LPA AUTOMATIC HOME BOOSTER PUMP Motor material: copper. Body material: cast iron and aluminum. Amount of speeds: 3. Maximum working pressure,bar: 10. Temperature of heat carrier: from-10ºC to +110ºC Environment temperature: from-10ºC to + 40ºC Electrical network parameters:220V/50 HZ The engine: Single-phase; Class of protection-lP44;-Insulation-H.