171 / 235
www.dklok.com
Valves
DK-LokTubeFittingCerti cationListing
DK-LokValveCerti cationListing
QualitySystemApprovals
No.VB16-5
July 2013
VB16 Series Integral Bonnet Needle Valves
Pressure Rating up to 6,000 psig
In-Line Pattern
Angle Pattern
Kel-F
10.1
L1
A
H2
H
Open
W
L
A
H1
H
Open
In-Line Pattern
Angle Pattern
Kel-F
10.1
L1
A
H2
H
Open
W
L
A
H1
H
Open
In-Line Pattern
Angle Pattern
L1
A
H2
H
Open
W
L
A
H1
H
Open
In-Line Pattern
Angle Pattern
Kel-F
10.1
L1
A
H2
H
Open
W
L
A
H1
H
Open
Features
Flow Data
Ordering Information and Dimensions
Factory Test
Safe Valve Selection
Two-piece chevron PFA stem packing design with
compensating spring packing.
• improves sealing integrity.
• high pressure valve but with compact design.
Every valve is tested with the nitrogen @ 68 bar (1,000 psig) for leakage at the seat to a maximum allowance leak rate of 0.1 scc /min.
The stem packing is tested for no detectable leakage.
The selection of a valve for any application or system design must be considered to ensure safe performance. Valve function, valve
rating, material compatibility, proper installation, operation and maintenance Remain the sole responsibility of the system designer
and the user. DK-Lok accepts no liability for any improper selection, installation, operation or maintenance.
Cv are measured at the valve. Therefore
restrictions at end connections may reduce flow.
Ordering Number
End Connection
Dimensions, mm(in.)
H2
L
L1
A
W
Orifice/Cv
H
H1
VB16A-
D4T-S
1/4 in. DK-Lok
3.2
(0.125)
Cv 0.21
43.1
(1.69)
10.7 (0.42)
29.5 (1.16)
62.5 (2.46)
39.9 (1.57)
44.5
(1.75)
*36.0
(1.42)
21.6
(0.85)
F4N-S
1/4 in. Female NPT
10.7 (0.42)
25.4 (1.00)
47.8 (1.88)
36.6 (1.44)
M4N-S
1/4 in. Male NPT
-
49.3 (1.94)
-
MF4N-S
1/4 in. Male
1/4 in. Female
26.2 (1.03)
48.5 (1.91)
36.6 (1.44)
VB16B-
D6T-S
3/8 in. DK-Lok
6.4
(0.25)
Cv 0.73
58.0
(2.28)
16.8 (0.66)
-
78.2 (3.08)
-
64.0
(2.52)
*50.0
(1.97)
32.0
(1.26)
D8T-S
1/2 in. DK-Lok
-
83.8 (3.30)
-
F6N-S
3/8 in. Female NPT
-
63.5 (2.50)
-
F8N-S
1/2 in. Female NPT
35.8 (1.41)
52.3 (2.06)
MF6N-S 3/8 in. Male NPT 3/8 in. Female NPT
31.0 (1.22)
MF8N-S 1/2 in. Male NPT 1/2 in. Female NPT
35.8 (1.41)
64.8 (2.55)
MF12N8N-S 3/4 in. Male NPT 1/2 in. Female NPT
-
63.5 (2.50)
-
Angle Pattern
: Valves with L1 dimension available for Angle Pattern. * Round handle diameter.
To order a valve with soft stem, insert -K in the ordering number. i.e., VB16A-D4T-K-S
Materials of Construction
Components
Material Grade
1
Bar Handle
SS316/ASTM A276
2
Position Pin
3
Set Screw Grade B8 TYPE 304/A193
4 Optional Round
Handle
Nylon with brass insert
5
Cap Nut
SS316/ASTM A276
6
Gland
7 Spring Packing (2)
S17700/A693
8 Upper / Lower Gland
(2)
SS316/ASTM A276
9 Chevron Packing (2)
PFA/D3307
10 Standard Vee Stem SS316/ASTM A276
10.1 Optional Soft Stem Kel-F (PCTFE)
11
Body
SS316/ASTM A276
Pressure-Temperature Ratings
Temperature rating of VB16A & B series
with nonrotating Kel-F soft seat -65 to
200 °F (-53 to 93 °C), Vee stemmetal seat
-65 to 450 °F (-53 to 232 °C).
Non-rotating soft seat for repetitive
shut-off on gas
ASME Class
2500
Material Group
2.2
Material
SS316
Temperatur °F
(°C )
Working Pressure,
psig (bar)
-65 to 100
(-53 to 37)
6000 (413)
200 (93)
5160 (355)
250 (121)
4910 (338)
300 (148)
4660 (321)