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Rewindable motor Pump with start control box or digital auto-control box Pumps are designed by casing stressed Pump and motor external casina : AISI 304 SS Shaft and shaft coupling : AISI 304 SS Wear ring : AISI 304 SS Delivery casing and suction lantern : Cast-cu ASTM C85500 Top chock : 1 . Cast-cu ASTM C85500 2 .cast-iron ASTM NO.30 Mechanical seal : Special seal for deep well ( graphite-ceramic / TC) Diffuser : Plastic . PC Impeller: Plastic . POM Seal lubricant oil : Oil for food machinery and pharmaceutic use | Maximum fluid temperature up to + 35ºC Maximum sand content : 0.25% 4SD minimum well diameter : 4" |