The LFE series LDS for small flows is distinguished by an integrated calming section. The capillary geometry exists of smallest annular and comb matrices, which offer the major advantage, that the differential pressure in the slot-type capillary and therefore the purely laminar pressure drop can be measured in the capillary. This is a major advantage for measurements with different gases!

In this way flow acceleration in the transition from tube diameter to capillary diameter is already terminated in front of the positive differential pressure measuring point. The flow characteristic curve of the element gets more linear and pressure independent as with other LFE constructions.