... 2.sensitivity adjustment,easy installation 3.adjustable valve is optional 4.DN3,4,6,10 Company profile:CHANGZHOU CHENGFENG FLOWMETER CO.,LTD ... request, these valves can also be fitted in the top connection block The mounts are made of stainless steel, brass or PVC ... °CAir,20°C,101325PaTemperature(°C)Pressure(MPa)3LZB-3WLZB-3WB0.4~4ml/min0.6~6ml/min1.6~16ml/min2.5~25ml ...