Gas Flow Meter (Wet Type)

These Gas Flow Meter (Wet Type) consists of a measuring drum made of stainless steel fitted with a spindle enclosed in a cylindrical, gas tight casing of stainless steel. The measuring drum rotates on a horizontal axis. The instrument is filled with sealing liquid (generally distilled water) up to marked level. The measuring drum is divided into four compartments, and the gas gets filled and discharged as the drum rotates. The gas inlet and outlet connections are made of gas filled nylon and are provided on the back of the meter. A drain plug is provided to drain the liquid. On the right hand side of the meter a water level indicator block is fitted in which an armored thermometer is inserted to indicate the temperature of the gas. Three leveling screws and a spirit level are provided for leveling the meter. The meter is provided with a handle for easy movement. A needle that rotates along with the drum indicates instantaneous flow volume on a dial marked in liters. A mechanized counter is provided for recording number of revolutions, thereby giving cumulative volume of gas flow.
Used to determine the flow rate of gas & generally confirms to requirement under ASTM D 892, ASTM D 1071 & equivalent
Used for highly accurate (0.5%) measurement of volume of gas flow at low pressure (2a to 12a W.G) at low flow rates (up to 27000 ltrs / hr)