Needle
valves
WARNING!
Variations and modifications of technical features and dimensions are
reserved.
WALVOIL S.p.A. also reserves the right to stop production of each
and any model listed in the catalogue with no notice.
Copyrights on the text contained herein belong to WALVOIL S.p.A. .
Partial and full reproductions or copies of this catalogue are forbidden.
WALVOIL IS NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY
AN INCORRECT USE OF THE PRODUCT.
D1WWET01E
1st EDITION MAY 2010
DIVISION
NEEDLE VALVES
General Information
Fluid:best use mineral oil with viscosity ranging between 10 and 200 cSt.
Filter:dirty oil is the main reason for failure and troubles of hydraulic parts and systems.
The table below contains OLEOSTAR S.p.A. recommendations about the minimum oil contamination level
according to individual specifications of different items. For further safety of your hydraulic equipment and of
all valves assembled on it, we either recommend use suction filters (rather than return filters) or separated
filter lines.
TYPE OF EQUIPMENT - TYPE OF VALVE
CONTAMINATION LEVEL
According to ISO 4406
- Heavy duty equipment
- Equipment running at 210-350 bar (3050-5100 psi) working pressure
- Equipment using proportional controls
- Equipment with high frequency cycles
-/16/13
- Equipment running up to 210 bar (3050 psi) working pressure
- Spool-type valves
- Valves with calibrated ports
-/18/14
- Equipment running at low working pressure
- Pilot plants and equipment
- Equipment with low frequency cycles
-/19/15
Installation:make sure to provide suitable gasket lubrication with clean oil before screwing the cartridge on
the valve body . Also make sure to screw the cartridge manually in to reach against the gaskets in the valve
body.
Material:internal components made out of high grade steel duly treated and fabricated.
For more information please ask our technical office .
Working temperature:min. -25°C (-13°F) max. 90°C (194°F) with standard BUNA N gaskets
min. -20°C (-4°F) max. 200°C (392°F) with optional VITON gaskets
Rating diagrams:all rating diagrams of this catalogue are measured with mineral oil of 46 cSt viscosity at 40°
(104°F) temperature.
mm
All drawings dimensions are defined as
in
DIVISION
D1WWET01E
NEEDLE VALVES
Index
Hydraulic diagram
Type
Description
VSRB
VSRB/FF/../P. VL
Adjustable, double
acting
Maximum flow up to
Maximum pressure
l/min
US gpm
bar
psi
250
66
450
6500
60
16
350
5100
Page
7
NB..A
Hydraulic diagram
Type
Description
VSRU
Adjustable, variable
reverse flow,single
acting, ball type
VSRU/FF/../P. VL
Hydraulic diagram
Maximum flow up to
Maximum pressure
l/min
US gpm
bar
psi
150
40
450
6500
60
16
350
5100
VSRU/C
Adjustable, variable
reverse flow, single
acting, poppet type
250
66
450
6500
NT..A
Adjustable, variable
reverse flow, single
acting
60
16
350
5100
Type
Description
NU..A
Adjustable, variable
reverse flow, single
acting
D1WWET01E
Maximum flow up to
Maximum pressure
l/min
US gpm
bar
psi
50
13
250
3600
Page
19
Page
33
DIVISION
ACCESSORIES
Index
Adjustments
Optional adjustments..................................................................page 38
Valves bodies
2 Way Bodies.............................................................................page 39
3 Way bodies.............................................................................page 41
4 Way bodies.............................................................................page 43
How to order valves with bodies...................................................page 44
Cavities, tool and tap
2 Way “SAE” Cavity....................................................................page 45
DIVISION
D1WWET01E
D1WWET01E
DIVISION
Type
NEEDLE ADJUSTABLE VALVE
VSRB, ASRB/FF../P. VL and NB..A
Operation
The valve capacity can be adjusted by variation of the oil flow section.
Performance
Body Valves
Max. flow
Type
Max. pressure
Weight
l/min.
US gpm
bar
psi
kg
lb
25
6.6
450
6500
0,30
0,66
40
11
400
5800
0,51
1.12
VSRB 12
60
16
350
5100
0,72
1.59
VSRB 34
100
26
300
4350
1,18
2.60
VSRB 100
150
40
66
3600
4.30
250
250
1,95
VSRB 114
2,95
6.50
VSRB/FF/14./P. VL
25
6.6
0,22
0.48
VSRB/FF/38./P. VL
40
11
350
5100
0,37
0.81
VSRB/FF/12./P. VL
60
16
0,74
1.63
VSRB 14
VSRB 38
VSRB 18
Cartridges
Type
Max. flow
l/min.
US gpm
Max. pressure
bar
psi
Cavities
and tools
Weight
kg
lb
0,18
0.40
NB08A
15
3.9
see cavity
SAE 8-2
page 45
NB10A
30
7.9
see cavity
SAE 10-2
page 45
0,20
0.44
350
5100
NB12A
60
16
see cavity
SAE 12-2
page 45
0,28
0.62
NB16A
100
26
see cavity
SAE 16-2
page 45
0,5
1.10
DIVISION
D1WWET01E
Type
VSRB 14
Needle adjustable valve,
double acting
Ø 1.38
Dimensions and hydraulic circuit
2.44
Rating diagrams
Typical pressure drop vs. flow characteristics
0
1
2
3 4
5
6
7 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRB 14 VUI 38 / 
Pressione di apertura da 1 a 2 (bar)
Pa. 0,5) 0,5
Pa. 5) 5
D1WWET01E
DIVISION
Needle adjustable valve,
double acting
Type
VSRB 38-18-12
General
information
Type
VSRB
38-18-12
Dimensions and hydraulic circuit
Wr.
Wr.
- 0.94
- 2.83
- 1.65
- 2.83
- 1.65
- 0.94
- 3.15
- 1.89
- 1.18
dimensions are in mm-in
Rating diagrams
Typical pressure drop vs. flow characteristics
0
3
6
9
Typical pressure drop vs. flow characteristics
12 (US gpm)
70 (psi)
60
50
40
30
20
10
0
0
3
6
9
12 15 18 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRB 
Port size
38) G 3/8
18) M18x1,5
12) G 1/2
DIVISION
D1WWET01E
Type
VSRB 14
Needle adjustable valve,
double acting
Type VSRB 34-100
Dimensions and hydraulic circuit
Wr.
Wr.
- 3.94
- 2.16
- 1.42
- 4.80
- 2.56
- 1.61
dimensions are in mm-in
Rating diagrams
Typical pressure drop vs. flow characteristics
0
5
10
15
20
Typical pressure drop vs. flow characteristics
25 (US gpm)
35 (psi)
30
25
20
15
10
5
0
0
10
20
30
40 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRB 
Port size
34) G 3/4
100) G 1
10
D1WWET01E
DIVISION
Needle adjustable valve,
double acting
Type
VSRB 38-18-12
General
information
Type
VSRB 114
Ø 3.03
Dimensions and hydraulic circuit
5.67
Rating diagrams
Typical ressure drop vs. flow characteristics
0 10 20 30 40 50 60 70 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRB 114
DIVISION
D1WWET01E
11
Type
VSRB/FF/14./P. VL
Needle adjustable valve,
double acting
Dimensions and hydraulic circuit
Ø 1.09
2.99
A
Ø 0.79
B
2.12
Rating diagrams
Typical pressure drop vs. flow characteristics
0
2
4
6
8
(US gpm)
250 (psi)
200
150
100
50
0
Order code
VSRB /FF /14 /P .VL
12
D1WWET01E
DIVISION
Needle adjustable valve,
double acting
Type
VSRB FF/14./P. VL
General information
Dimensions and hydraulic circuit
Ø 1.26
3.54
A
Ø 0.98
B
2.44
Rating diagrams
Typical pressure drop vs. flow characteristics
0
3
6
9
12 (US gpm)
120 (psi)
90
60
30
0
Order code
VSRB /FF /38 /P .VL
DIVISION
D1WWET01E
13
Type
VSRB/FF/12./P. VL
Needle adjustable valve,
double acting
Dimensions and hydraulic circuit
Ø 1.50
3.94
A
Ø 1.18
B
3.86
Rating diagrams
Typical pressure drop vs. flow characteristics
0
5
10
15
20 (US gpm)
120 (psi)
90
60
30
0
Order code
VSRB /FF /12 /P .VL
14
D1WWET01E
DIVISION
Type
Needle adjustable valve
NB08A
General information
Dimensions and hydraulic circuit
22 lbft
e
u
g
1.09
1.70
o
l
a
3.11
Section
s
e
g
d
t
a
c
Rating diagrams
Typical pressure drop vs. flow characteristics
i
r
t
r
a
c
0
e
e
s
DIVISION
A
S
E
1
2
3
4
5 (US gpm)
500 (psi)
400
300
200
100
0
Order code
NB08A / A - -0 -
Adjustments
(see page 38)
S (screw)
M (copped adjustment)
W (handknob calibrated)
D1WWET01E
Seals
B) Buna
V) Viton
15
Type
NB10A
Needle adjustable valve
Dimensions and hydraulic circuit
36 lbft
e
u
g
o
l
a
1.27
1.78
3.18
t
a
c
Section
s
e
g
d
Rating diagrams
Typical pressure drop vs. flow characteristics
i
r
t
r
a
c
0
e
e
s
Order code
A
S
E
2
4
6
(US gpm)
120 (psi)
90
60
30
0
NB10A / A - -0 -
Adjustments
(see page 38)
S (screw)
M(copped adjustment)
W(handknob calibrated)
16
8
D1WWET01E
Seals
B) Buna
V) Viton
DIVISION
Type
Needle adjustable valve
NB12A
General information
Dimensions and hydraulic circuit
59 lbft
e
u
g
1.80
o
l
a
2.32
3.74
Section
s
e
t
a
c
g
d
Rating diagrams
Typical pressure drop vs. flow characteristics
i
r
t
r
a
c
0
e
e
s
A
S
E
3
6
9
12 15 18 (US gpm)
120 (psi)
90
60
30
0
Order code
NB12A / A - -0 -
Adjustments
(see page 38)
S (screw)
M(copped adjustment)
W(handknob calibrated)
DIVISION
D1WWET01E
Seals
B) Buna
V) Viton
17
Type
NB16A
Needle adjustable valve
Dimensions and hydraulic circuit
73 lbft
e
u
g
2.45
o
l
a
3.10
Section
4.49
s
e
Rating diagrams
g
d
t
a
c
Typical pressure drop vs. flow characteristics
10
0
DP [b ar ]
8
6
4
2
Order code
e
e
s
18
A
S
E
0
0
5
10
15
i
r
t
r
a
c
10
20 30 40
25 (US gpm)
(psi)
120
20
90
60
30
0
50 60 70 80
90 100
Q[l/min ]
NB16A / A - -0 -
Adjustments
(see page 38)
S (screw)
M (copped adjustment)
W(handknob calibrated)
D1WWET01E
Seals
B) Buna
V) Viton
DIVISION
CHECK VALVES WITH VARIABLE
REVERSE FLOW, SINGLE ACTING
Type
VRSU, VRSU/C, VRSU/FF/..P.VL and NT..A
Operation
The oil flow is free from U (A) to E (A1) and capacity is adjusted during reverse flow by
variation of the oil flow section.
For cartridges the ports are 1 and 2. 1 coincides with port E and 2 coincides with
port U.
Performance
Body Valves
Max. flow
Type
Max. pressure
Opening pressure
between
U (A) and E (A1)
Weight
kg
lb
6500
0,31
0.68
400
5800
0,52
1.15
16
350
5100
0,75
2.20
100
26
300
4350
1,18
2.60
150
40
250
3600
1,95
4.30
25
6.6
450
6500
0,32
0.70
40
11
400
5800
0,52
1.15
VSRU/C 12
60
16
350
5100
0,75
2.20
VSRU/C 34
100
26
300
4350
1,19
2.62
VSRU/C 100
150
40
250
3600
1,95
4.30
VSRU/C 114
250
66
250
3600
3,12
6.88
VSRU/FF/14/P.VL
25
6.6
0,27
0.59
VSRU/FF/38/P.VL
40
11
0,45
0.99
VSRU/FF/12/P.VL
60
16
0,74
1.63
l/min
US gpm
bar
psi
25
6.6
450
40
11
VSRU 12
60
VSRU 34
VSRU 100
VSRU/C 14
VSRU 14
VSRU 38
VSRU 18
VSRU/C 38
VSRU/C 18
350
see performance graphs
5100
Cartridges
Tipo
NT08A
Max flow
l/min
15
Opening pressure
from 2 to 1 with closed
regulator
Cavities
and
tools
Weight
kg
lb
3.9
see
cavity
SAE 8-2
page 45
0,24
0.53
see
cavity
SAE 10-2
page 45
0,29
0.64
see
cavity
SAE 12-2
page 45
0,40
0.88
US gpm
NT10A
30
7.9
NT12A
60
16
DIVISION
Max. pressure
bar
350
US gpm
5100
see performance graphs
D1WWET01E
19
Type
VRSU 14
Check valve with variable reverse
flow, single acting, ball type
Ø 1.38
Dimensions and hydraulic circuit
2.44
Rating diagrams
Typical pressure drop vs. flow characteristics
0
1
2
3 4
5
6
7 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRU 14
20
D1WWET01E
DIVISION
Check valve with variable reverse
fllow, single acting, ball type
Type
VSRU 38-18-12
General information
Dimensions and hydraulic circuit
Wr.
Wr.
- 2.83
- 1.65
- 2.83
- 1.65
- 0.94
- 3.15
- 1.89
- 1.18
- 0.94
dimensions are in mm-in
Rating diagrams
Typical pressure drop vs. flow characteristics
0
3
7
6
Typical pressure drop vs. flow characteristics
12 (US gpm)
70 (psi)
60
50
40
30
20
10
9
0
7
3
6
9
12 15 18 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRU 
Port size
38) G 3/8
18) M18x1,5
12) G 1/2
DIVISION
D1WWET01E
21
Type
VRSU 34-100
Check valve with variable reverse
flow, single acting, ball type
Dimensions and hydraulic circuit
Wr.
Wr.
- 3.94
- 2.16
- 1.42
- 4.80
- 2.56
- 1.61
dimensions are in mm-in
Rating diagrams
Typical pressure drop vs. flow characteristics
0
5
10
15
20
25 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Typical pressure drop vs. flow characteristics
0
10
20
30
40 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRU 
Port size
34) G 3/4
100 ) G 1
22
D1WWET01E
DIVISION
Check valve with variable reverse
fllow, single acting, poppet type
Type
VSRU/C 14
General information
Ø 1.38
Dimensions and hydraulic circuit
2.44
Rating diagrams
Typical pressure drop vs. flow characteristics
0
1
2
3 4
5
6
7 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRU/C 14
DIVISION
D1WWET01E
23
Type
VRSU/C 38-18-12
Check valve with variable reverse
flow, single acting, poppet type
Dimensions and hydraulic circuit
Wr.
Wr.
- 2.83
- 1.65
- 0.94
- 2.83
- 1.65
- 0.94
- 3.15
- 1.89
- 1.18
dimensions are in mm-in
Rating diagrams
Typical pressure drop vs. flow characteristics
0
3
6
9
Typical pressure drop vs. flow characteristics
12 (US gpm)
70 (psi)
60
50
40
30
20
10
0
0
3
6
9
12 15 18 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRU /C 
Port size
38) G 3/8
18) M18x1,5
12) G 1/2
24
D1WWET01E
DIVISION
Check valve with variable reverse
fllow, single acting, poppet type
Type
VSRU/C 34-100
General information
Dimensions and hydraulic circuit
Wr.
Wr.
- 3.94
- 2.16
- 1.42
- 4.80
- 2.56
- 1.61
dimensions are in mm-in
Rating diagrams
Typical pressure drop vs. flow characteristics
0
5
10
15
20
Typical pressure drop vs. flow characteristics
25 (US gpm)
35 (psi)
30
25
20
15
10
5
0
0
10
20
30
40 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRU /C 
Port size
34) G 3/4
100) G 1
DIVISION
D1WWET01E
25
Type
VRSU/C 114
Check valve with variable reverse
flow, single acting, poppet type
Ø 3.03
Dimensions and hydraulic circuit
5.67
Rating diagrams
Typical pressure drop vs. flow characteristics
0 10 20 30 40 50 60 70 (US gpm)
35 (psi)
30
25
20
15
10
5
0
Order code
VSRU C/114
26
D1WWET01E
DIVISION
Check valve with variable reverse
fllow, single acting, ball type
Type
VSRU/FF/14/P. VL
General information
Dimensions and hydraulic circuit
Ø 0.79
2.99
Ø 1.09
2.87
Rating diagrams
Typical pressure drop vs. flow characteristics
0
2
4
6
8
(US gpm)
120 (psi)
90
60
30
0
Order code
VSRU /FF /14 /P .VL
DIVISION
D1WWET01E
27
Type
VRSU/FF/38/P. VL
Check valve with variable reverse
flow, single acting, ball type
Dimensions and hydraulic circuit
Ø 0.98
3.54
Ø 1.26
3.23
Rating diagrams
Typical pressure drop vs. flow characteristics
0
3
6
9
12 (US gpm)
120 (psi)
90
60
30
0
Order code
VSRU /FF /38 /P .VL
28
D1WWET01E
DIVISION
Check valve with variable reverse
fllow, single acting, ball type
Type
VSRU/FF/12/P. VL
General information
Dimensions and hydraulic circuit
Ø 1.18
3.94
Ø 1.50
3.86
Rating diagrams
Typical pressure drop vs. flow characteristics
0
5
10
15
20 (US gpm)
120 (psi)
90
60
30
0
Order code
VSRU /FF /12 /P .VL
DIVISION
D1WWET01E
29
Type
NT08A
Check valve with variable
reverse flow, free return line
Dimensions and hydraulic circuit
22 lbft
e
u
g
o
l
a
1.09
3.74
Section
s
e
g
d
Rating diagrams
i
r
t
r
a
c
Typical pressure drop vs. flow characteristics
0
e
e
s
Order code
1
2
A
S
E
3
4
Typical pressure drop vs. flow characteristics
5 (US gpm)
0
1
2
3
4
5 (US gpm)
120 (psi)
120 (psi)
90
90
60
60
30
30
0
0
NT08A / A - - -
Adjustments
Opening pressure check
(see page 38)
valve from 1 to 2
S (screw)
M (copped adjustment)
1) 0,5 bar (7.3 psi)
W (handknob calibrated)
30
t
a
c
D1WWET01E
Seals
B) Buna
V) Viton
DIVISION
Check valve with variable
reverse fllow, free return line
Type
NT10A
General information
Dimensions and hydraulic circuit
36 lbft
e
u
g
1.27
o
l
a
2.57
3.95
Section
s
e
g
d
i
r
t
r
a
c
Typical ressure drop vs. flow characteristics
0
e
e
s
2
A
S
E
4
6
8
Rating diagrams
Typical ressure drop vs. flow characteristics
(US gpm)
70 (psi)
60
50
40
30
20
10
0
0
2
4
6
8
(US gpm)
70 (psi)
60
50
40
30
20
10
0
Order code
NT10A / A - - -
Adjustments
Opening pressure check
(see page 38)
valve from 1 to 2
S (screw)
M (copped adjustment)
1) 0,5 bar (7.3 psi)
W(handknob calibrated)
DIVISION
t
a
c
D1WWET01E
Seals
B) Buna
V) Viton
31
Type
NT12A
Check valve with variable
reverse flow, free return line
Dimensions and hydraulic circuit
59 lbft
e
u
g
1.81
3.14
o
l
a
4.52
Section
s
e
Rating diagrams
Typical pressure drop vs. flow characteristics
0
Order code
e
e
s
32
3
6
A
S
E
g
d
i
r
t
r
a
c
12 15 18 (US gpm)
9
t
a
c
Typical pressure drop vs. flow characteristics
0
3
6
9
12 15 18 (US gpm)
120 (psi)
120 (psi)
90
90
60
60
30
30
0
0
NT12A / A - - -
Adjustments
Opening pressure check
(see page 38)
valve from 1 to 2
S (screw)
M (copped adjustment)
1) 0,5 bar (7.3 psi)
W(handknob calibrated)
D1WWET01E
Seals
B) Buna
V) Viton
DIVISION
CHECK VALVE WITH VARIABLE
REVERSE FLOW, FREE RETURN LINE
Type
NU..A
Operation
The flow is free from 1 to 2 and capacity is adjusted during reverse flow by variation of
the oil flow section.
e
u
g
Performance
o
l
a
Cartridges
Type
Max. flow
Max. pressure
bar
Opening pressure between
1 to 2 with closed regulator
Cavities
and tools
Weight
l/min
US gpm
NU08A
15
3.9
see cavity
SAE 8-2
page 45
0,24
NU10A
30
7.9
see cavity
SAE 10-2
page 45
0,29
0.64
see cavity
SAE 12-2
page 45
0,40
0.88
see cavity
SAE 16-2
page 45
0,55
1.21
350
NU12A
60
16
NU16A
100
26
e
e
s
DIVISION
A
S
psi
5100
s
e
see performance graphs
g
d
E
i
r
t
r
a
c
D1WWET01E
kg
t
a
c
lb
0.53
33
Type
NU08A
Check valve with variable
reverse flow, free return line
Dimensions and hydraulic circuit
22 lbft
e
u
g
o
l
a
1.09
3.74
Section
s
e
g
d
Rating diagrams
i
r
t
r
a
c
Typical pressure drop vs. flow characteristics
0
e
e
s
Order code
1
2
A
S
E
3
4
Typical pressure drop vs. flow characteristics
5 (US gpm)
250 (psi)
0
1
2
3
4
5 (US gpm)
250 (psi)
200
200
100
100
50
50
0
0
NU08A / A - - -
Adjustments
Opening pressure check
(see page 38)
valve from 1 to 2
S (screw)
M (copped adjustment)
1) 0,5 bar (7.3 psi)
W (handknob calibrated)
34
t
a
c
D1WWET01E
Seals
B) Buna
V) Viton
DIVISION
Check valve with variable
reverse fllow, free return line
Type
NU10A
General information
Dimensions and hydraulic circuit
36 lbft
e
u
g
1.27
2.57
o
l
a
3.95
Section
s
e
Typical ressure drop vs. flow characteristics
0
e
e
s
2
4
A
S
6
E
g
d
i
r
t
r
a
c
8
(US gpm)
Rating diagrams
Typical ressure drop vs. flow characteristics
0
2
4
6
8
(US gpm)
120 (psi)
120 (psi)
90
90
60
60
30
30
0
0
Order code
NU10A / A - - -
Adjustments
Opening pressure check
(see page 38)
valve from 1 to 2
S (screw)
M (copped adjustment)
1) 0,5 bar (7.3 psi)
W(handknob calibrated)
DIVISION
t
a
c
D1WWET01E
Seals
B) Buna
V) Viton
35
Type
NU12A
Check valve with variable
reverse flow, free return line
Dimensions and hydraulic circuit
59 lbft
e
u
g
1.81
o
l
a
3.14
4.52
Section
s
e
g
d
Rating diagrams
i
r
t
r
a
c
Typical pressure drop vs. flow characteristics
0
e
e
s
Order code
3
A
S
6
E
9
Typical pressure drop vs. flow characteristics
12 15 18 (US gpm)
400 (psi)
0
3
6
9
12 15 18 (US gpm)
250 (psi)
300
200
200
100
100
50
0
0
NU12A / A - - -
Adjustments
Opening pressure check
(see page 38)
valve from 1 to 2
S (screw)
M (copped adjustment)
1) 0,5 bar (7.3 psi)
W(handknob calibrated)
36
t
a
c
D1WWET01E
Seals
B) Buna
V) Viton
DIVISION
Check valve with variable
reverse fllow, free return line
NU16A
Type
General information
Dimensions and hydraulic circuit
73 lbft
e
u
g
o
l
a
1.78
3.07
4.45
Section
s
e
0
e
e
s
5 10 15 20 25 30 (US gpm)
A
S
E
g
d
i
r
t
r
a
c
Typical pressure drop vs. flow characteristics
Rating diagrams
Typical pressure drop vs. flow characteristics
0
5 10 15 20 25 30 (US gpm)
120 (psi)
120 (psi)
90
90
60
60
30
30
0
0
Order code
NU16A / A - - -
Adjustments
Opening pressure check
(see page 38)
valve from 1 to 2
S (screw)
M(copped adjustment)
1) 0,5 bar (7.3 psi)
W(handknob calibrated)
DIVISION
t
a
c
D1WWET01E
Seals
B) Buna
V) Viton
37
Adjustments
Operation
This chapter show main adjusting devices for the valves listed in this catalog.
These regulations are used to adjust flow rate between inlet and working ports.
Performance
Screw “S”
Handknob calibrated
“M”
1.38
0.87
Ø1.30
0.87
Copped adjustment
“W”
38
D1WWET01E
DIVISION
2, 3 and 4 Valves Bodies
2 WAY BODIES
Dimensions
Material
Max. pressure
bar
psi
Aluminium
210
3050
Steel
350
5100
e
u
g
o
l
a
Cavity
Ports
G 1/2
G 1/4
SAE 8/2
G 3/8
SAE6
G 1/4
G 3/8
G 1/2
SAE 10/2
SAE8
SAE10
e
e
s
SAE12
G 1/2
G 3/4
SAE 12/2
SAE10
SAE12
DIVISION
t
a
c
A
B
C
E
F
G
H
I
L
M
Z
mm
70
65
35
7
56
53
12
14,5
35
35
6,5
2.09
0.47
0.57
1.38
1.38
0.25
44
6
14,8
20
30
6,5
1.73
0.24
0.58
0.79
1.18
0.25
44
6
14,8
20
30
6,5
1.50
1.73
0.24
0.58
0.79
1.18
0.25
38
44
6
14,8
20
30
6,5
1.50
1.73
0.24
0.58
0.79
1.18
0.25
in
2.75
2.56
1.38
0.27
2.20
mm
50
50
30
6
38
in
1.97
1.97
1.18
0.24
mm
50
50
30
6
g
d
s
e
1.50
38
in
1.97
1.97
1.18
0.24
mm
50
50
30
6
in
1.97
1.97
1.18
0.24
mm
60
60
35
6
48
54
6
18,8
25
35
6,5
in
2.36
2.36
1.38
0.24
1.89
2.12
0.24
0.74
0.98
1.38
0.25
i
r
t
r
a
c
mm
60
60
35
6
48
54
6
18,8
25
35
6,5
in
2.36
2.36
1.38
0.24
1.89
2.12
0.24
0.74
0.98
1.38
0.25
mm
60
in
2.36
E
mm
60
in
2.36
A
S
60
35
6
48
54
6
18,8
25
35
6,5
2.36
1.38
0.24
1.89
2.12
0.24
0.74
0.98
1.38
0.25
70
35
6
48
64
6
18,8
25
35
6,5
2.75
1.38
0.24
1.89
2.52
0.24
0.74
0.98
1.38
0.25
mm
70
70
35
6
58
64
6
18,5
35
35
6,5
in
2.75
2.75
1.38
0.24
2.28
2.52
0.24
0.73
1.38
1.38
0.25
mm
70
70
40
8
54
62
8
22
30
40
8.5
in
2.75
2.75
1.57
0.31
2.12
2.44
0.31
0.87
1.18
1.57
0.33
mm
70
80
40
8
54
72
8
25
30
40
8,5
in
2.75
3.15
1.57
0.31
2.12
2.83
0.31
0.98
1.18
1.57
0.33
mm
70
90
40
8
54
82
8
25
30
40
8,5
in
2.75
3.54
1.57
0.31
2.12
3.23
0.31
0.98
1.18
1.57
0.33
mm
70
85
40
8
54
77
8
25
30
40
8,5
in
2.75
3.35
1.57
0.31
2.12
3.03
0.31
0.98
1.18
1.57
0.33
mm
70
85
40
8
54
77
8
25
30
40
8,5
in
2.75
3.35
1.57
0.31
2.12
3.03
0.31
0.98
1.18
1.57
0.33
D1WWET01E
39
2, 3 and 4 Valves Bodies
2 WAY BODIES
Dimensions
Cavity
Ports
G 1/2
G 3/4
SAE 16/2
G1
SAE12
SAE16
A
B
C
E
F
G
H
I
L
M
Z
mm
80
90
50
10
60
80
10
25
35
45
10,5
in
3.15
3.54
1.97
0.39
2.36
3.15
0.39
0.98
1.38
1.77
0.41
mm
80
90
50
10
60
80
10
25
35
45
10,5
in
3.15
3.54
1.97
0.39
2.36
3.15
0.39
0.98
1.38
1.77
0.41
mm
85
100
60
10
65
90
10
23,5
40
in
3.35
3.94
2.36
0.39
2.56
3.54
0.39
0.92
1.57
mm
80
90
50
10
60
80
10
25
35
in
3.15
3.54
1.97
0.39
2.36
3.15
0.39
0.98
1.38
mm
80
100
50
10
60
90
10
25
35
in
3.15
3.94
1.97
0.39
2.36
3.54
0.39
0.98
1.38
Order code
3/CC /-   /20/- -1
Cavity
Cavità
08
08
10
12
10
16
Ports
Attacchi
g
d
B) G 1/4
B) 1/4 BSPP
C)
G 3/8
D)
G 1/2
C) 3/8
BSPP
E) G 3/4
D) 1/2
F)
G 1BSPP
i
r
t
r
a
c
12
16
s
e
o
l
a
e
u
g
45
10,5
1.77
0.41
45
10,5
1.77
0.41
45
10,5
1.77
0.41
t
a
c
Materials
Materiali
1) Aluminium
2) Steel
1) Alluminio
E) 3/4 BSPP
2) Acciaio
F) 1“ BSPP
e
e
s
40
A
S
E
D1WWET01E
DIVISION
2, 3 and 4 Valves Bodies
3 WAY BODIES
Dimensions
Max.
pressure bar
Material
bar
psi
Aluminium
210
3050
Steel
350
5100
Cavity
Ports
G 1/4
G 3/8
SAE 8/3
G 1/2
SAE6
G 1/4
G 3/8
SAE 10/3
G 1/2
SAE6
G 1/2
e
e
s
G 3/4
SAE 12/3
SAE10
SAE12
G 3/4
SAE 16/3
SAE12
SAE16
DIVISION
A
B
C
E
F
G
I
60
60
30
7
46
48
12
14,8
in
2.36
2.36
1.18
0.27
1.81
1.89
0.47
0.58
mm
60
60
30
7
46
in
2.36
2.36
1.18
0.27
1.81
mm
70
65
35
7
56
2.20
in
2.75
2.56
1.38
0.27
mm
60
60
30
7
2.36
1.18
0.27
65
35
6
2.56
1.38
0.24
65
35
6
2.56
1.38
70
35
2.75
70
2.75
in
2.36
mm
60
in
2.36
mm
60
in
2.36
mm
65
in
2.56
mm
65
in
E
mm
in
mm
in
2.56
65
2.56
o
l
a
t
a
c
H
mm
A
S
SAE8
e
u
g
L
M
N
Z
30
30
29,1
6,5
1.18
1.18
1.14
0.25
48
12
14,5
30
30
29,1
6,5
1.89
0.47
0.57
1.18
1.18
1.14
0.25
53
12
14,5
35
35
29,1
6,5
g
d
2.09
0.47
0.57
1.38
1.38
1.14
0.25
48
12
14,5
30
30
29,1
6,5
46
1.89
0.47
0.57
1.18
1.18
1.14
0.25
48
59
6
18
30
30
34,5
7
1.89
2.32
0.24
0.70
1.18
1.18
1.36
0.27
48
59
6
18,8
30
30
34,5
7
0.24
1.89
2.32
0.24
0.74
1.18
1.18
1.36
0.27
6
53
64
6
18,8
32,5
32,5
34,5
7
1.38
0.24
2.09
2.52
0.24
0.74
1.28
1.28
1.36
0.27
35
6
53
64
6
18,8
32,5
32,5
34,5
7
1.38
0.24
2.09
2.52
0.24
0.74
1.28
1.28
1.36
0.27
i
r
t
r
a
c
1.81
s
e
70
35
6
53
64
6
18,8
32,5
32,5
34,5
7
2.75
1.38
0.24
2.09
2.52
0.24
0.74
1.28
1.28
1.36
0.27
70
100
40
8
54
92
8
25
35
35
53,5
8,5
2.75
3.94
1.57
0.31
2.12
3.6
0.31
0.98
1.38
1.38
2.10
0.33
mm
90
100
50
10
70
90
10
25,1
45
45
53,5
10,5
in
3.54
3.94
1.97
0.39
2.75
3.54
0.39
0.99
1.77
1.77
2.11
0.41
mm
80
100
40
8
64
92
8
25
40
40
53,5
8,5
in
3.15
3.94
1.57
0.31
2.52
3.6
0.31
0.98
1.57
1.57
2.11
0.33
mm
80
100
45
8
64
92
8
25
40
40
53,5
8,5
in
3.15
3.94
1.57
0.31
2.52
3.6
0.31
0.98
1.57
1.57
2.11
0.33
mm
90
100
50
10
70
90
10
25,1
45
45
53,5
10,5
in
3.54
3.94
1.97
0.39
2.75
3.54
0.39
0.99
1.77
1.77
2.11
0.41
mm
90
105
50
10
70
95
10
25,1
45
45
53,5
10,5
in
3.54
4.13
1.97
0.39
2.75
3.74
0.39
0.99
1.77
1.77
2.11
0.41
mm
90
105
50
10
70
95
10
25,1
45
45
53,5
10,5
in
3.54
4.13
1.97
0.39
2.75
3.74
0.39
0.99
1.77
1.77
2.11
0.41
D1WWET01E
41
2, 3 and 4 Valves Bodies
3 WAY BODIES
Order code
3/CC /-   /30/- -1
Cavity
Cavità
Ports
Attacchi
08
08
10
12
10
16
B) G 1/4
B) 1/4 BSPP
C) G 3/8
D)
G 1/2
C) 3/8
BSPP
E) G 3/4
16
E) 3/4 BSPP
12
Materials
Materiali
D) 1/2 BSPP
1) Aluminium
2) Steel
1) Alluminio
2) Acciaio
e
u
g
o
l
a
s
e
t
a
c
g
d
e
e
s
42
A
S
E
i
r
t
r
a
c
D1WWET01E
DIVISION
2, 3 and 4 Valves Bodies
4 WAY BODIES
General information
Dimensions
Material
Max pressure
bar
psi
Aluminium
210
3050
Steel
350
5100
e
u
g
o
l
a
Cavity
Ports
G 1/4
SAE 8/4
SAE6
G 3/8
G 1/2
SAE 10/4
SAE6
SAE8
G 1/2
SAE 12/4
SAE10
e
e
s
SAE 16/4
G 3/4
A
B
C
E
F
G
mm
60
75
30
7
46
63
in
2.36
2.95
1.18
0.27
1.81
2.48
mm
60
75
30
7
46
63
H
I
L
M
N
O
P
Z
12
29,1
30
30
14,8
29,1
31,1
6,5
0.47
1.14
1.18
1.18
0.58
1.14
1.22
0.25
12
29,1
30
30
14,8
29,1
31,1
6,5
in
2.36
2.95
1.18
0.27
1.81
2.48
0.47
1.14
1.18
1.18
0.58
1.14
1.22
0.25
mm
60
85
35
6
48
79
6
34,5
30
30
18,8
31,7
34,5
7
i
r
t
r
a
c
in
2.36
3.35
1.38
0.24
1.89
3.11
0.24
1.36
1.18
1.18
0.74
1.25
1.36
0.27
mm
70
85
35
6
58
79
6
34,5
35
35
18,8
31,7
34,5
7
0.27
in
2.75
3.35
1.38
0.24
2.28
3.11
0.24
1.36
1.38
1.38
0.74
1.25
1.36
mm
60
85
35
6
48
79
6
34,5
30
30
18,8
31,7
34,5
7
in
2.45
3.35
1.38
0.24
1.89
3.11
0.24
1.36
1.18
1.18
0.74
1.25
1.36
0.27
mm
70
85
in
2.75
3.35
E
mm
80
in
3.15
mm
80
in
3.15
A
S
35
6
58
79
6
34,5
35
35
18,8
31,7
34,5
7
1.38
0.24
2.28
3.11
0.24
1.36
1.38
1.38
0.74
1.25
1.36
0.27
115
40
8
64
107
8
44
40
40
22
44,5
48,5
8,5
4.53
1.57
0.31
2.52
4.21
0.31
1.73
1.57
1.57
0.87
1.75
1.9
0.33
115
40
8
64
107
8
44
40
40
22
44,5
48,5
8,5
4.53
1.57
0.31
2.52
4.21
0.31
1.73
1.57
1.57
0.87
1.75
1.9
0.33
mm
100
130
50
10
80
120
10
53,5
50
50
25,1
56,9
48
10,5
in
3.94
5.12
1.97
0.39
3.15
4.72
0.39
2.11
1.97
1.97
0.99
2.24
1.89
0.41
Order code
3/CC /-   /40/- -1
Cavity
Cavità
Ports
Attacchi
08
08
10
12
10
16
B) G 1/4
B) 1/4 BSPP
C)
G 3/8
D)
G 1/2
C) 3/8
BSPP
E) G 3/4
16
E) 3/4 BSPP
12
DIVISION
g
d
s
e
t
a
c
Materials
Materiali
1) Aluminium
2) Steel
1) Alluminio
D) 1/2 BSPP
D1WWET01E
2) Acciaio
43
Informations
How to order valves with body
CARTRIDGE CODE
BILLET CODE
J- 1-1
NB-10-A/A-M-0B/
Cavity
Ports
08
B) G 1/4
10
C) G 3/8
12
D) G 1/2
16
E) G 3/4
Materials
1) Aluminium
F) G 1
J) SAE 6
K) SAE 8
2) Steel
L) SAE 10
M) SAE 12
N) SAE 16
44
D1WWET01E
DIVISION
Cavities, tool and tap
2 WAYS SAE CAVITIES
General information
Dimensions
*
39x10-3
VARIATION “A”: the dimensions with “ ”
are related to the variation “A”.Features of
variation “A” are required only if noted on
specific product catalogue page.
98x10-5
39x10-4
-12
20x10-4
19x10-3
-12
*
*
98x10-5
A
B
±0,05
C
±0,05
D
E
F
G
H
±0,02
J
mm
27
20,66
17,42
2,50
18,20
12,72
29,50
1.06
0.81
0.68
3/4 -16
UNF
12,50
in
0.49
0.10
0.72
0.50
1.16
mm
30
24,00
20,62
2,80
24,00
15,90
33,50
1.18
0.94
0.81
7/8 -14
UNF
16,00
in
0.63
0.11
0.94
0.62
1.32
mm
38
29,23
24,73
3,50
34,15
22,25
46,80
1.50
1.15
0.97
1 1/16 -12
UNF
19,00
in
0.75
0.14
1.34
0.87
1.84
mm
45
35,58
31,34
3,50
34,00
28,62
47,00
1.77
1.40
1.23
1 5/16 -12
UNF
22,00
in
0.87
0.14
1.34
1.13
1.85
\
08/2
10/2
12/2
16/2
Rougher tool
K
±0,02
L
M
±0,02
N
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
P
R
øMAX
14,00
8,00
0.55
0.31
18,30
11,00
0.72
0.43
24,50
19,00
0.96
0.75
24,50
19,00
0.96
0.75
Finisher tool
S
T
øMAX
U
V
øMAX
X
øMAX
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Z
øMIN
Prof.Z
MIN
* *
12,00
39
0.47
1.53
14,50
40
0.57
1.57
21,50
60
0.85
2.36
25,50
70
1,00
2.75
Cavity plugs
Tap
Cavity
08/2
10/2
Cavity
Code number
Cavity
Code number
Cavity
Code number
08/2
3UT00053190
08/2
3UT06A1270N
08/2
3UT03416UNF
10/2
3UT00056610
10/2
3UT00054580
10/2
3UT07814UNF
12/2
3UT00054090
12/2
3UT00054670
12/2
3UT0111612UN
16/2
3UT00054510
16/2
3UT00054520
16/2
3UT0151612UN
DIVISION
D1WWET01E
12/2
16/2
Code number
1 2 S
3XTP3533700
X
X
X
3XTP1531900
0
0
X
3XTP3544200
X
X
X
3XTP1542300
0
0
X
3XTP3555400
X
X
X
3XTP1552900
0
0
X
3XTP3575500
X
X
X
3XTP1572900
0
0
X
X=Closed 0=Open
45
Notes
46
D1WWET01E
DIVISION
Notes
DIVISION
D1WWET01E
47
1st edition May 2010
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D1WWET01E