PILOT OPERATED CHECK VALVES
VALVOLE DI BLOCCO PILOTATE
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67
Pilot Operated Check Valve - Cartridge
Valvola di Blocco Pilotata - Cartuccia
WBS C 30
TECHNICAL DATA
•
•
•
•
•
•
•
Flow:
Max working pressure:
Materials:
Version:
Cavity:
Installation torque:
Pilot ratio:
30 l/min
350 bar
Cartridge in Steel zinc plated
Poppet Type - Pilot Acting
FW3403000
40-45 Nm
3:1
6
3
2
1
40,9
3
2
Es. 22
14,27
3/4 - 16 UNF
15,87
1
p (bar)
PRESSURE DROP CURVES
SPRINGS
40
35
2 ►1
30
25
20
15
Code
Cracking
pressure
bar
1
2,5
5
5
10
10
1 ►2
10
5
0
5
10
15
20
25
30
35 Q - l/min
Ordering code:
WBS
C
30
Opening Pressure:
- Omit if 2,5 bar
- 5 = 5 bar
-10 = 10 bar
68
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Single Pilot Operated Check Valve
Valvola di Blocco Pilotata Singola
WBS
TECHNICAL DATA
•
•
•
•
Materials:
Note:
Cracking pressure:
Version:
Steel Body
The O-Ring on pilot piston in not included
0,5 bar
Poppet Type - Pilot Acting
C
V
P
A
Es.
Ports
C-V
C
V
1/4
3/8
1/2
P
3/4
1
1/4
Dimensions
1/4
3/8
2,5
1/2
2
1
1,5
1
1
0,5
0,5
60
112
122
145
164
Es.
36
40
42
55
55
Pilot Ratio
1:9
1:6
1:4
1:4
1:3
P. Max
350
350
350
300
260
Flow Max
25
40
60
90
130
C►V
1/4
2
3/4
30
103
2,5
1,5
0
A
PRESSURE DROP CURVES
V►C
p (bar)
p (bar)
P
90
120
150 Q - l/min
0
3/8
1
1/2
30
3/4
60
90
120
150 Q - l/min
Ordering code:
WBS
Ports Size:
- 1/4 - 3/8
- 1/2 - 3/4
-1
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Seal on Piston:
- G = Required
- Omit if not required
69
Single Pilot Operated Check Valve - Line
Valvola di Blocco Pilotata Singola - Linea
WBS 30 L
TECHNICAL DATA
• Flow:
(See table)
• Max working pressure: 250 bar (350 bar)
• Materials:
Aluminium Body (Steel body if required)
G
F
N° 2 Holes
V2
C2
C1
V2
V1
I Through
V1
Ports
C1-C2
3/8
=
V1-V2
A
Dimensions
=
H
C2
D
C1
L
E
=
B
=
C
p (bar)
p (bar)
PRESSURE DROP CURVES
V2 ►C2
1/2
16
14
12
8
8
6
6
4
4
2
2
20
A
60
70
B
75
95
35
C
35
D
14
21
E
14
19
38
F
29
G
45
55
H
40
40
I
6.5
8,5
L
11,7
8,5
M. Flow
30
80
Pilot Ratio
7:1
4:1
1/2
SPRINGS
12
10
10
3/8
14
10
0
C2 ►V2
16
3/8
30
40
50
60
70
80 Q - l/min
0
1/2
10
20
30
40
50
60
70
80 Q - l/min
Code
Cracking
pressure bar
1
1,5
5
5
Ordering code:
WBS
30
L
Material Body:
- S = Steel
- Omit if
aluminium
70
Ports Size:
Seal on Piston:
Cracking
- 3/8
- G = Required
Pressure:
- 1/2
- Omit if 1,5 bar - Omit if not
required
- 5 = 5 bar
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Single Pilot Operated Check Valve - Flanged
Valvola di Blocco Pilotata Singola - Flangiata
WBS 30 1F
TECHNICAL DATA
• Flow:
(See table)
• Max working pressure: 250 bar (350 bar)
• Materials:
Aluminium Body (Steel body if required)
E
H
N° 2 Holes
G
ø6
ø8
V1-V2
3/8
1/2
Dimensions
A
C1
=
V2
D
=
B
=
C
p (bar)
p (bar)
PRESSURE DROP CURVES
V2 ►C2
1/2
16
14
10
8
6
6
4
4
2
2
20
A
60
70
B
75
95
C
34
34
D
29
38
E
61
76
F
14
22,5
G
35
40
H
10
15
I
40
40
L
6,5
8,5
M
11,7
8,5
M. Flow
30
80
7:1
4:1
Pilot Ratio
1/2
SPRINGS
12
8
10
3/8
14
10
0
C2 ►V2
16
3/8
12
V1
C1
=
=
I
M
V2
Ports
=
F
C1
L Through
V1
C2
C2
30
40
50
60
70
80 Q - l/min
0
10
20
30
40
50
60
70
80 Q - l/min
Code
Cracking
pressure bar
1
1,5
5
5
Ordering code:
WBS
30
1F
Material Body:
- S = Steel
- Omit if
aluminium
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Ports Size:
Seal on Piston:
Cracking
- 3/8
- G = Required
Pressure:
- 1/2
- Omit if 1,5 bar - Omit if not
required
- 5 = 5 bar
71
Dual Pilot Operated Check Valve - Line
Valvola di Blocco Pilotata Doppia - Linea
WBD 30 L
TECHNICAL DATA
• Flow:
30 l/min
• Max working pressure: 250 bar (350 bar)
• Materials:
Aluminium Body (Steel body if required)
I
B
I
=
=
C1
C1
C2
V1
V2
C2
C1-C2
D
A
Ports
1/4
V1-V2
V1
V2
E
Dimensions
N° 2 Holes
L Through
F
=
C
=
F
H
G
H
PRESSURE DROP CURVES
14
12
1/4
14
3/8
10
8
8
6
6
4
4
2
2
15
30
45
60
75
Q - l/min 0
A
60
60
B
90
100
35
C
30
D
40
40
E
34
32
F
25,5
34
G
60
62
H
12,5
19
I
11,2
11,2
L
8,5
6,5
Pilot
Ratio
4:1
7:1
1/4
12
10
0
V1 ►C1
V2 C2
p (bar)
p (bar)
C1 ►V1
C2 V2
3/8
SPRINGS
3/8
15
30
45
60
75
Q - l/min
Code
Cracking
pressure bar
1
1,5
5
5
Ordering code:
WBD
30
L
Material Body:
- S = Steel
- Omit if
aluminium
72
Ports Size:
Seal on Piston:
Cracking
- 1/4
- G = Required
Pressure:
- 3/8
- Omit if 1,5 bar - Omit if not
required
- 5 = 5 bar
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Dual Pilot Operated Check Valve - Flanged
Valvola di Blocco Pilotata Doppia - Flangiata
WBD 30 2F
TECHNICAL DATA
• Flow:
30 l/min
• Max working pressure: 250 bar (350 bar)
• Materials:
Aluminium Body (Steel body if required)
11,2
100
15
35
C2
V1
V2
11,2
35
V1
C1
15
V2
=
Ports
C2
3/8
Pilot
Ratio
4:1
7:1
N° 6 Holes
6,5 Through
19
SPRINGS
Code
Cracking
pressure bar
1
1,5
5
5
34
32
34
PRESSURE DROP CURVES
1/4
14
3/8
10
8
8
6
6
4
4
2
2
20
3/8
12
10
10
C1 ►V1
C2 V2
p (bar)
p (bar)
V1 ►C1
V2 C2
12
0
1/4
=
62
V1-V2
=
34,5
40
60
=
C1
19
14
ø6
C1-C2
30
40
50
Q - l/min
0
1/4
10
20
30
40
50
Q - l/min
Ordering code:
WBD
30
2F
Material Body:
- S = Steel
- Omit if
aluminium
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Ports Size:
Seal on Piston:
Cracking
- 1/4
- G = Required
Pressure:
- 3/8
- Omit if 1,5 bar - Omit if not
required
- 5 = 5 bar
73
Dual Pilot Check Valve
Valvola di Ritegno Doppia Pilotata
WBD 2OC - VP
TECHNICAL DATA
•
•
•
•
Flow:
Max working pressure:
Materials:
Pilot ratio:
30 l/min
350 bar
Steel Body
4:1
138
C1
C2
V1
V2
68
=
=
V2
Hole
V1 - V2
7 Through
1/4
3/8
13
Es. 22
40
7
V1
Ports
C1
C2
38
15
=
30
=
15
PRESSURE DROP CURVES
C1 ►V1
C2 V2
p (bar)
p (bar)
V1 ►C1
V2 C2
4
6
3
5
2
4
1
3
0
10
20
30
40
Q - l/min
0
10
20
30
40
Q - l/min
Ordering code:
WBD
2OC
VP
Ports Size:
- 1/4
- 3/8
74
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Dual Pilot Check Valve
Valvola di Ritegno Doppia Pilotata
WBD
TECHNICAL DATA
• Max working pressure: 250 bar (350 bar)
• Materials:
Steel Body (Aluminium body if required)
• Pilot ratio:
4:1
D
B
V2
E
C1
C1-C2
V1-V2
1/4
A
40
B
68
1/2
40
50
50
68
80
80
C
30
30
30
30
D
117
117
143
143
E
13
13
16
16
F
7
7
15
15
G
38
38
40
40
H
24
24
27
27
I
7
7
8,5
8,5
P. Max
350
350
300
300
Flow Max
25
30
45
50
=
C
H
=
I Through
PRESSURE DROP CURVES
1/2
6
1/4
5
SPRINGS
3/8
Code
Cracking
pressure
bar
3
05
0,5
2
2
2
5
5
10
10
3/8 VP
4
3/8 VP
3/8VP
C1 ►V1
C2 V2
p (bar)
p (bar)
3/8
1/2
1/4
1
4
0
10
20
30
40
50
Q - l/min
V2
Dimensions
N° 1 Hole
V1 ►C1
V2 C2
V1
3/8
C2
G
C2
Ports
A
F
V1
C1
0
10
20
40
30
50
Q - l/min
Ordering code:
WBD
Material Body:
- A = Aluminium
- Omit if steel
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Ports Size:
- 1/4 - 3/8VP
- 3/8
- 1/2
Cracking
Pressure:
- Omit if 2 bar
- 05 = 0,5 bar
- 5 = 5 bar
- 10 = 10 bar
75