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Pump Catalogue Booklet
1118.5-10 RiothermŽ
Service Water Circulator Pumps
Fields of Application
Hot-water supply systems
Cooling circuits
General industrial systems
Swimming pools
Medium Handled
Clean water and liquids not chemically or mechanically aggressive
to the pump materials.
Operating Data
Q up to 10 m3/h, 2.8 l/s
H up to 6 m
pd up to 10 bar
t -2 up to +110 °C
Designation
Riotherm R 2 2 - 5 E
Type series
Pump casing material
(G = cast iron, R = bronze)
Pipe union Rp 1
3 = Pipe union Rp 1 1/4
2-pole motors
Max. motor rating P2 in watt : 10
Single-phase alternating current
(D = three-phase current)
Design
Dry rotor pump (mechanical seal), screw-union type, with constant
speed.
Shaft Seal
Mechanical seal.
Materials
Volute casing Cast iron or bronze
Discharge cover Chrome nickel steel
Shaft Chrome nickel steel
Impeller Plastic
Bearings
Grease-lubricated deep-groove ball bearings.
Drive
Surface-cooled three-phase squirrel-cage motor 230/400 V or
single-phase a.c. motor, 230 V, IP 44.
