Pedro   1   the pump casing: cast iron, with the ISO228/1 standard thread interface. 2   the motor rear cover (Patent No.: 1289150): aluminum material, with brass inserts, reduced due to long time no startup problems caused by the blockage of the impeller. 3   the impeller: brass, with runoff whirling blade; 4   the motor shaft: stainless steel EN1 0088-3-1.4104 material; 5   mechanical seal: Ceramic graphite -NBR rubber - 6   motor: pump body and motor PEDROLLO tightly coupled, electric machine, low noise operation, tefc (TEFC), suitable for continuous operation. PQM: single-phase 230V-50HZ. With a capacitor and overload protection device. PQ: three-phase 230/400V-50HZ. 7   insulation: F   protection grade: IP44. 8   optional: stainless steel pump shaft EN1 0088-3-1. 4401 (AISI316)     special mechanical seal, protection level (IP55); other voltage or frequency is 60HZ  

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