Motor-Driven Metering Pump Sigma/ 1 (Basic type) Capacity range 17 – 144 l/h, 12 – 4 bar The Sigma/ 1 Basic is an extremely robust motor-driven metering pump with patented multi-layer safety diaphragm for excellent process reliability. It offers a wide range of power end designs, such as three-phase or 1-phase AC motors, also for use in areas at risk from explosion.
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