Johnson Pump SPX Flow CombiLineBloc Instruction Manual page 24

22
Table 5: MEI value
Speed
MEI value according prEN16480
[rpm]
Material
125-160 1450
125C-200 1450
125A-250 1450
150-125 1450
150-160 1450
150-200 1450
150-250 1450
200-160 1450
200-200 1450
¹) impeller or pump in bronze
x = not available in delivery program
2 The benchmark for most efficient water pumps is MEI ≥ 0,70.
3 Year of manufacture; the first 2 positions (= the last 2 positions of the year) of the
serial number of the pump as marked on the rating plate. An example and explanation
is given in paragraph 2.7.5 "Product information" of this document.
4 Manufacturer:
SPX Flow Technology Assen B.V.
Registration number at Chamber of Commerce 04 029567
Dr. A.F. Philipsweg 51
9403 AD Assen
The Netherlands
Location Horticulture:
SPX Flow Technology Assen B.V.
Registration number at Chamber of Commerce 04 029567
Johnson Pump Horticulture
De Hondert Margen 23
2678 AC De Lier
The Netherlands
5 Product type and size identifier are marked on the rating plate. An example and
explanation is given in paragraph 2.7.5 "Product information" of this document.
6 The hydraulic pump efficiency of the pump with trimmed impeller diameter is marked
on the rating plate, either the efficiency value [xx.x]% or [-.-]%.
7 Pump curves, including efficiency characteristics, are published in the downloadable
software program "Hydraulic Investigator 2" from the SPXFLOW website. For
downloading "Hydraulic Investigator 2" go to http://www.spxflow.com/en/johnson-
pump/resources/hydraulic-investigator/ The pump curve for the delivered pump is
part of the related customer order documentation package separate from this
document.
8 The efficiency of a pump with a trimmed impeller is usually lower than that of a pump
with the full impeller diameter. The 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.
Cast iron
Bronze
> 0,40 > 0,40
> 0,40 > 0,40
> 0,40 > 0,40
--- ---
> 0,40 > 0,40
> 0,40 x
> 0,40 x
--- ---
> 0,40 x
General
Remarks
1)
Outside scope, ns > 80 rpm
Outside scope, ns > 80 rpm
CLB/EN (1901) 6.6