Part Description - Goulds LNE Serie Manual De Instalación, Funcionamiento Y Mantenimiento

An improper use of the product leads to the loss of
the warranty.
Examples of improper use:
• Liquids not compatible with the pump construc-
tion materials
• Hazardous liquids (such as toxic, explosive, flam-
mable, or corrosive liquids)
• Potable liquids other than water (for example,
wine or milk)
Examples of improper installation:
• Hazardous locations (such as explosive, or cor-
rosive atmospheres).
• Location where the air temperature is very high
or there is poor ventilation.
• Outdoor installations where there is no protection
against rain or freezing temperatures.
DANGER:
Do not use this pump to handle flamma-
ble and/or explosive liquids.
NOTICE:
• Do not use this pump to handle liquids containing
abrasive, solid, or fibrous substances.
• Do not use the pump for flow rates beyond the
specified flow rates on the data plate.
Special applications
Contact the local sales and service representative in
the following cases:
• If the density and/or viscosity value of the pump-
ed liquid exceeds the value of water, such as wa-
ter with glycol; as it may require a more powerful
motor.
• If the pumped liquid is chemically treated (for ex-
ample softened, deionized, demineralized etc.).
• Any situation that is different from the ones that is
described and relate to the nature of the liquid.
3.2 Pump description
See Figure 3 for an explanation of the description
code for the pump and one example.
3.3 Nameplate
The nameplate is a metal label that is located on the
motor adapter. The name plate lists key product
specifications. For more information, see
The nameplate provides information regarding the
impeller and casing material, the mechanical seal
and their materials. For more information, see
5 .
IMQ or other marks (for electric pump only)
Unless otherwise specified, for products with a mark
of electrical-related safety approval, the approval re-
fers exclusively to the electrical pump.
3.4 Design structure
Part Description
Casing • Radial split volute casing
• Suction and discharge flange in one
axis
• Replaceable wear ring
Impeller • Closed radial impeller with wear
rings on both sides
Part
Shaft seal
Bearings
See the sectional drawing
3.5 Material
The metallic parts of the pump that come in contact
with water are made of the following:
Standard/
Optional
Standard
Standard
Standard
Standard
3.6 Mechanical seal
Unbalanced single mechanical seal acc. EN 12756,
version K Dimensions.
3.7 Application limits
Maximum working pressure
This flow chart shows the maximum working pres-
sure depending on the pump model and the temper-
ature of the pumped liquid.
p [bar]
20
15
10
Figure 4
5
Figure
0
-40
P + P
1max
P
1max
P
max
PN
Liquid temperature intervals
Version
Standard
Optional
en - Original instructions
Description
• Single mechanical seal acc. EN
12756
• Radial ball bearings of motor
• Grease lubrication
Figure 6
Material code
CC
CB
CS
CN
CC, CB, CN, CR
-20 0 20 40 60 80
≤ PN
max
Maximum inlet pressure
Maximum pressure generated by the pump
Maximum operating pressure
Gasket Minimum
EPDM -25°C
(-13°F)
FPM (FKM) -20°C
(-4°F)
.
Material cas-
ing/impeller
Cast iron / Cast
iron
Cast iron /
Bronze
Cast iron / Fab-
ricated Stain-
less steel
Cast Iron /
Stainless steel
BQ EGG-WA
U AEGG
1
3
Q Q EGG
1 1
BQ VGG
1
Q Q VGG
1 1
140 160
100 120
t [°C]
Maximum
140°C
1
(284°F)
90°C
1
(194°F)
15