▪
Replaceable casing wear rings
▪
Volute casing with integrally cast pump feet
Impeller type
▪
Closed radial impeller with multiply curved vanes
Bearings
▪
Radial ball bearings
▪
Grease lubrication
▪
Optional: oil lubrication
Shaft seal
▪
Shaft equipped with replaceable shaft sleeve/shaft protecting sleeve in the shaft
seal area
▪
Standardised mechanical seal to EN 12756
▪
Gland packing
DANGER
Excessive temperatures in the shaft seal area
Risk of explosion!
▷
Never operate a pump (set) with gland packing in potentially explosive
atmospheres.
4.5
Design and function
Fig. 5: Sectional drawing
1
Clearance gap
2
Discharge nozzle
3
Casing cover
4
Shaft
4 Description of the Pump (Set)
16 of 66
Etanorm