Description

Wet gas meter is a volumetric, positive- displacement flow meter (drum type) that yields high precision and accuracy for measuring relatively smaller flow of gas and therefore widely used as calibrator for other types of flow meters and as highly accurate flow meters for measuring calories of fuels and precise measuring in the laboratories.

The cylindrical drum that has rotating axle is partitioned into several chambers that are sealed by liquid such as water. The drum rotates and has 'L'-shape inlet tube inside. The housing is filled with liquid (water or oil) by more than half - the center of the drum is the same as that of the housing - and has an inlet tube that sticks out above the water level. If the gas with a higher pressure than that of the outlet enters through the inlet tube, it is guided into chamber I. The pressure of chamber II at this time is the same as that of the outlet, which is exposed above the water level. And then due to the difference of the gas pressure, the drum rotates to the direction of the dotted line (counter-clockwise). The gas is fed into and discharged from chamber I, II, III and IV by turns. If the volume of each chamber is V, then 1 rotation of the drum discharges 4V of gas. Therefore, if the rotation of the drum is counted and accumulated, the volume of the gas can be calculated. Because the gas is replaced by liquid and then refilled as the drum rotates, no gas is leaked, thereby ensuring an accurate measurement of the gas volume.

To ensure the accuracy, the drum capacity is designed and manufactured accurately and the level of water is precisely calculated through a series of tests.  

Features

 - Digital output option
 - Highest accuracy with laboratory precision
 - Compatible with extremely corrosive and inert gases
 - Highly durable construction
 - Measurement of minimal flows
 - Wide measuring range
 - Low maintenance
 - High-precision measuring and calibration
 - Rugged design
 - Easy to use and maintain

As standard, the meters are delivered with 1 year of warranty.