Hot water circulating pump CPH 25-50F (410W-220V) Application Limits: Suction head up to 7m, liquid temperature up to +100độC, Ambient temperature up to +40 C, Max.Working pressure: 6bar, Voltage fluctuation should not exceed 10% of rated value, pH: 6.5 to 8,5, Mains connection: 220V/50Hz, 380V/50Hz. Advantages & Features: Pump body: Cast iron, electrophoretic treatment o Impeller: Cast iron, electrophoretic treatment Shaft: 304 stainless steel welding shaft e Mechanical seal: Sic/Graphitel FPM rubber e Motor: 2 pole asynchronous motor, copper wires, built-in thermal protector, tully closed fan cooling,continuous running, Protection: IP44, Insulation: B, NSK bearing. Applications Fields 1. Suitable for transferring water without abrasive particles or other liquid whose properties are similar to water. 2. Widely used in HVAC, industrial circulating water system, solar hot water and boiler circulating system living water supply, etc.