Hydraulic valves, pumps and actuators face the most stringent testing of any industrial product. Liquid flow measurement is used as a fine tuning process to monitor the machining and assembly of the hydraulic component to achieve the desired flow characteristics. Subsequently, flow measurement is used again during 100% certification of performance over the part’s full range of inputs. Each hydraulic component must pass across a test stand of some kind before it is shipped to the ultimate customer. Inspection through sample testing is not an option for such a high liability product.
Based on a need to test quickly and efficiently, Hydraulic test stand builders are choosing the Max line of positive displacement piston and gear flow meters for their 1000 pulse per revolution output and 0.1% repeatability. This combination of attributes drastically reduces testing cycles. High pulse counts, in as short a time as possible, gives you a data point with more significant figures and statistical validity. The high number of pulses per unit volume quickly satisfies the leak test criteria. Low resolution hydraulic flow meters need to pass 0.1 ml before they create any output. A Max Model 213 will produce a pulse for every 0.001 ml and allow you to measure hydraulic leakage rate in a fraction of the time. Faster testing cycles increases production throughput without adding additional test stands or personnel.
The Max 213 meter, with its 0.9 ml/revolution displacement is the industry standard for leakage testing and zero-crossing measurement.