First, the characteristics of flow meter
TDF series metal tube rotameter with variable area measurement principle for continuous measurement of volume flow of liquid and gas in the closed pipeline. Is a new generation of metal tube rotameter used in the production of modern high-tech design, with strong structure, wide applicable temperature range, high precision, high cost and other characteristics, especially suitable for low flow and small flow medium measurement. The utility model has the advantages of convenient use and reliable operation, and is widely used in the measurement of liquid and gas flow in the fields of national defense, chemical industry, petroleum, metallurgy, electric power, environmental protection, medicine, light industry, etc..
The measuring tube part of the instrument generally adopts stainless steel 304, 316L, and Teflon liner and other materials, can also according to user requirements making use of other special materials, in order to adapt to the strong corrosive fluids (such as chlorine, salt, hydrochloric acid, sulfuric acid) flow measurement.
This product is the implementation of industry standards JB/T 6844-93, HG20594-97 flange standards, health standards ISO2852-93 clamping chuck.
Two, structural principle
When the fluid flows from bottom to top the measuring tube, the float floating in the dynamic pressure, buoyancy and gravity on, when the three balance, the float can smoothly stop the measuring tube at a location. The position and fluid float in the measuring tube through the corresponding flow measuring tube. The magnetic coupling system, the displacement quantity of the float to the converter indicates the magnitude of the flow by the converter shaft drives the pointer and dial directly display the flow value, simple structure, high reliability, scale special requirements can draw a variety of different media in a block on the dial