Flowmeter RVO/U-L4

RVO/U-L4 is a floatmeter (flow switch) for gases with a scale on the sight glass. The instrument is factory calibrated for upward gas flow when mounted vertically. However, a spring-loaded float is provided, allowing the unit to be mounted in any spatial position, including horizontal or vertical with flow in the opposite direction. In this case, on-site calibration may be necessary to compensate for the weight of the float.