Internal gear pump Model HD81EMR-1U2B2 - P/N 4509
HD: Heavy duty pump, Complete with motor on a common baseplate through flexible coupling
81: Pump size DN 80 - 3 "
E: Suction/Discharge connection in-line
M: Sealing with single mechanical shaft seal combined with a ball bearing as main bearing
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: Idler bush: Bronze, idler pin: Hardened 16 MnCr5
B: Bearing bush: Ball bearing, Shaft: St.60.2
2: Shaft seal: Single mechanical shaft seal Bellow type
