Serie RNI
The RNI range are Horizontal Centrifugal Pumps with axial suction and support for horizontal shaft bearing, according to Ex DIN 24255 / NF E-44111, and impellers of hydraulic design optimized for high performance. This standardization allows to unify the same part to a large number of pump sizes, thus facilitating the service of spare parts, by reducing the variety of parts. Its design allows the revision of all rotating and internal parts without the need to disconnect the pump body from the suction and discharge piping. It is also not necessary to move the motor if a coupling sleeve with spacer is provided.
- Pump casing with axial suction and tangential drive . In its standard design the suction and discharge flanges dimensioned to PN 10.
- High-strength bearing bracket with oversized bearings, for heavy-duty horizontal shaft, oil-greased
- Closed mixed flow impeller with large pitch and replaceable wear rings.
- The standard design of the seal is by means of a soft packing gland.
- Impulse Ø ranges from DNØ200 to DNØ600
- Maximum consumption 350 hp – 255 kW.
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The range of RN type pumps presented, with flows up to 6000 m3/h (26400 g.p.m.) and 35 m.c.a. (115 Ft.) allows a diversity of uses
- Pumps suitable for lifting and transferring large flows, with fresh or salt water.
- Large irrigation and drainage installations
- Hydraulic works
- Elevation of rivers to canals
- Drinking water supplies
- Sewerage works, sewage disposal.
- Raw water with rising flow screens
- Biological purification of active sludge.
- Pumping of turbid or slightly contaminated liquids.
- Cooling pumps in power stations
- Conventional thermal plants
- Sea water pumping.
- Industry
- Aquaculture farms
- Theme parks
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- Pump body, suction flange, impeller, closing rings, stuffing box, support and support cover, in cast iron GG25
- Stainless steel pump shaft AISI 316
- Standard version with graphite packing.
Optional
- Bronze impeller.
- Special mechanical seals according to liquid or temperature requirements
