What are the disadvantages of horizontal force impulse flowmeters?
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What are the disadvantages of horizontal force impulse flowmeters?
The most typical example is the target flow meter, whose disadvantages are as follows: 1. It has a large dead zone; early domestic versions of these meters might not generate an output signal when the flow rate was below 1/3 of the range, and it’s not clear how much improvement has been made in recent versions. 2. It cannot be used in high-pressure environments. Not produced (imported) for over 600lb. 3. It cannot be used in situations with large pressure fluctuations, as the rod is prone to bending. 4. When first put into use, the valve should be opened slowly; it should not be opened too quickly, as this may cause the stem to bend. The advantage of a target flow meter is that it does not require heating for insulation, and it can be used with viscous and dirty media. But it is not recommended for use.