Pump with variable-speed controller 4HS series

waterwith asynchronous motorsubmersible

4HS is a range of 4” electric submersible pumps for well applications, featuring: - Three-phase, water-filled, permanent magnet synchronous motor with encapsulated resin stator, fully constructed of AISI 304 stainless steel. - Built-in integrated inverter controlled by CM control module. - Multistage pump made of AISI 304 stainless steel. An inverter allows 4HS to: - Change pump speed to maintain set-pressure regardless of water demand. Consequently the pump is operated only when and as needed without wasting energy, thereby extending pump life. - Starts and stops pump gently, thus reducing peak absorption, mechanical stress. - Protects pump and drive from overload, undervoltage, surges, dry running and any abnormal conditions. Integrated on-board inverter avoids the use of expensive filters and shielded cables reducing electromagnetic emissions to a minimum. 4HS product range meets the needs of commercial and residential markets for water supply, water pressurisation and irrigation. Compared to conventional solutions, 4HS offers: - Energy-saving operation. - Quick and simplified application. - System reliability. Construction characteristics and use of specific materials allow 4HS to be suitable for drinking water applications.