The professional flow limiter is equipped with a reduction valve, which enables removal of gas from the analyzed cylinder at a constant flow, independent of the tank pressure. It enables the sampling of gas even from tanks with very low pressure. It is useful mainly for the analysis of the residual gas before the mixing of a new mixture. The connection hose has to be ordered separately (#8009 Connection hose). Possibility of closing the coming-out Properties: Constant flow 0.2 l/min Connection: G5/8