial that you choose the right flow meter or a flow switch. Every application needs a different combination of the flow meter and switches depending on various factors listed below. Type of readings required  The type of fluid or gas to be measured Temperature of the fluid or gas Inertness between the flow meter material and the fluid or gas passing through it Viscosity of the fluid or gas Pressure vs. Resistance Before you rush to buy a flow meter, it is very important that you first study the fundamentals of the fluid or gas that flows through the system. The properties of fluid or gas would determine the kind of flow meter that should be installed. The equation between pressure and resistance is closely related to the v...