Start-Up; Pre-Commissioning; Filling / Venting; Running Checks - salmson NEX Manuel D'installation Et Mise En Service

at m
 Ch
heck that the pu ump NPSH
R
.
syst tem NPSH
A
Mec chanical requirem ments :
 Lo
ower speed shou uld not fall unde
avo oid any vibrations s and an unstable
currents that ar
The harmonic
motor ball be earings. Standard
55K KW. For higher in nstalled power (s
plat te), the motor should be equ
(spe ecific ball bearing g) or with isolated
bea aring).
8 START‐U P
8.1 1 PRE‐COM MMISSIONI
If the pump i s installed in a p
when dangero ous or polluting f
2) o or requested (zon ne 1) to install add
Che eck following poin nts :
 Pu
ump flow is alway ys higher than au
 Pu
ump never runs d dry,
 No
ormal leakage of the shaft seal is c
 Su
urface temperat ure bearings ho
adm missible surface te emperature in se
 Pr
ressure on discha arge side of the p
allo owable working p ressure.
 Se
et alarm and stop p trips of sensors.
In e every cases check k :
 Qu
uality of electrica al connections,
are installed,
 Pr
rotection devices
 Au
uxiliary piping are e connected,
 Fla
anges connection ns,
 Su
uction line and pu ump casing are fil
 M
otor direction of f rotation is corre
 Co
oupling alignmen t is correct,
 Oi
il level was check ked and greasing
 Co
oupling guard is in nstalled.
8.2 2 FILLING / / VENTING
start‐up, pump c
Befo ore the very first
with h fluid (dependin ng on piping syste
use d).
Pump casing should be per
mechanical sea al runs dry.
Take precautio onary measures w
cold or pollut ing fluids. Wear
nec essary. The oper ator must known
8.3 3 START‐U P
If a barrier flu id, flushing fluid
used, check t hat auxiliary sy
corr rectly before pum mp start‐up.
 C
Close isolating va lve on pump disc
 O
Open all valves in n suction line.

Proceed to pum mp priming (if no
suct tion pipe should be completely fil
 T
Turn the pump o on and check dis
this s pressure to the shutoff pressure
In order to avo oid an important
pump the pum mp should not w
aga inst a closed disc charge valve.
 I
f expected press ure is reached th
valv ve.
If there is no liquid delivered
then see chap ter "trouble shoo
8.4 4 RUNNING G CHECKS
Dur ring operation of pump in
tem mperature, ...) the e following points
inimum speed is s always lower th
er 40% of pump p nominal speed
flow.
re created by the e VSD pass throu
d ball bearings c can be used up
ee engraved pow wer on motor na
ipped with isol ated ball beari
d bearing housin g (and standard b
NG
potentially explo sive atmosphere
luids are pumped d, it is advised (Zo
ditional protectio on devices.
uthorized continu ous minimum flo
controlled,
usings is lower t than the maxim
elected ATEX zone e,
pump is lower th an pump maxim
lled with fluid,
ct,
of ball bearings h has been done,
casing and suctio n line must be fil
em a vacuum pu mp may have to
rfectly vented t to avoid that t
when manipulat ing dangerous, h
ring individual pr rotective devices
n potential Hazar ds.
d, cooling fluid o or a heating fluid
ystems are activ vated and work
charge side.
ot already done) ). Pump casing a
led with fluid.
increase. Comp
scharge pressure
available on the hydraulic curve
overheating of t
the liquid inside t
work more than n 20 to 30 secon
hen progressively open the discha
pressure is too l
or if discharge p
oting".
duty conditions s (capacity, he
s must be checke d :
han
 C
Check and note p
fro om bar indicated
= (P x 10
HM MT
mce bar
 C
d to Check and note c
 C
Check calibration
 C
ugh Check temperatu
 C
p to Check flexible co
ame co oncerned pumps v
 C
ngs Check tightening
 C
ball Check there is no
When pumpi
be done only
sta abilized. See chap
Check the su
e or
pump casing
one
tri ps settings shou
se nsors IOM before
ow,
If an external flus
fo llowing points sh
um
 E
External flushing
Ch heck flushing pres
um
Pr ressure :
Fo or impeller diame
Ot ther impeller diam
Flo ow :
De elivered flow sho
 Q
Quench :
M ax Pressure = 4 b
 H
Heating :
M ax pressure = 4 b
Gl and packing asse
A small leakage
lub brication of the
ac cceptable). If the
lled
de estroyed rapidly.
o be
pa acking is turned o
the
M echanical seal as
Fo or pumps equipp
hot,
sy stem, check tha
s is
sta arting‐up the pum
cool down betw
to
8 .5 SHUTDO
d is
Be efore the pump is
king
Ensure that
seconds.
When the pump h W
va alve. If the pump
he eating system, flu
and
th e last step.
pare
If temperatu
and auxiliary
the
ot herwise protect
nds
pr rotective coating
pu ump.
rge
Pumping exp
low
necessary act
pe eople or environm
Products wh
cleaned. Pum
ead,
pu ump.
15
EN
pump duty point t. If necessary co
on the pressure gauge to mwc :
0) / (SG x 9,806) w with SG= fluid Sp
urrent consumpt tion on each phas
of motor protect ctions.
re of ball bearing gs (on bearing ho
oupling alignmen nt after several p
variants).
of flanges fasten ning bolts.
leakage and no a abnormal runnin
ing hot fluids, the e definitive coupl
y when system n nominal tempera
pter 7.1.4 COUPL LING ALIGNMENT
rface temperatu re on the bearin
. Check pumped d fluid temperat
uld be done acco ording those valu
e adjusting those e trips.
hing, quench or an external hea
:
ould be checked
:
ssure and compa are with following
+
ter 125 : P + 0,5 bar
suction
+ + 0,5 ba
meters : P P
suction differential
uld be between 0 0,1 and 0,2 m
bar
bar with water va por at 140°C
embly :
of packing glan nd is necessary
e packing rings s (20 to 40 dr
ere is not enoug gh leakage then
Check that the e external liquid
on before starting g‐up the pump (if
sembly :
ped with a quen nch, external flu
at the external liquid supply i
mp. In any case t the mechanical s
een two starts.
OWN
s stopped close th he discharge isola
the pump runs in that conditio
has come to a st standstill : close
is equipped with h auxiliary system
ushing, external l ubrication, etc ...
re is likely to dro op below freezin
y connected syste ems should be co
ted. For prolon nged shut‐down
should be appli ied to the inside
plosive, toxic or polluting fluids
tions were taken n to avoid the cre
ment during drain nage operations.
ich are sent bac ck to Salmson m
mped fluid shou ld be completely
NGLISH
onvert pressure v value
pecific Gravity.
se of the motor.
ousing surface).
pump starts (only y for
g noise.
ling alignment sh hould
and
ature is reached
T
g bracket and on n the
ure. Alarm and stop
ues. Refer to spe ecific
ating is installed, , the
g maximum value es :
r
3
/h
y to ensure pr oper
rops per minut te is
packing ring wi ll be
supply of the g gland
f applicable).
ushing, or a hea ating
s turned on be efore
seal should have time
ating valve.
n no more than few
the suction isola ating
ms such as a que ench,
... it must be close ed at
g point, pump ca asing
ompletely draine ed or
ns an adapted rust
e and outside of f the
: make sure tha at all
eation of a hazard d for
must be drained and
y removed from m the