Flowmeters series D by Ateq exploit the precise and clean laminar air flow technology. They can be used in manual or automatic testing stations, with the following technical specifications: D520 represents the most compact, versatile and performing execution, it is ideal for being used in automated lines, installed very close to the measuring point to optimize the test; D535 is instead suitable for flow rate measuring in manual workstations. In the latter case, the pneumatic unit can be installed next to the measuring point, thus improving the testing results (the control terminal can be positioned close to the operator, thus facilitating its management). The flow rate measures ranges from 1 l/h up to 10,000 l/h; in special version even up to 65,000 l/h.