Ponar WEH22 Series, Operation Manual

Page: 29 / 32

Type WEH22 WK 460 110 09.2017 - 29 -
O
O O
Operati
perati perati
perating
ng ng
ng lim
lim lim
limits
its its
its
PERFORMANCE CURVES
Fl
Fl Fl
Flo
o o
ow res
w res w res
w resiiiist
st st
sta
aa
ance c
nce c nce c
nce cur
ur ur
urves
ves ves
ves
1 - spool R R R R - flow direction B B B B
→ → → →
A A A A
2 - spools: E EE E , R R R R , W W W W
1 - spool SSSS
2 - spools: FFFF, H
H H H , J J J J , L L L L , M M M M , Q Q Q Q , U U U U , V V V V , W W W W , C C C C , D D D D , K K K K , Z ZZ Z, D1 , D1 , D1 , D1
Performance curves
∆∆∆∆
p p p p (Q Q Q Q ) for directional valves
type ...4
4 4
4W
W W
WE
EE
EH
H H
H2
2 2
22
2 2
2 ... with spools: E
EE
E , R
R R
R , W
W W
W
Performance curves
∆∆∆∆
p p p p (Q Q Q Q ) for directional valves
type ...4 4 4 4W W W WE EE EH H H H2 2 2 22 2 2 2 ... with spools: G G G G , T TT T
Performance curves
∆∆∆∆
p
p p
p (Q
Q Q
Q ) for directional valves
type ...4
4 4 4W W W WE EE EH H H H2 2 2 22 2 2 2
... with spools:
FFFF
,
H H H H
,
JJJJ
,
LLLL
,
M M M M
,
Q Q Q Q
,
S SS S
,
U U U U
,
V V V V
,
W W W W
,
D D D D
,
K K K K
,
Z ZZ Z
,
D D D D1 1 1 1
N N N NO O O OT TT TE : E : E : E :
Above flow limits are relate d to standard application of
4-way directional control valve using two flow directions,
e.g: P
P P
P to A
A A
A and simultaneously B
B B
B to T
TT
T . When 4-way
directional control valve with only one flow direction is
used, e.g. P
P P P
to A
A A A
(B
B B B
plugged) or A
A A A
dt T
TT T
(B
B B B
plugged), then
the actual flow limits are considerably lower.
3
0
∆
P
(
M
P
a
)
0,8
1,6
1,8
0,6
1,4
0,4
1,2
0,2
1,0
P A
→
A T
→
B T
→
P B
→
B A
→
300 250 100 50 400 350 450 200 150
Q (dm / min)
1 2
0
∆
P
(
M
P
a
)
0,8
1,6
1,8
0,6
1,4
0,4
1,2
0,2
1,0
P T
→
P A
→
A T
→
B T
→
P B
→
300 250 100 50 400 350 450 200 150
Q (dm / min)
3
E
EE
E , J
J J
J , L
L L
L , M
M M
M , Q
Q Q
Q , R
R R
R , U
U U
U ,
F, V
F, V F, V
F, V , W
W W
W , C
C C
C , D
D D
D , K
K K
K , Z
ZZ
Z
7
21
35
14 28
450 450 370 320
300
360 250
210 180
G G G G , H H H H , S S S S , T TT T , D1 D1 D1 D1
160
3
2
2 2
2-
- -
- a
aa
and
nd nd
nd 3
3 3
3- p
- p - p
- po
o o
ossssit
it it
itiiiio
o o
on
n n
n , spri
spri spri
spring ce
ng ce ng ce
ng cen
n n
ntered vers
tered vers tered vers
tered vers iiiio
o o
on
n n
nssss
sp sp sp spo o o oo o o ol type l type l type l type
(diagrams see page 8)
press press press pressure ure ure ure p p p p [M M M MP P P Pa aa a ]
fl
fl fl
flo
o o
ow r
w r w r
w rate Q
ate Q ate Q
ate Q [dm
dm dm
dm /mi
mi mi
min
n n
n ]
C)
o
/s and temperature t = 50
2
ν
= 41 mm
(measured at viscosity
0
∆
P
(
M
P
a
)
0,8
1,6
1,8
0,6
1,4
0,4
1,2
0,2
1,0
P T
→
B A
→
300 250 100 50 400 350 450 200 150
Q (dm / min)
1 2
3