Quattroflow, a brand of Almatec Maschinenbau GmbH positive displacement quaternary diaphragm pumps, has introduced the 5050 Series Quaternary diaphragm pump to its family of biotech and pharmaceutical pumps. Quattroflow’s positive displacement pumps incorporate a four piston-diaphragm technology with no mechanical seals that is driven by an eccentric shaft and motor. Quattroflow products primarily serve the biotech and pharmaceutical industries that require gentle displacement, reliability, product safety, purity and cleanability. The 5050 pump can be found in multiple or single-use applications within cross-flow systems, chromatography devices and centrifuges. The 5050 pump provides multi-option installation flexibility and a compact design. The unit is drainable and cleanable, and includes multi-directional pump-head connections and positioning. The 5050 pump features a 225mm (8.86 in) chamber diameter and 50 mm (1-1/2 in) flange porting. The 5050 pump has a wide flow range from 50 to 5,000 L/hr (13 to 1,321 gph), with maximum pressure to 6 bar at 20°C (87 psi at 68°F). The complete flow range can be achieved with one drive, no further drive options needed say the company. The pump chamber is available in 316L stainless steel for multiple-use and polypropylene (PP) for single-use applications. The pump’s valves are constructed of EPDM, while the diaphragm is Santoprene (EPDM/PP compound).