VARISCO V Series - Checking the Sense of Rotation; Mode of Operation of the Pump; Temperature Limits

Va
II
2
Ee
x
TX
2.
9
If t
cir
c
in
c
2.
9
O
p
a
c
2.
9
Un
ca
s
ca
s
te
m
m
u
Te
m
th
e
Th
e
op
e
te
m
riant 2:
2
G:
S
g
x
c:
E
:
I
s
s
p
9
.4 Checki
n
here is a ri
c
umstance
s
c
ase of con
t
9
.5 Mode
o
p
en all gat
e
c
losed sys
t
9
.6 Tempe
r
de
r
normal
s
ing, the m
a
s
ing is equ
i
m
perature
c
u
st have fr
e
A
t
d
m
perature
c
e
oretical lim
e
maximu
m
e
rating con
d
m
perature o
II 2
G
S
urface uni
g
ases or m
i
E
quipment
I
f the pump
s
witch off t
h
s
ite of appli
p
umped m
e
n
g the sen
sk of expl
o
s
by briefly
s
t
act with ro
t
o
f operatio
n
e
valves a
n
t
em!
r
ature limi
t
operating
c
a
gnetic co
u
i
valent to t
h
c
lasses sp
e
e
e contact
w
A
t any rate
,
t
emperatur
e
d
epends o
n
c
lasses ac
c
it values fo
r
m
admissibl
e
d
itions of th
f
40°C.
G
Eex c Tx
t intended
f
i
sts is likel
y
with protec
is used in
a
h
e pump a
u
cation is re
e
dium shou
se of rotat
o
sion durin
g
s
witching o
t
ating or st
a
n
of the pu
n
d shut-of
f
t
s
c
onditions,
u
pling and
a
h
e tempera
e
cified in th
e
w
ith the en
v
,
the owner
e
) is obser
v
n
the releva
c
ording to E
N
r
the pump
e
e
temperatu
e pump. T
h
Tem
p
Tmax.
a
T
4
T
3
T
2
T1
f
or use in a
n
y
to occur in
tion by con
s
a
potentiall
y
u
tomatically
ached. On
ld be at lea
ion
g
the install
n the unfill
e
a
tionary par
t
mp
f
elements
i
expect the
a
ntifriction
b
ture of the
e
Annex a
r
v
ironment.
of the plan
t
v
ed. The m
a
nt tempera
t
N
13463-1
a
e
d medium.
re of the p
u
h
e temperat
p
erature cla
s
a
cc. to EN 1
3
4
– 135°C
3
– 200°C
2
– 300°C
– 450°C
Page10
n
area whe
normal op
e
s
tructional
s
y
explosive
10°C befo
r
the suction
st 10°C bel
ation phas
e
e
d pump in
t
s.
i
n the pipi
n
highest te
m
b
earings. T
h
pumped m
r
e observe
d
t
must ens
u
a
ximum ad
m
t
ure class.
a
re given i
n
u
mped med
ures given
i
s
ses
3
463-1
r
e an explo
e
ration occ
a
s
afety (prE
N
area, the
a
r
e the maxi
m
side of the
ow the tem
p
e
, do not c
order to pr
e
n
g. The p
u
m
peratures
h
e surface
edium. If t
h
d
. In the ar
e
u
re that the
m
issible te
m
n
the table
ium depen
d
i
n the table
Temp
e
Pumped
125°
C
190°
C
290°
C
290°
C
sive atmos
p
a
sionally (
E
N
13463-5)
a
ttached te
m
m
um admi
s
pump the
t
p
erature sp
e
heck the s
e
e
vent any
p
u
mp must
n
to occur at
temperatu
r
h
e pump is
e
a of the b
e
specified fl
m
perature
o
below toge
d
s on the te
below refe
r
e
rature
medium
C
C
C
C
p
here in th
e
E
N 1127-1
S
m
perature
m
s
sible temp
e
t
emperatur
e
e
cified for
s
e
nse of rot
a
p
ossible ris
e
n
ot discha
r
the surfac
e
r
e occurrin
g
heated, en
e
aring fram
uid temper
a
o
f the pump
e
ther with th
e
mperature
c
r
to a maxi
m
e
form of
S
ec. 6.3)
m
onitor will
e
rature for
t
e
of the
s
hutdown.
a
tion unde
r
e
in temper
a
r
ge agains
t
e
o
f
the pu
m
g
on the pu
sure that t
h
e the pum
p
a
ture (oper
a
e
d medium
e
resulting
c
lass and t
h
m
um ambie
n
t
he
r
any
a
ture
t
m
p
mp
h
e
p
a
ting
h
e
n
t