RN

RN pumps are single-stage centrifugal pumps with closed impeller, suitable for handling clean liquids not containing abrasive particles (up to 0.2% max.) or having corrosive effects on the pump’s materials.

These pumps are suitable for the transfer of non-aggressive industrial liquids in water supply, heating, conditioning, cooling and circulation plants, fire-fighting and irrigation systems, as well as for other civil and industrial applications.

Water pumps
Closed impeller
EN 733

Technical information

Shaft seals
Standard:
• Mechanical seal
In ceramic/carbon /NBR (water max 90°C).
• Gland packing.
On request:
• mechanical seals for higher temperatures and different liquids like hydrocarbons, not aggressive chemical solutions, sodium hydroxide low concentration etc.

Working limits
Max. working temperature 90°C (water) with standard materials.
On demand, are available special seals and gaskets suitable for 130°C in continuous duty.
Design pressure 10 bar.

Standard materials
• Casing and diffusers in cast iron GJL 200 EN 1561.
• AISI 430 shaft
• NBR Gaskets.
• Impellers in cast iron or brass (only for 32-125, 32-160, 32-200, 32L-200, 40-200).

Special materials
• AISI 316 Shaft.
• Viton Gasket.
• Bronze or AISI 316 impellers.

Discharge sizes
From DN 32 to DN 150.

Maximum working pressure
10 bar.

Flow rate
Up to 480 m³/h.

Differential head
Up to 90 m.

Temperature
Up to 130°C according to the pumped liquid.

Flanges
EN 1092-2 PN10.