... % 4~20mA,remote control 6~4000mm gas meter,air flow meter,flowmeter:industrial use,all gas, natural gas SBL digital target flow meter is ... pressure flow meter. It was widely used in fields of gas, natural gas, petroleum industry, chemical engineering, energy industry, food industry, ... and maintain.The flow meters are applicable to the following ranges:l Diameter ,Φ15Φ2000mm or bigger.l High and low ...