LPGFM1 Flow Meter is designed with international advanced standards based on customers requirements. 1. It is using cast iron body,stainless steel cylinder liner,and four-pistoned construction with check valve inlet, high strength,high wearability ,and high accuracy, long service lift . it can be used for gasoline, diesel, kerosene or compound of them. 2. Working Principle: Petroleum flows out of pump flows into flow meter, it causes a angular deviation to the flow meter transmission shaft, and the pulse generating gadget gives out pulse signal to indicate the volume of the liquid. Carton, 32kgs.