DP-FsE Series pumps are fitted with Advanced Hard Seals and anExternal Pneumatic Logic Optical type sensor control system and aOne Piece PTFE Diaphragm as standard. Their metal free construc-tion, high tolerance to large temperature changes and high reliabilityoptic sensor type control system, make these an excellent choice forUltra high purity chemical process and CMP slurry applications.Together with the CE-124 Pump Driver, this pump has unparalleledstart stop operation control, reliability and extended parts life