The English name of flowmeter is flowmeter, which is defined by the national science and technology terminology Approval Committee as an instrument indicating the measured flow and / or the total amount of fluid within the selected time interval.

It can resist the corrosion of hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, sodium hydroxide and potassium hydroxide at room temperature, but it is not resistant to the corrosion of strong oxidants Measure general acid, alkali and salt solutions 1. Excellent elasticity, high breaking force and good wear resistance 2. It is resistant to the corrosion of general low concentration acid-base and salt solution, but not resistant to the corrosion of oxidizing medium