Bio-Chem and Omnifit introduce its new 130SP Series with PTFE body, PTFE diaphragm pumps and Perfluoroelastomer check valves. The addition of the 130SP Series to the Self-Priming Micro pumps line provides OEM designers with a PTFE and Perfluoroelastomer flow path making it suited to applications where the most inert materials are required. The diaphragm pumps are factory set for outputs ranging from 8µl to 250µl. The pumps can be cycled at up to 2.0 Hz for the smallest version and 1.6Hz for the largest version. Flow rates reach up to 25ml/minute. Depending on the dispense setting, high accuracy can be achieved with deviations from set-point of less than 1%. The standard pump body is made of PPS (polyphenylsulfide). Other materials available for the pump body include PTFE, PEEKT and Delrin®. The elastomers that can be used for the diaphragms and check valves include PTFE, EPDM, Viton® and Perfluoroelastomer.
Some of its other features include: low power consumption / minimal heat generation; low internal volume; positive shut off ; and high cycle life – up to 20 million dispense cycles.