What is flowmeter? 

Flowmeter s are the instruments that measure the elements which has the fluidity feature and pass on  a system as gas liquid and steam from volume/amount , volume/time of type mechanically or electronically.

What are the measuring guages of flow-meter? 

lit/sec , lit/min, lit/hour, cubm/sec, cubm/min, cubm/hour , kg/sec, kg/min, kg/hour , ton/sec, ton/min, ton/hour

What are the types of flowmeter?

A.) Electromagnetic flow-meter

It is a measure principle which is applicable for all conductive liquids. it’s almost independent from intensity ,pressure, temperature and viscosity. It can be used even to measure liquids that contain solid particle.(as essence clay, cellulose)  
Dimensions : DN  2….2000

B.) Massive Flowmeter

It is a measuring principle which is applicable to measure liquids and gasses. With it’s multiple flexible sensors it provides massive fluidity, intensity, temperature and viscosity directly at the same time. It is independent from features of the liquid.
Dimensions : DN 1….250

C. )Ultrasonic Flowmeter

Without depending on conductivity it uses to measure the liquids out of the funnel or on the funnel. There is portable type of it. Even the most high pressured liquids are measurable  with it. It is independent from pressure viscosity and conductivity.
Dimensions : DN 15 …4000