KSB Etanorm ETN 050-032-200 [6/40] Bearings used
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KSB Etanorm ETN 050-032-200 [6/40] Bearings used

KSB Etanorm ETN 125-100-250 [6/40] Bearings used
Bearings used
Standard bearings
Version Bearing bracket Rolling element bearings
Pump end Drive end Region
Standard bearings
(grease lubrication)
WS_25_LS 6305 2Z C3 6305 2Z C3 A, B, C, D
WS_35_LS 6307 2Z C3 6307 2Z C3 A, B, C, D
WS_55_LS 6311 2Z C3 6311 2Z C3 A, B, C
Standard bearings
(oil lubrication)
WS_25_LS 6305 C3 6305 C3 A, B, C
WS_35_LS 6307 C3 6307 C3 A, B, C
WS_55_LS 6311 C3 6311 C3 A, B, C
Reinforced bearings
(grease lubrication)
WS_50_LR 6310 2Z C3 6310 2Z C3 A, B, C, D
WS_60_LR 6312 2Z C3 6312 2Z C3 A, B, C
Reinforced bearings
(oil lubrication)
WS_50_LR 6310 C3 6310 C3 A, B, C
WS_60_LR 6312 C3 6312 C3 A, B, C
Standard bearing pedestal
(grease lubrication)
WS_25_PS 6305 2Z C3 6305 2Z C3 C
WS_35_PS 6307 2Z C3 6307 2Z C3 C
WS_55_PS 6311 2Z C3 6311 2Z C3 C
Standard bearing pedestal
(oil lubrication)
WS_25_PS 6305 C3 6305 C3 C
WS_35_PS 6307 C3 6307 C3 C
WS_55_PS 6311 C3 6311 C3 C
Lubrication
Type of lubrication Region
Grease lubrication A, B, C, D
Oil lubrication A, B, C
Automation
Automation options:
Automation systems Region
PumpMeter
A, C
4)
, D
4)
PumpDrive
A, C
4)
, D
4)
Coating and preservation
Coating and preservation
Design Region
Coating and preservation to KSB standard A, B, C, D
Product benefits
▪ Improved efficiency and NPSH
req
by experimentally verified
hydraulic design of impellers (vanes)
▪ Low energy costs through compliance with future
requirements of Commission Regulation 547/2012
(minimum efficiency index MEI ≥ 0.4)
▪ Operating costs reduced by trimming the impeller
diameter to match the specified duty point
▪ Little wear, low vibration levels and excellent smooth
running characteristics thanks to good suction
performance and virtually cavitation-free operation across
a wide operating range
▪ Casing sealed reliably – even in varying operating
conditions – by confined casing gasket
▪ Large variety of materials for perfectly matching the pump
to the fluid handled. Large range of materials for many
applications available as standard.
▪ Extended selection chart with additional pump sizes for
small flow rates
▪ Easy to dismantle with forcing screws provided at the
interface of casing cover and bearing bracket lantern
Product information as per Regulation No. 547/2012 (for
water pumps with a maximum shaft power of 150 kW)
implementing "Ecodesign" Directive 2009/125/EC
▪ Minimum efficiency index: see data sheet
▪ The benchmark for the most efficient water pumps is MEI
≥ 0.70.
▪ Year of construction: see data sheet
▪ Manufacturer’s name or trade mark, commercial
registration number and place of manufacture: see data
sheet or order documentation
▪ Product’s type and size identificator: see data sheet
▪ Hydraulic pump efficiency (%) with trimmed impeller: see
data sheet
▪ Pump performance curves, including efficiency
characteristics: see documented characteristic curve
▪ The efficiency of a pump with a trimmed impeller is
usually lower than that of a pump with full impeller
diameter. Trimming of the impeller will adapt the pump
to a fixed duty point, leading to reduced energy
consumption. The minimum efficiency index (MEI) is based
on the full impeller diameter.
▪ Operation of this water pump with variable duty points
may be more efficient and economic when controlled, for
example, by the use of a variable speed drive that matches
the pump duty to the system.
▪ Information relevant for disassembly, recycling or disposal
at end of life: see installation/operating manual
▪ Information on benchmark efficiency or benchmark
efficiency graph for MEI = 0.7 (0.4) for the pump based on
the model shown in the Figure are available at: http://
www.europump.org/efficiencycharts
4)
On request
Centrifugal Pumps with Shaft Seal
Standardised Water Pumps
6
Etanorm

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