... temp.450c 4.Ratio:1:10, 1:30 VRLGY 700 Integration Orifice Flow meter:Applying standard or nonstandard throttle device to ... generate differential pressure signal, the LGY 700 Integration Orifice Flow meter can detect the differential pressure as well ... , gas, steam and etc.Technical parameter :Structure Principle: VRLGY 700 Integration Orifice Flow meter