The Variable-Area Flow Meter Series URM is manufactured by Kobold Instrumentation. The product is made of stainless steel 1.4301 and 1.4404 and it has 4 accuracy class in accordance to VDI. The maximum pressure is 16 bar and the maximum temperature is 100°C and 65°C for PVC. The connections are either G 3/8 male or g 1/4 to G 1/2 female and the measuring range for water ranges from 0.25 to 25000 l/h and for air is 0.0032 to 320 m3n/h. The product can be applied to domestic engineering, cooling circuits, plant engineering, water treatment, heating, machine tools, solar systems, welding machines and etc.