Internal gear pump Model GP41ER-1U22B - P/N 2676 GP: General Purpose, mono block pump in cast iron 41: Pump size DN 40 - 1 1/2" E: Suction/Discharge connection in-line R: Safety valve, single acting for protection against excess Pressure 1: Casing & cover: GG-25, Rotor/Idler: GG-25, Shaft: St.60.2 U: Idler bearing and main bearing lubricated by pump medium 2: Bearing: Idler bush: Bronze, idler pin: Hardened 16 MnCr5 2: Bearing bush: Bronze, Shaft: St.60.2 B: Teflon-impregnated, non asbestos packing Motor: K21R132S8 SUPPORT: Sup. GP41E