Specifications:
The document provides specifications for low pressure diaphragm pumps, specifically the ZETA 70 model. The pumps operate at various RPMs and pressures, with flow rates and power requirements detailed for each condition. The maximum flow rate is 71 l/min (19 GPM) at 20 bar (290 PSI) and 550 RPM.

Performance Data:
The performance data is presented in a table format, showing flow rates in liters per minute (l/min) and gallons per minute (GPM), along with power requirements in horsepower (HP) and kilowatts (kW) at different pressures (0, 5, 10, 15, and 20 bar). The weight of the pumps is also provided in kilograms (Kg) and pounds (lb).

Applications:
The document mentions applications for shaft adaptors and hydraulic motor connections, with references to additional pages for more detailed information.

Additional Information:
The document references pressure control units and provides codes for different versions and applications, indicating a modular approach to pump configuration.