V15 Series

Rev. 01-01
Aug. 2023

Needle Valves

V15 Series Needle Valves

Forged body, Pressure Rating up to 5000psig (345bar)

Integral Bonnet Needle Valves For regulating and shut-off
Stem
Hard chrome plated stem threads assuresextended service life

Positive Driven Handle
Choice of Round handle and Bar handle
Packing Nut
Allows external adjustments of packing

Choice of Fluid Control• Metal to metal Vee & Regulating stems forelevated temperatures• Repetitive soft seat for gas leak-tight

Panel Nut
Allows panel installation
Integral Bonnet Design
To eliminate inadvertent stem back-out

Variety of end connections• Reliable DK-Lok Tube Fitting Ends
• NPT & ISO Male & Female

Packing• Low operating torque.
• Standard PTFE
• Optional Chevron PEEK for high temperature

Materials of Construction
Components
1
2
3

Round handle

SS316

Bar handle
Set ScrewStandard Vee Stem
Optional Regulating stem
Optional Soft Seat Stem

SS316/A276
Hard Chrome-plated on stem tip and threads
SS316/A276
Hard Chrome-plated on threads

SS316/A276

6

Packing Gland

SS316/A276

Body

SS316/A182

7
8

Panel Nut

Wetted parts and lubricant are listed in blue.

Alloy R-405

PCTFE

Brass/B16

Alloy R-405/B164

Brass/B16

Alloy R-405/B164

Brass/B283

Alloy 400/B564

Standard PTFE, Optional PEEK

SS316/A276

Brass/B16

Lubrication : Molybdenum disulfide with hydrocarbon coating

Design• Designed for a wide range of general purpose in gas and liquid applications• Forged Body with Inline and Angle pattern• Integral Bonnet design to eliminate inadvertent stem back-out• Standard metal seal for pressure tightness at elevated temperatures• Standard PTFE packing, and optional PEEK packing for higher temperature service• Packing nut allows external packing adjustment to ensure leak-free packing on stem
• Broad choices of end connections include reliable DK-Lok, NPT & ISO Male & Female pipe threads

1

ALLOY 400

SS316/A276

Packing Nut
Packing

BRASS

Nylon with brass insert
SS304/A276

4
5

VALVE BODY MATERIALS
Material Grade/ASTM Specification

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

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SS316/A276

Rev.01-01
Aug.2023

Operation• Pressure rating up to 5,000psig (345bar) @100°F (38°C)• Temperature rating up to 450°F (232°C) with standard PTFE packing; up to 600°F (315°C) with optional PEEK packing• Panel mounting without packing disruption• Standard SS316 and Brass material valve construction• DK-Lok Gap gauge allows easy inspection for sufficient tube pull-up before a system is pressurized• Valves for Sour Gas Service meeting the requirements of NACE MR0175 are available

Factory Test

Every valve is tested with the nitrogen @1,000psig (68bar) for leakage at the seat to a maximum allowable leak rate of 0.1 SCCM.
The packing is tested for no detectable leakage.

Panel mounting

How to mount the valve on panel.
Panel Nut
Valve
Series13.5 (0.53)

V15C

20.0 (0.79)

V15D

Panel Thickness

Panel
Hole Drill

V15A

V15B

Disassembly

Panel hole drill and thickness mm(in)13.5 (0.53)

26.2 (1.03)

Min.

Max.

3.17
(0.125)6.35(0.25)

1. Un-tighten the handle set screw using an allen key and remove the handle.
• Handle Set Screw Allen Key

Valve Series

Round Handle

V15A & V15B

Allen Key

Hex.2.5mm

V15C

Reassembly

4. Tighten the panel nut onto the valve bonnet.
Keep the panel nut always on the external portion of the panel.
5. Finger tighten the packing nut onto the valve body.
6. Place the round handle on the stem. Align the set screw with thegroove on the side of the stem. Tighten the set screw.
7. Fully close the valve and retract the stem two or three turns before
torque the packing nut to the torque below.

Bar Handle

Hex. 4.0mm

Hex.3.0mm

V15D

2.Remove the packing nut & panel nut and set aside for later use.
3.Place the valve bonnet in the panel hole.

Hex. 5.0mm• Packing Nut Torque Table

Valve Series

V15A & V15B
V15C

V15D

lbf·ftTorque5.2

kgf·cm

10.6

25.1

71.9

146.6
347

Choice of Stem Tip
Vee Stem

Regulating Stem

Metal to metal Vee stem for pressure tightness
at elevated temperature.

Regulating stem for flow rate control

Non-Rotating Soft Seat

Non-rotating PCTFE soft seat for repetitive shut-off on gas.
• Round Handle is recommended for soft seat valve.

Note : Soft seat packing adjustment may be required during service to compensate the physical compression of soft seat after repeated shut-off.

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All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

2Ordering Information and Table of Dimensions

Valve Basic
Ordering Number
F-2N-

V15A

M-2N-

MD-2N2T
D-2T-

D-3M-

End Connections

Inlet

Outlet1/8" Female NPT
1/8" Male NPT

1/8" Male NPT

1/8" DK-Lok

3mm DK-Lok

F-2N-

1/8" Male NPT

M-4N-

V15B MD-4N4TD-6MD-4T-

1/4" Male NPT

1/4" Male NPT

F-4R-

6mm DK-Lok

1/4" Male NPT

V15C MD-6N6T-

3/8" Male NPT

M-6N-

MD-6N8T-

V15D

3/8" DK-Lok

3/8" Male NPT

3/8" Male NPT

3/8" DK-Lok

1/2" DK-Lok

10mm DK-Lok

D-12T-

0.37

25(0.98)60(2.36)

29(1.14)30(1.18)
28(1.10)
6.4(0.252)0.73

71(2.80)

1/2" DK-Lok

3/8" Female NPT

1/2" Female ISO Tapered

D-8T-

4.3
(0.17)

12mm DK-Lok

F-8R-

MF-8N-

21(0.83)

3/8" DK-Lok

3/8" Female ISO Tapered

M-8N-

26(1.02)

1/4" Female NPT

F-6R-

F-8N-

21(0.83)60(2.36)

1/4" Female ISO Tapered

1/4" Male NPT

MD-4N6T-

F-6N-

0.09

B

1/4" Female NPT

MF-4N-D-8T-

A

8mm DK-Lok

F-4N-

D-12M-

1/4" DK-Lok

1/4" DK-Lok

D-8M-

D-6T-

2.0
(0.08)

Cv

1/8" Female NPT

M-2N-

D-10M-

1/8" DK-Lok

Orifice1/2" Female NPT
1/2" Male NPT

1/2" Male NPT

1/2" Female NPT

9.5(0.374)1.80

99(3.90)

1/2" DK-Lok

3/4" DK-Lok

L

42(1.65)47(1.85)L121(0.83)20(0.79)

26(1.02)26(1.02)42(1.65)21(0.83)

50(1.97)57.6(2.27)
59.2(2.33)
56(2.20)61.2(2.41)
58(2.28)

L221(0.83)

52(2.05)54(2.13)25(0.98)
28.8(1.13)25(0.98)

28.8(1.13)

E

D

H

H1

9.5
(0.37)

11(0.43)

36(1.42)

32(1.26)

9.5(0.37)

11(0.43)

36(1.42)

45(1.77)

13(0.51)

13.5(0.53)

50(1.97)

64(2.52)

19(0.75)

19(0.75)

66(2.60)

76(3.00)

29.6(1.16)

28(1.10)28(1.10)33.2(1.31)
29(1.14)29(1.14)62.2(2.45)

29(1.14)33.2(1.31)

33(1.30)66(2.60)

33.2(1.31)

33.2(1.31)

36(1.42)72(2.83)

36(1.42)36(1.42)38(1.50)76(2.99)38(1.50)38(1.50)

49(1.93)97(3.82)65(2.56)

Unit : mm (in.)

Dimensions

36(1.42)48.5(1.91)

All dimensions shown are for reference only and are subject to change. Dimensions with DK-Lok nuts are in finger-tight position.
Patterns : To order angle pattern, use -A as a suffix to the valve ordering number. Example: V15A-F-2N-A

Table 1. Pressure-Temperature Ratings for valves with standard PTFE packing

Pressure rating of valves with PCTFE soft seat is limited to 200°F (93°C).
ASME Material GroupTABLE 2-2.2

ASME Class Rating

2,080

Material Name

Temperature @ pressure-65°F (-54°C) to

N/A

SS316

psig

TABLE 2-3.4

Brass
bar

psig

N/A

Alloy 400

bar

psig

bar

100°F (38°C)
200°F (93°C)
300°F (148°C)

5,000
4,293
3,877

345
296
267

3,000
2,353
2,059

207
162
142

3,000
2,640
2,470

207
182
170

400°F (204°C)
450°F (232°C)

3,562
3,437

246
237

392
-

27

2,390
2,380

165
164

350°F (176°C)

3,719

256

1,471

101

2,430

Note : Pressure rating of valve may be limited to the working pressure of pipe ends and the tubing connected.
Refer to DK-Lok Tube Fitting catalog for the details of working pressures in various tubing sizes, materials and wall thickness.
3

1,500

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

www.dklok.com

167

Table 2. Pressure-Temperature Ratings for valves with optional PEEK packing
SS316

Valve Material

BrassAlloy 400

Packing

Stem

PEEK

Metal to metal(Vee & Regulating)Pressure –Temperature Rating °F (°C)

-65 to 600 (-54 to 315) @ 3,130 psig (215 bar)

-65 to 400 (-54 to 204) @ 3,000 psig (207 bar)

-65 to 500 (-54 to 260) @ 2,370 psig (163 bar)

How to order

Select applicable Valve Pattern, Stem type, Handle and Body material from designators listed below.
V15B-F-2N
V15B-F-2N-PK-A

Stem Packing
Designator

Valve Pattern
Nil : Inline pattern
A : Angle pattern

-BH

-S

Stem Designator

Handle Designator

Nil : Standard Vee stem tip
R : Regulating tip
K : PCTFE (Kel-F) soft seat

Nil : Nylon Round Handle
BH: Bar Handle

Body Material
Designator-R

Nil : Standard PTFE
PK : PEEK

Handle for Soft Seat
Nylon Round Handle is recommended for soft seat valve. This helps preventthe soft seat from damage.

-S

S : SS316
B : Brass
M : Alloy 400

We reserve the right to change specifications stated in this catalog for our coutinuing program of improvement.

Safe Valve Selection

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.

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All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

4경상남도 김해시 주촌면 골든루트로 129번길 7 50969
7, Golden root-ro 129beon-gil, Juchon-myeon, Gimhae-si, Gyeongsangnam-do, South Korea. 50969
Tel. +82-55-338-0114 Fax. +82-55-901-0141 www.dklok.com

V16, VH16 Series

Rev. 01-01
Aug. 2023

V16/VH16 Series Severe Service
Union Bonnet Valves

Rev.01-01
Aug.2023

Pressure Rating up to 10,000 psig (689 bar)

Needle Valves

Features• Pressure up to 10,000 psig (689 bar) @ 100°F (38°C).
• Temperature Rating up to 449°F (232°C) with standard PTFE packing; up to 1,200°F (648°C) with Grafoil packing.
• Standard 316 stainless steel, optional Alloy 400, and Alloy C276 construction.
• Valve stem back seating against the bevelled edge of bonnet in fully open position prevents maximum leakage through bonnet
when packing fails.
• Standard non-rotating stem disc and stem packing below the threads design.
■
■
■
■
■
■
■
■

Handle- Standard Stainless Steel formed handle, optional aluminum bar handle.

External Packing Bolt- allows packing adjustment without the valve disassembly.
Roll threaded and hard chrome plated stem- is for long valve life.

Panel Mounting Nut- is standard and permits valve to panel or actuator.
Union Nut- prevents accidental disassembly of the valve in service.

Stem Packing below the threads- prevents media contamination and thread lubricant washout.
Stem Back Seating- in fully open position.

Non-Rotating Stem Disc at Closure- is for maximum metal seat life and positive seal.

Materials of Construction
Component

Valve Body Materials

SS316

Alloy 400

Material Grade/ASTM Specification

1. Bar handle

Stainless Steel for V16, SS316 / A276 for VH16,
optional anodized aluminum handle

3. Packing bolt

SS316 / A276 or A479

2. Set screw

SS304

4. Cap nut

5. Bonnet

SS316 / A276 or A479

SS316 / A276 or A479
Alloy 400/B164

SS316 / A276 or A479

Alloy 400/B164

C276/B574

8. Packing supports (2)SS316 / A276 or A479

Alloy 400/B164

C276/B574

TYPE630/A564

Alloy 400/B164

C276/B574

PTFE/D1710, optional PEEK & Grafoil

Hard Chrome-plated
SS316 / A276 or A479

9. Stem

10. Standard globe disc, optional
globe ball & regulating disc.
11. Panel nut

12. Union nut
13. Body

SS316 / A276 or A479

Wetted parts and lubricants are listed in blue.

Alloy 400/B164

SS316

SS316 / A276 or A479
Alloy 400/B164

Lubrication : • Nickel anti-seize lubricant (hydrocarbon carrier).
• Ball disc: hydrocarbon-based.

Ratings below are for valves with standard PTFE packing. Refer to valve ratings with optional packing on Page 4.
Valve Material
SS316
Alloy 400
Alloy C276

Stem Disc Designator
Globe: Nil.
Regulating: -R
Ball: -B

Temperature
Range °F (°C )-65 to 450 (-53 to 232)

Pressure Rating@ -65 to 100°F (-53 to 38°C)

10,000 psig (689 bar)

Factory Test and Cleaning

Every valve is tested with the nitrogen gas @ 1,000 psig (68.9 bar) for leakage at the seat to a maximum allowable leak rate of 0.1
SCCM. The packing is tested for no detectable leakage. Optional hydrostatic shell test with additional cost is performed with purewater at 1.5 times the working pressure. Every valve is cleaned and packaged in accordance with DK-Lok cleaning standard DC-01.
1

C276/B574

6. Gland

7. Packing(2)Technical Data

Alloy C276

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

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C276/B574

C276/B574

Basic Ordering
NumberF2N-

V16A-

End Connections

Inlet

Outlet1/8 Female NPT

F4N-

1/4 Female NPT

MF4N-

1/4 Male to Female NPT

D4T-

1/4 DK-Lok

M4ND6M-

SW4TD8M-

1/4 Male NPT
6mm DK-Lok

D10M-

10mm DK-Lok

D6T-

V16B- D12MD8T-

SW4PSW6T-

SW8TF8N-

12mm DK-Lok
1/2 DK-Lok
1/4 PSW
3/8 TSW

1/2 TSW

1/2 Female NPT

F12N-

3/4 Female NPT

MF8N-

1/2 Male to Female NPT

MF16N-

1" Male to Female NPT

F16N-

1" Female NPT

MF12N- 3/4 Male to Female NPT

V16C- D12MD8T-

DK-Lok 12mm
1/2 DK-Lok

D12T-

3/4 DK-Lok

SW8P-

1/2 PSW

D16T-

SW8T-

SW12T-

1 DK-Lok
1/2 TSW

3/4 TSW

L2

B

C

B1

Dimensions, mm(inch)
B2

50.8(2.00) 25.4(1.00) 22.6(0.89) 25.4(1.00) 32.3(1.27) 27.7(1.09) 27.7(1.09)

50.8(2.00) 25.4(1.00) 25.4(1.00) 25.4(1.00) 35.1(1.38) 27.7(1.09) 27.7(1.09)

61.0(2.40) 30.5(1.20) 29.5(1.16) 37.6(1.48) 39.1(1.54) 27.7(1.09) 27.7(1.09)

46.2(1.82) 23.1(0.91) 22.4(0.88) 30.2(1.19) 31.8(1.25) 27.7(1.09) 27.7(1.09)

61.0(2.40) 30.5(1.20)

-

-

-

27.7(1.09)-

A1

9.7(0.38)

9.7(0.39)

9.7(0.38)

9.7(0.39)

9.7(0.38)

9.7(0.38)

9.7(0.38)

9.7(0.38)

A2

9.7(0.38)

9.7(0.38)

9.7(0.38)

9.7(0.38)

9.7(0.38)

9.7(0.38)

9.7(0.38)-

HG

45.0(1.77) 15.1(19/32) 77.2(3.04) 77.2(3.04)

45.0(1.77) 15.1(19/32) 77.2(3.04) 77.2(3.04)

45.0(1.77) 15.1(19/32) 77.2(3.04) 77.2(3.04)

45.0(1.77) 15.1(19/32) 77.2(3.04) 77.2(3.04)

45.0(1.77) 15.1(19/32) 77.2(3.04) 77.2(3.04)

45.0(1.77) 15.1(19/32) 77.2(3.04)

72.4(2.85) 36.1(1.42) 33.0(1.30) 39.4(1.55) 45.7(1.80) 34.0(1.34) 34.3(1.35) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

71.9(2.83) 35.8(1.41) 32.8(1.29) 42.2(1.66) 45.5(1.79) 34.0(1.34) 31.0(1.22) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

0.86 77.2(3.04) 38.6(1.52) 35.6(1.40) 41.9(1.65) 48.3(1.90) 34.0(1.34) 34.0(1.34) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)
77.2(3.04) 38.6(1.52) 35.6(1.40) 41.9(1.65) 48.3(1.90) 34.0(1.34) 34.0(1.34) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

57.2(2.25) 28.4(1.12) 25.4(1.00) 28.4(1.12) 38.1(1.50) 34.0(1.34) 37.3(1.47) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

57.2(2.25) 28.4(1.12) 25.4(1.00) 31.8(1.25) 38.1(1.50) 34.0(1.34) 34.0(1.34) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

57.2(2.25) 28.4(1.12) 25.4(1.00) 25.4(1.00) 38.1(1.50) 34.0(1.34) 35.6(1.40) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)79.2(3.12) 39.6(1.56) 33.3(1.31) 39.6(1.56) 50.8(2.00) 46.2(1.82) 50.8(2.00) 15.7(0.62) 17.5(0.69) 90.0(3.54) 26.2(1-1/32) 121(4.78)

82.6(3.25) 41.1(1.62)
91.9(3.62) 46.0(1.81)

-

-

-

-

-

-

48.5(1.91)-

54.1(2.13)-

19.8(0.78)

25.4(1.00)

-

--

D1

45.0(1.77) 15.1(19/32) 77.2(3.04) 77.2(3.04)

57.2(2.25) 28.4(1.12) 25.4(1.00) 28.4(1.12) 38.1(1.50) 34.0(1.34) 37.3(1.47) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

6.4(0.25)

D

45.0(1.77) 15.1(19/32) 77.2(3.04) 77.2(3.04)

57.2(2.25) 28.4(1.12) 25.4(1.00) 28.4(1.12) 38.1(1.50) 34.0(1.34) 37.3(1.47) 12.7(0.50) 12.7(0.50) 64.0(2.52) 19.8(25/32)

3/8 Female NPT
3/8 DK-Lok

L1

51.6(2.03) 26.2(1.03) 22.6(0.89) 25.4(1,00) 32.3(1.27) 27.7(1.09) 27.7(1.09)
4.0
0.35(0.156)61.0(2.40) 30.5(1.20) 29.5(1.16) 37.6(1.48) 39.1(1.54) 27.7(1.09) 27.7(1.09)

1/4 TSW

1/4 Female NPT

L

52.3(2.06) 26.2(1.03) 22.6(0.89) 25.4(1.00) 32.3(1.27) 27.7(1.09) 27.7(1.09)

8mm DK-Lok

F4N-

F6N-

OrificeCv
mm(in.)

90.0(3.54) 26.2(1-1/32) 124(4.88)

90.0(3.54) 26.2(1-1/32) 129(5.10)

79.2(3.12) 39.6(1.56) 33.3(1.31) 39.6(1.56) 50.8(2.00) 46.2(1.82) 50.8(2.00) 15.7(0.62) 17.5(0.69) 90.0(3.54) 26.2(1-1/32) 121(4.78)-

92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)92(3.62)

126(4.97)--

126(4.97)

82.6(3.25) 41.1(1.62) 36.5(1.43) 41.3(1.62) 56.4(2.22) 48.5(1.91) 50.8(2.00) 19.8(0.78) 19.8(0.78) 90.0(3.54) 26.2(1-1/32) 124(4.88)

126(4.97)

15.7(0.62) 17.5(0.69) 90.0(3.54) 26.2(1-1/32) 121(4.78)

123(4.85)

91.9(3.62) 46.0(1.81)
54.1(2.13)
11.1
2.20 99.6(3.92) 49.8(1.96) 42.7(1.68) 52.8(2.08) 60.2(2.37) 46.2(1.82) 47.3(1.88)(0.437)99.6(3.92) 49.8(1.96) 42.7(1.68) 52.8(2.08) 60.2(2.37) 46.2(1.82) 47.3(1.88)
99.0(3.89) 49.5(1.94) 42.7(1.68) 52.8(2.08) 60.2(2.37) 46.2(1.82)-

90.0(3.54) 26.2(1-1/32) 129(5.10)

15.7(0.62) 17.5(0.69) 90.0(3.54) 26.2(1-1/32) 121(4.78)-

123(4.85)

-

-

-

-

-

-

7.1(0.28)
-

-

-

-

-

-

-

9.5(0.37)

7.9(0.31)

9.5(0.37)
-

-

-

-

-

-

-

-

15.7(0.62) 17.5(0.69) 90.0(3.54) 26.2(1-1/32) 121(4.78)

123(4.85)

79.2(3.12) 39.6(1.56) 33.3(1.31) 39.6(1.56) 50.8(2.00) 47.3(1.88) 50.8(2.00) 17.5(0.69) 17.5(0.69) 90.0(3.54) 26.2(1-1/32) 123(4.85)

126(4.97)

9.5(0.37)-

11.2(0.44)

104(4.09) 51.8(2.04)

-

-

-

47.3(1.88)

79.2(3.12) 39.6(1.56) 33.3(1.31) 42.9(1.69) 50.8(2.00) 46.2(1.82)
79.2(3.12) 39.6(1.56)

-

-

-

46.2(1.82)

47.3(1.88)

25.4(1.00)

F-

47.3(1.88)-

17.5(0.69)-

15.7(0.62) 17.5(0.69)
15.7(0.62)

All dimensions shown are for reference only and are subject to change. Dimensions with DK-Lok nuts are in finger-tight position.

-

90.0(3.54) 26.2(1-1/32) 123(4.85)

90.0(3.54) 26.2(1-1/32) 121(4.78)

90.0(3.54) 26.2(1-1/32) 121(4.78)-

123(4.85)--

9.5(0.37)• Non-rotating globe disc providing repetitive leak tight shut-off is standard.
• To order Angle Pattern, insert -A in the basic ordering number. Refer to the ordering information on page 4.

www.dklok.com

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

2Ordering Information

VH16 Series (High Pressure)

End Connections

Basic Ordering
Number

Inlet

F2N-

VH16A-

VH16B-

1/8 Female NPT

F4N-

M4N-

OutletOrificemm(in.)

1/4 Female NPT
1/4 Male NPT

4.0(0.156)

Cv

0.35

L

MF8N-

6.4
(0.25)

1/2 Male to Female NPT

0.86

77.2(3.04)-

77.2(3.04)

57.2(2.25)

28.7(1.13)

34.0(1.34)

12.7(0.50)

63.5(2.50)

20.6(0.81)

77.2(3.04)

57.2(2.25)

82.6(3.25)

1/2 Male NPT

F

20.6(0.81)

1/2 Female NPT

M8N-

D

63.5(2.50)

57.2(2.25)

1/4 Female NPT

G

12.7(0.50)

1/4 TSW

F8N-

H

34.0(1.34)

SW4TF4N-

A1

28.7(1.13)

1/4 Male to Female NPT
1/4 DK-Lok

Dimensions, mm(inch)

B1

57.2(2.25)

MF4ND4T-

L1

57.2(2.25)
71.6(2.82)
79.5(3.13)

79.5(3.13)

82.6(3.25)

28.7(1.13)
28.7(1.13)
35.8(1.41)
28.7(1.13)

39.6(1.56)
41.4(1.63)
39.6(1.56)
41.4(1.63)

34.0(1.34)
34.0(1.34)
34.0(1.34)

12.7(0.50)
12.7(0.50)
127(0.50)

63.5(2.50)
63.5(2.50)
63.5(2.50)

34.0(1.34)

12.7(0.50)

63.5(2.50)

48.2(1.90)

19.8(0.78)

88.9(3.50)

46.0(1.81)
46.0(1.81)
48.2(1.90)

16.0(0.63)
16.0(0.63)
19.8(0.78)

88.9(3.50)
88.9(3.50)
88.9(3.50)

20.6(0.81)
20.6(0.81)
20.6(0.81)
20.6(0.81)

26.9(1.06)
26.9(1.06)
26.9(1.06)
26.9(1.06)

All dimensions shown are for reference only and are subject to change. Dimensions with DK-Lok nuts are in finger-tight position.
•Non-rotating globe disc providing repetitive leak tight shut-off is standard.
•To order Angle Pattern, insert -A in the basic ordering number. Refer to the ordering information on page 4.

77.2(3.04)
77.2(3.04)

V16 Series

ASME Class

Material Group
Material Name

SS316

-65 (-53) to 100 (38)6000 (413)

300 (148)

4660 (321)Temperature, °F (°C)
200 (93)400 (204)500 (260)600 (315)

700 (371)

800 (426)

900 (482)

1000 (537)1100 (593)1200 (648)32.25160 (355)4280 (294)

2500

3.4

-

108(4.27)
111(4.36)

2685 (184)1715 (118)Material Name

SS316

N/A

6000 (413)4120 (283)6000 (413)

300 (148)

8390 (578)5540 (381)

500 (260)

7165 (493)4400 (303)3980 (274)-3030 (208)

N/A

5000 (344)

Working Pressure, psig (bar)3600 (248)3280 (225)

ASME Class

Material Group

-

-

-

-

-

-

6000 (413)Temperature, °F (°C)
-65 (-53) to 100 (38)5880 (405)5040 (347)4730 (325)4230 (291)3745 (258)

200 (93)400 (204)600 (315)
700 (371)
800 (426)
900 (482)

3030 (208)1000 (537)1545 (106)1200 (648)2685 (184)

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

1100 (593)

www.dklok.com-

111(4.36)

108(4.27)

Alloy C-276

3960 (272)3460 (238)N/A

7.1(0.28)

Alloy 400

3980 (274)3760 (259)

N/A

VH16 Series (High Pressure)-77.2(3.04)

Pressure-Temperature Ratings

Ratings are based on valves with optional Grafoil packing.

-Working Pressure, psig (bar)10000(689)9290 (640)7705 (530)6770 (466)6480 (446)6230 (429)5905 (406)5450 (375)4835 (333)3085 (212)-Grafoil packing information

Grafoil is a high temperature packing material that requires a load on the material to generate a seal. In air, Grafoil maximum temperature is 973°F(523°C), in steam, Grafoil goes up to the maximum temperature of 1,200°F (648°C). Grafoil packing is not for use with pneumatic actuating valves.

Valve ratings with DK-Lok end connections

Valve ratings may be limited to the maximum working pressure of connective pipe and tubing. For valve rating with DK-Lok tube fitting end connections,refer to DK-Lok catalog providing suggested working pressures in various tubing OD, wall thicknesses, and materials.

Packing adjustment and actuation torque

Extreme temperature fluctuations while valve in service may require packing adjustment. Valves that have not been actuated for a period of time
may have a higher initial actuation torque.

Valve ratings with optional PEEK packing

SS316 and C276 valve with PEEK packing is limited to maximum 600 °F (315 °C) rating; Alloy 400 valve with PEEK packing is limited to maximum 500°F (260 °C) rating.

Flow Data @ 100°F (38°C) for valves with regulating disc

Globe and Ball Disc

Valve with standard globe and ball disc is designed for use in a fully open or fully
closed position.
Refer to Cv in the ordering information and dimensions table on Page 2.

Cv reduction

Valve flow may be reduced by the restriction of pipe and tubing connected.

Sour Gas Valves

Valves for use in sour gas are available. Valve wetted components are selected to the requirements of NACE MR0175 forsulfide stress cracking resistant materials. To order, insert -SG in the basic ordering number.

Optional Handles

SS316 bar handle is standard. Optional anodized black
aluminum bar handle is available.
To order valve with factory-assembled optional aluminum
handle, insert designator -AH in the ordering number.
To order handle for field assembly, select desired handle
ordering number from the table.

Valve
Series
V16A

V16B
V16C

Field Assembly Bar Handle

SS316

Aluminum

V16B-BH

V16B-AH

V16A-BH

V16C-BH

V16A-AH

V16C-AH

Ordering Information

Select the desired valve basic ordering number, options and body material.
Regulating stem disc is standard for VH16 series.
Optional ball stem disc stem is available.
To order, insert designator -R or -B in the ordering number.
V16B-D-6T-

A

-PK

-B

VH16B-F-8N-

Valve Pattern
Designator

Packing Material
Designator

Stem Disc
Designator

V16C-MF-12N-

Nil : In-line
A : Angle*Grafoil TM UCAR

GF

Nil : PTFE
PK : PEEKGF : Grafoil*

Nil : Globe
R : Regulating
B : Ball-AH

HandleDesignator

Nil : Stainless Steel Formed handle for
V16, SS316 bar handle for VH16
AH: Aluminum bar handle for V16-SGSour Gas
Designator

Nil : no Sour Gas
SG : Sour Gas-BD
Pneumatic Actuator
Designator

Refer to the actuator
ordering information
on page 6-S

Valve Material
Designator

S : SS316
M : Alloy 400
HC : Alloy C276

We reserve the right to change the specifications stated in this catalog for our coutinuing program of valve improvement.

www.dklok.com

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

4

Pneumatic Actuators

V16 series Pneumatic actuators are designed to actuate valves remotely.
V16A and V16B series are available to be equipped with pneumatic actuators in normally closed, normally open, and double-acting
models.

Dimensions

Valve
Series
V16A

V16B

A

107 (4.22)

114 (4.47)

Dimensions in.(mm)H∅D

150 (5.91)

95.3 (3.75)

158 (6.22)

108 (4.25)

All dimensions are reference only and subject to change.

Actuator Technical Data Pressure-Temperature Ratings
Normally closed

150 psig (10.3 bar)
-20 to 300°F (-28 to 148°C)

Operation
Information

Normally
Closed Actuators

5

Normally open and double acting
150 psig (10.3 bar)
-20 to 400°F (-28 to 204°C)∅C82.6 (3.25)

96.8 (3.81)

Pneumatic Actuator Applicability

B

28.4 (1.12)

30.2 (1.19)

V16A and V16B series valves with PTFE or PEEK packing
are applicable to pneumatic actuator. Those valves with
Grafoil packing are not applicable to pneumatic actuator.

Curve 1 - 6 indicate the minimum actuator pressure to open or close pneumatic actuators against
system pressure.
To prolong valve life, actuators should be operated at minimum air actuator pressures.
Curves shown are based on packing bolt factory adjustment.
Packing bolt adjustment may be required to maintain the valve leak-tight.
If the packing bolt is over-tightened, the actuating pressure can not overcome the friction force
between the over-tightened packing and the stem
If the packing bolt is under-tightened for low system pressures, it may leak at high system pressures.
However, packing bolt torque must be sufficiently maintained to prevent packing from leakage.
Adjusting the actuator stem drive nut affects the actuator inside the spring force.
This will also have implications for other actuator components sequentially.

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

www.dklok.com

F

215 (8.47)

239 (9.41)

Normally
Open Actuators

The stem orifice opens beyond the first open position depends on system pressure,flow characteristics of the fluid and valve packing nut adjustment.

V16A Series

V16B Series

Actuator Ordering Information

To order valves with a pneumatic double acting actuator, insert the desired
actuator designator from the chart in the valve ordering number.
Example: V16B-D6T-PK-B-BD-S

Pneumatic Actuator Designator

Valve
SeriesNormally Closed

Normally OpenDouble Acting

V16B

BC

BO

BD

V16A

AC

AO

AD

Safe Valve Selection

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.

www.dklok.com

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

6경상남도 김해시 주촌면 골든루트로 129번길 7 50969
7, Golden root-ro 129beon-gil, Juchon-myeon, Gimhae-si, Gyeongsangnam-do, South Korea. 50969
Tel. +82-55-338-0114 Fax. +82-55-901-0141 www.dklok.com

VB16-V46A Needle Valves

Rev. 01-01
Aug. 2023

VB16 Series Integral Bonnet Needle Valves

Rev.01-01
Aug.2023

Pressure Rating up to 6,000 psig

Needle Valves

FeaturesTwo-piece chevron PFA stem packing design withcompensating spring packing.
• improves sealing integrity.
• high pressure valve but with compact design.

Flow Data

Cv are measured at the valve. Therefore
restrictions at end connections may reduce flow.

Materials of Construction
1

2
3
4

5

6
7

Components

Bar Handle

Pressure-Temperature Ratings

Material GradeSS316/ASTM A276

Position Pin

Set Screw
Optional Round
HandleCap Nut

Grade B8 TYPE 304/A193

Spring Packing (2)S17700/A693

Nylon with brass insert

8

SS316/ASTM A276

10Standard Vee Stem

SS316/ASTM A276

Body

SS316/ASTM A276

10.1
11

Chevron Packing (2)Optional Soft Stem

ASME Class

2500

Material

SS316

Material Group

SS316/ASTM A276

Gland

Upper / Lower Gland(2)

9Temperature rating of VB16A & B series
with nonrotating Kel-F soft seat -65 to
200 °F (-53 to 93 °C), Vee stem metal seat
-65 to 450 °F (-53 to 232 °C).
Non-rotating soft sear for repetitive
shut-off on gas

Temperature °F(°C )PFA/D3307-65 to 100(-53 to 37)

Kel-F (PCTFE)

250 (121)

2.2

Working Pressure,psig (bar)6000 (413)

200 (93)

5160 (355)4910 (338)300 (148)

4660 (321)

Ordering Information and Dimensions
Ordering Number

End Connection

F4N-S

1/4 in. Female NPT

VB16A-

D4T-S

M4N-S

MF4N-S
D6T-S

1/4 in. DK-Lok

1/4 in. Male NPT

1/4 in. Male

1/2 in. DK-Lok

F6N-S

F8N-S

MF6N-S

MF8N-S

MF12N8N-S

3.2(0.125)
Cv 0.21H

43.1(1.69)

H1

10.7 (0.42)
10.7 (0.42)

3/8 in. Female NPT

1/2 in. Female NPT

3/8 in. Male NPT

1/2 in. Male NPT

3/4 in. Male NPT

3/8 in. Female NPT

1/2 in. Female NPT

H2

29.5 (1.16)

6.4(0.25)

Cv 0.73

16.8 (0.66)

1/2 in. Female NPT

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

62.5 (2.46)

L1

A
44.5
(1.75)

39.9 (1.57)

47.8 (1.88)

36.6 (1.44)

26.2 (1.03)

48.5 (1.91)

36.6 (1.44)

83.8 (3.30)

-

-

-

58.0
(2.28)

L

25.4 (1.00)-

3/8 in. DK-Lok

D8T-S

VB16B-

1/4 in. Female

Dimensions, mm(in.)

Orifice/Cv-

35.8 (1.41)

31.0 (1.22)

35.8 (1.41)

49.3 (1.94)

78.2 (3.08)

63.5 (2.50)

-

-

-

-

52.3 (2.06)-

Factory Test

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.

Safe Valve Selection

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.

1

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

www.dklok.com*36.0(1.42)
64.0(2.52)*50.0(1.97)

W
21.6(0.85)

32.0(1.26)

V46A series Hex. Body Needle Valves

Pressure rating up to 10,000 psig

DK-Lok Tube Fittings

FeaturesPressure-Temperature Ratings• Packing bolt permits packing adjustment externally.
• Chevron PTFE packing design provides far improved
sealing integrity.
• Packing below stem threads is to isolate threads fromsystem fluid and lubricant washout.
• Non-rotating stem tip at closure for long-life and leak-tightshutoff.
• Lock plate ensures the valve fastened to the body.
• NACE MR0175/ISO 15156-3 applicable

Body
Material

Stainless steel

Carbon steel

Materials of Construction

Packing
material
PTFE

Grafoil
PTFE
GrafoilTemperature
RatingPressure Rating@ 38 °C (100 °F)- 54 to 232 °C(-65 to 450 °F)

689 bar(10,000 psig)-54 to 648 °C(-65 to 1,200 °F)- 29 to 176 °C(-20 to 350 °F)

689 bar(10,000 psig)- 29 to 176 °C(-20 to 350 °F)

Pressure Rating@ Max. Temp.

285 bar @ 232 °C
4,130 psig @ 450 °F

118 bar @ 648 °C
1,715 psig @ 1,200 °F
360 bar @ 176 °C(5,230 psig @ 350 °F)

Valve Body Materials

Component

Stainless steel

Carbon steel

Grade/ASTM specification

1. Handle

Stainless steel

2. Set screw
3. Cap nut

Carbon steel

SS316/A276 or A479

4. Packing bolt
5. Gland

Carbon steel

C.Steel/JIS G4051

SS316/A276 or A479

6. Packing supports

Standard chevron PTFE packing. Optional Grafoil.

8. Bonnet

SS316/A276 or A479

7. Packing
9. Stem

10. stem discSS316/A276 or A479
C.Steel/JIS G4051

SS316/A276 or A479

SS630/A564

11. Lock bolt

Stainless steel

12. Lock plate
13. Body

SS316/A276 or A479

Wetted components listed in blue.

C.Steel/ JIS G4051,
White zinc galvanized.
Grafoil : TM UCAR

Ordering Information and Dimensions
Basic Ordering No.

D-4T-

Inlet

D-6T-

V46A-

Rev.01-01
Aug.2023

1/2 DK-Lok

F-4N-

1/4 Female NPT

F-6NF-8N-

MF-12N8N-

1/4 DK-Lok

OutletOrificein. (mm)

3/8 DK-Lok

D-8T-

MF-8N-End Connection

3/8 Female NPT
1/2 Female NPT

1/2 Male NPT

1/2 Male NPT

1/2 Female NPT

Cv

Dimensions, in.(mm)L2

3.21 (81.5)

1.59 (40.4)

1.62 (41.1)

0.83

3.54 (90.0)

1.76 (44.7)

1.78 (45.3)

0.83

1/2 Female NPT

Dimensions shown are for reference only and subject to change.

How to order

L1

0.37

0.64

0.126
(3.2)

L

3.33 (84.5)

3.0 (76.2)
3.5 (88.9)

1.65 (41.9)

1.75 (44.4)
2.25 (57.1)

Hex

D

O

1.25
(31.75)

1.77
(45)

2.64
(67.2)

1.68 (42.6)

1.25 (31.8)

2.25 (57.1)• To complete ordering number, add material designator S for stainless steel or C for carbon steel. Example V46A-F8N-S• To order optional Grafoil packing, insert GF to the ordering number. Example V46A-F8N-GF-S• To order NACE applicable valve, insert SG to the ordering number. Example V46A-F8N-GF-SG-S

Factory test, cleaning and packaging• Every valve is factory tested with nitrogen @ 69 bar (1,000 psig) for leakage at the seat to a maximum allowable leakrate of 0.1 SCCM.
• Stem packing is tested for no detectable leakage.
• Every valve is cleaned and packaged in accordance with DK-Lok Corporation cleaning standard DC-01.
Optional DC-11 cleaning for oxygen application is available on request.

Packing adjustment and Actuation Torque
Safe Valve Selection• Extreme or rapid temperature cycle while valve in service may require packing adjustment.
• Valves that have not been actuated for a period of time may have a higher initial actuation torque.

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 noliability for any improper selection, installation, operation or maintenance.
www.dklok.com

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

2경상남도 김해시 주촌면 골든루트로 129번길 7 50969
7, Golden root-ro 129beon-gil, Juchon-myeon, Gimhae-si, Gyeongsangnam-do, South Korea. 50969
Tel. +82-55-338-0114 Fax. +82-55-901-0141 www.dklok.com

VEX110 Needle Valves

Rev. 01-01
Aug. 2023

VEX110 Needle Valves

Bar Stock Union Bonnet High Pressure Needle Valve
Maximum Working Pressure 10,000 psig (689 bar)

Needle Valves

Features

Temperature and Pressure Ratings• Premium multiple four (4) sealing mechanism.
• Unique pressure reacting sealing system eliminates the needof packing adjustment.
• Sealing cup swells up in system pressure for leak-tightoperation.
• Backseat stem design prevents stem blowout.
• High precision machining provides low valve operating torque.
• Stem packing below the threads prevents thread lubricant
washout and media contamination.

Material of Construction#

Component

1

Body

2

Bonnet3

Temp.
Rating°C (°F)-30 ~ 250(-22 ~ 482)

PEEK

-30 ~ 204(-22 ~ 399)

Pressure
Rating@ 38°C(100°F)689 bar(10,000 psi)

*KZ: Kalrez ( Perfluoroelastomer ), TM Dupont*VT: Viton ( Vinylidene fluoride-based fluoroelastomer ), TM Dupont

In-line pattern

Angle pattern

S316/A479, A276

Standard
PolyetheretherketonPEEK

7

Handleguide

Poly Oxy MethyleneCopolymer- POM C

Upper& LowerO-ring seal

Handle pin

9Set screw

11

BonnetLocking Pin

10

VT*

Standard
Sealing
Cup
Material

S316/A479, A276

Packing

8

KZ*

SS316

Material / ASTM

5

Sealing Cup

6

Optional
Valve
O-ringDesignator

Valve
Material

S316/A479, A276

Stem

4

Rev.01-01
Aug.2023

Bar Handle

KalrezorViton

S316/A479, A276

Lubrication : Molybdenum disulfide lubricant
Note:

1. Wetted components are marked in blue.

2. Sealing system is marked in Red.

Ordering Information and Table of Dimensions
Basic Ordering Number

In-line pattern
VEX110BAngle pattern
VEX110B-

MF-4N-*-S

Inlet

End Connections

1/4" Male NPTOutlet1/4" Female NPT

MF-6N-*-S

3/8" Male NPT

3/8" Female NPT

MF-4N-A-*-S

1/4" Male NPT

1/4" Female NPT

MF-8N-*-S

MF-6N-A-*-S
MF-8N-A-*-S

1/2" Male NPT
3/8" Male NPT
1/2" Male NPT

1/2" Female NPT
3/8" Female NPT

Orifice
mm (in.)4.76(0.19)

0.75

1/2" Female NPT*Ordering information
To order valve with Viton o-ring, insert the designator "VT"to the valve ordering number.
To order valve with Kalrez o-ring, insert the designator "KZ"to the valve ordering number.

Flow Coefficient at Turns Open

Cv

L

L1

88.9
(3.5)
50.8
(2.0)

Dimensions, mm (inch)
L2

L3

H

P

44.45
(1.75)

44.45(1.75)-

90.0(3.54)

71.5(2.81)

15.87(0.62)

34.93(1.38)

36.6(1.44)

90.0(3.54)

71.5(2.81)

Example: VEX110B-MF-4N-VT-S.
Example: VEX110B-MF-8N-A-KZ-S.

Flow Data

Cv is measured at the valve.
Restrictions in end connections may reduce
the flow.

Factory Test

Every valve is tested with the nitrogen @ 68 bar(1,000 psig) at the seat to a maximum allowable leakrate of 0.1 scc/min. The packing is tested for no
detectable leakage.
1

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

www.dklok.com

Model Shown: Angle Pattern
VEX110B-MF-8N-A-VT-S경상남도 김해시 주촌면 골든루트로 129번길 7 50969
7, Golden root-ro 129beon-gil, Juchon-myeon, Gimhae-si, Gyeongsangnam-do, South Korea. 50969
Tel. +82-55-338-0114 Fax. +82-55-901-0141 www.dklok.com

VG16 Series

Rev. 01-01
Aug. 2023

Needle Valves

Features

VG16 Series General Utility Service
Needle Valves
Pressure up to 6,000 psig (413 bar)

• Compact and sturdy design.
• Sintered molded handle for the user of the handle operational
convenience.
• Stainless steel spring pin in order to prevent the loosening of
bonnet.
• The fluid is not in contact with the threaded stem.
• VG16 series Isolates and vents the system media in instrument
air, nitrogen header, lube oil, and general utility service
applications in the oil and gas, chemical, petrochemical, andother general industrial markets.

Design• Straight and angle patterns.
• Standard PTFE packing, and optional Graphite packing for higher temperature service.
• Broad choices of end connections include reliable NPT & ISO Male & Female pipe threads.

1

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

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Rev.01-01
Aug.2023

Material of Construction
Component

1. Body

Stainless Steel

3. StemCarbon SteelMaterial Grade/ASTM Specification

SS316 / A276

2. Bonnet

Valve Body Materials

Zinc plated carbon steel/AISI 1018

SS316 / A276

SS316 / A276

4. Stem discS17400 SS / A564 Condition H1150D

6. Packing

Carbon/glass-filled PTFE or graphite

5. Bonnet seal ring

7. GlandSS316 / A276

SS316 / A276

8. Packing Bolt

SS316 / A276

9. Lock nut

Stainless steel

11. Handle

Stainless steel

10. Cap

Stainless steel

12. Set screw

Stainless steel

13. Spring pin

Stainless steel* Wetted parts are listed in blue.

Pressure-Temperature Ratings
Temperature, °F(°C)

PTFE-20 (-28) to 0 (-17)-

Packing Material

Working Pressure, psig(bar)Graphite

6000 (413)

0 (-17) to 100 (37)6000 (413)6000 (413)

300 (148)

4680 (322)4680 (322)450 (232)

4110 (283)4110 (283)

200 (93)

5160 (355)

400 (204)

4260 (293)500 (260)-600 (315)-

650 (343)-

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5160 (355)4260 (293)3960 (272)3780 (260)3660 (252)

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

2Ordering Information and Table of Dimensions

Valve Basic
Ordering Number
F-4N

F-4N-A
F-6N

F-6N-A
F-8N

F-8N-A
MF-4N

MF-6N

VG16A

MF-8N

SW-4P

Outlet1/4” Female NPT

1/4” Male NPT

3/8” Male NPT

1/2” Male NPT

1/2” Female NPT

1/4” Pipe Socket weld

3/8” Tube Socket weld

SW-6M

6mm Tube Socket weld

SW-10M

10mm Tube Socket weld

F-8N

1/2” Female NPT

F-12N

F-16N-A

1” Female NPT

F-16N

MF-8N

1/2” Male NPT

1/2” Female NPT

MF-16N1” Male NPT

1” Female NPT

MF-12N
SW-8P

SW-12P
SW-16P
SW-8T

3/4” Male NPT

3/4” Female NPT

1/2” Pipe Socket weld

3/4” Pipe Socket weld

3/4” Tube Socket weld

SW-12M

12mm Tube Socket weld

SW-16M

16mm Tube Socket weld

F-16N

1” Female NPT

SW-16T

SW-14M
F-12N

MF-12N

MF-16N

SW-12P

SW-16P

87.6(3.45)

16.0(0.63)

1.20

19.1(0.75)

1.20

25.4(1.00)

-

-

-

16.0(0.63)64(2.52)

19.1(0.75)

25.4(1.00)

19.1(0.75)

22.4(0.88)

25.4(1.00)

1.20

16.0(0.63)

16.0(0.63)

3/4” Female NPT

1” Male NPT

22.4(0.88)

25.4(1.00)

3/4” Female NPT

22.4(0.88)

1” Female NPT

3/4” Pipe Socket weld
1” Pipe Socket weld

SW-14M

14mm Tube Socket weld

SW-18M

18mm Tube Socket weld

SW-25M

19.1(0.75)

16.0(0.63)

1.20

8.0(0.31)

1” Tube Socket weld

25.4(1.00)

11.0(0.43)

2.2564(2.52)

16mm Tube Socket weld
25mm Tube Socket weld

84.6(3.33)

81.2(3.20)

14mm Tube Socket weld

3/4” Tube Socket weld

SW-16M

16.0(0.63)

12.7(0.50)

19.1(0.75)

SW-12T

SW-16T

45(1.77)1” Tube Socket weld

3/4” Male NPT

22.4(0.88)

84.6(3.33)

81.2(3.20)

98.3(3.87)
101(3.98)
108(4.25)

98.3(3.87)
101(3.98)

108(4.25)

101(3.98)

105(4.13)

108(4.25)

98.3(3.87)
101(3.98)

98.3(3.87)

25.4(1.00)-

27.9(1.10)

44.5(1.75)

31.8(1.25)-

31.2(1.23)

51.0(2.00)

33.3(1.31)

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

57.2(2.25)

136(5.35)

22.4(0.88)

133(5.24)

-

-

-

-

-

-

50.8(2.00)

57.2(2.25)

60.5(2.38)

51.0(2.00)

57.2(2.25)

70.0(2.76)--

31.2(1.23)

51.0(2.00)

35.1(1.38)-

40.6(1.60)

63.5(2.50)

38.1(1.50)-

40.6(1.60)

70.0(2.76)

44.5(1.75)

76.2(3.00)
88.9(3.50)
76.2(3.00)

-

-

-

-

79.6(3.13)

88.9(3.50)

66.8(2.63)

82.6(3.25)

88.9(3.50)-

66.8(2.63)

102(4.02)

102(4.02)

88.9(3.50)
82.6(3.25)

95.3(3.75)
88.9(3.50)

82.6(3.25)

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88.9(3.50)

25.4(1.00)-

63.5(2.50)

133(5.24)

136(5.35)--

57.2(2.25)

82.6(3.25)

133(5.24)-

70.0(2.76)

133(5.24)

136(5.35)

All dimensions shown are for reference only and are subject to change. Dimensions with DK-Lok nuts are in finger-tight position.
3

38.1(1.50)

60.5(2.38)

1.60

1/2” Tube Socket weld

SW-12T

21.6(0.85)

81.2(3.20)

1.60

1” Pipe Socket weld-

12.7(0.50)

1.60

1” Female NPT

C

66.8(2.63)

12.7(0.50)

3/4” Female NPT

B

84.6(3.33)-

8mm Tube Socket weld

3/4” Female NPT

E

16.0(0.63)

-

0.45

1/2” Female NPT

81.2(3.20)

A

54.1(2.13)

0.45

5.0(0.20)12mm Tube Socket weld

DIMENSION, mm(in.)

12.7(0.50)

1/2” Tube Socket weld

F-12N-A

12.7(0.50)

H

0.45

0.55

1/2” Pipe Socket weld

D
-

0.55

1/4” Female NPT

SW-6T

F-8N-A0.45

G3/8” Female NPT

1/4” Tube Socket weld

SW-12MCv

0.55

1/2” Female NPT

SW-4T

SW-8M

Orificemm(in.)

3/8” Female NPT

3/8” Pipe Socket weld

SW-8T

VG16C

End Connections

SW-6P
SW-8P

VG16B

Inlet

-

-

-

Flow Data @ 100°F(38°C)

Option & Accessories

Factory Test and Cleaning

Every valve is tested with the nitrogen gas @ 1,000 psig (68.9bar) for leakage at the seat to a maximum allowable leak rateof 0.1 SCCM.
The packing is tested for no detectable leakage. Optionalhydrostatic shell test with additional cost is performed withpure water at 1.5 times the working pressure.
Every valve is cleaned and packaged in accordance with
DK-Lok cleaning standard DC-01.

• Antitamper Handle
Stainless steel bar handle is standard.
Optional antitamper handle is available.
To order valve with factory-assembled
optional antitamper handle, insert
designator -AT in the ordering number.
To order handle for field assembly,
select desired handle ordering number
from the table (“How to order”).

Sour Gas Service• Antitamper Key
The key can be operated withthe antitamper handle.
Order separately.
Ordering NO. G16-KEY-AT-SA.

How to order

VG16A-MF4N-

Nil : In-line
A : Angle

Valves for use in sour gas are available. Valve wetted
components are selected to the requirements of NACE
MR0175 for sulfide stress cracking resistant materials.
To order, insert -SG in the basic ordering number.

-A

-GF

-AT

-S

Valve Pattern
Designator

Packing Material
Designator

OptionDesignator

Valve Material
Designator

Nil : PTFEGF : Graphite

Nil : Stainless Steelformed handle
AT : Antitamper handle

S : SS316
C : Carbon Steel

Safe Valve Selection

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 responsibilityof the system designer and the user. DK-Lok accepts no liability for any improper selection, installation, operation or maintenance.

www.dklok.com

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

4경상남도 김해시 주촌면 골든루트로 129번길 7 50969
7, Golden root-ro 129beon-gil, Juchon-myeon, Gimhae-si, Gyeongsangnam-do, South Korea. 50969
Tel. +82-55-338-0114 Fax. +82-55-901-0141 www.dklok.com

VS13 Series
Rev. 01-01
Aug. 2023

VS13 Series Non-Rotating
Stem Needle Valves

Rev.01-01
Aug.2023

Pressure up to 3,000 psig (207bar)

Needle Valves

Features• Compact and sturdy design• Preventing influx of contaminants when operating
the valve is protected by applying the handle• The size of the orifice provided 0.145 in. (3.7 mm)
and 0.216 in. (5.5 mm).
• DK-Lok Tube Fitting, male NPT, female NPT, andothers are available.

Improving the flow
control function in asuitably adjustment
the vertical movementof the stem

Extends the life of thescrew to not expose
the system fluid toopen and close thethreadProvide a non-rotatingstem repeatedly
blocking

Easy maintenance andpossible replacementof the stem tip

No adjustment isneeded in this O-ringstem seals

Securely seal the stem
head backs contacts inthe fully open state

Material of Construction
Component

SS316

1. Body

SS316/A182

Wetted parts are listed in blue.

PTFE coatedSS316/A276

2. Washer
3. O-ring

4. Back-up ring

Alloy400

Brass

Alloy400/B564

Brass C377/B283

Material Grade/ASTM Standard
PTFE coated
Alloy400/B164

Mo coated
Brass C360/B16

FKM

PTFE/D1710

5. Stem

SS316/A276

Alloy400/B164

SS316/A276

Screw

SS316/A276

Alloy400/B164

SS316/A276

Stem tip

PCTFE/D1430

Mo coated
SS316/A276

6. Packing bolt

7. Handle spool

Mo coated
Alloy400/B164

Aluminum 6061/B211

8. Set screw

Mo coated
Brass C360/B16

Stainless Steel 304

9. Retainer

Zinc plated steel

10. Handle

Aluminum 6061/B211 with block anodizing

Wetted parts are listed in blue.

Apply only the proper torque to require a shutoff in order to prevent leakage,
maintaining the proper performance, and increase the lifetime of the valve.

Pressure-Temperature Ratings
ASME Class

1250

1500

N/A

Material Name

SS316

Alloy 400

Brass

Material Group

2.2

Stem tip Material

PCTFE-20(-28) to 100(38)200(93)Temperature, °F(°C)
150(65)250(121)300(149)350(177)400(204)

450(232)

PEEK

PCTFE

3000(207)

3000(207)2580(178)

2580(178)

2790(192)
-

-

-

-

-

• Buna N, EPDM, and silicon O-ring is max. 250°F(121°C).

13.4

2790(192)

2455(169)

2330(160)

2236(154)

2141(148)

2067(143)

N/A

PEEK

PCTFE

3000(207)

3000(207)

3000(207)

2630(181)2630(181)

2350(162)

Working Pressure, psig(bar)2815(194)
-

-

-

-

-

• Buna C O-ring is -65°F(-53°C) to 250°F(121°C)

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

2815(194)2540(175)

2450(169)

2408(166)

2365(163)2365(163)

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2675(184)
-

-

PEEK
3000(207)

2675(184)

2350(162)

2200(152)

2050(141)-1220(84.1)

-

-

-

390(26.9)

Flow Data @ 100°F(38°C)

Factory Test and Cleaning

Every valve is tested with the nitrogen gas @ 1,000 psig
(68.9 bar) for leakage at the seat to a maximum allowableleak rate of 0.1SCCM.
The packing is tested for no detectable leakage. Optionalhydrostatic shell test with additional cost is performed withpure water at 1.5 times the working pressure.
Every valve is cleaned and packaged in accordance with
DK-Lok cleaning standard DC-01.

Ordering Information and Table of Dimensions
In-line pattern

Valve Basic
Ordering Number

VS13A-

VS13B-

D4T

D6M

VS13C-

Outlet1/8" DK-Lok

1/8" DK-Lok

1/4" DK-Lok

1/4" DK-Lok

6mm DK-Lok

6mm DK-Lok

M4N

1/4" Male NPT

1/4" Male NPT

MD4N6M

1/4" Male NPT

6mm DK-Lok

F4N

1/4" Female NPT

1/4" Female NPT

MD4N4T
D6T

Angle pattern

Option

D2T

End Connections

Inlet

M6N

MD4N6T
MF8N4N

1/4" Male NPT
3/8" DK-Lok

3/8" Male NPT

1/4" Male NPT

1/2" Male NPT

1/4" DK-Lok

Orifice,mm(in.)

2.4(0.093)
3.7(0.145)

Cv

0.12
0.27

3/8" DK-Lok

27.9(1.10)

Dimensions, mm(in.)

B

D

E

F

5.5(0.217)

0.53

1/4" Female NPT

28.7(1.13)

57.4(2.26)
57.4(2.26)

28.7(1.13)

25.0(0.98)

25.0(0.98) 28.7(1.13)

28.5(1.12) 10.6(0.42) 48.5(1.91) 50.0(1.97)
53.7(2.11)
53.7(2.11)

32.8(1.29)

65.6(2.58)

28.4(1.12)

31.8(1.25) 14.5(0.57) 51.9(2.04) 56.8(2.24)

27.8(1.09)

55.6(2.18)

28.4(1.12) 32.8(1.29)

61.2(2.41)

28.4(1.12) 27.8(1.09)

56.2(2.21)

All dimensions shown are for reference only and are subject to change. Dimensions with DK-Lok nuts are in finger-tight position.

Rupture disc prevent overpressure ofsample cylinder or other pot by ejecting
the cylinder fluid to atmosphere.
Ordering
NumberNominal Burst
Pressure at 70°F(20°C)

RD2

1900 psig ± 100 psig
130 bar ± 6.8 bar

L

28.5(1.12) 8.50(0.33) 48.5(1.91) 55.8(2.20)

25.0(0.98) 28.7(1.13)

3/8" DK-Lok

3/8" Male NPTASour Gas Valves

Valves for use in sour gas are available. Valve wetted
components are selected to the requirements of NACE
MR0175 for sulfide stress cracking resistant materials.
To order, insert -SG in the basic ordering number.

2850 psig ± 150 psig
196 bar ± 10.3 bar

RD1

How to order
VS13B-MF4N-

-A

-PK

-BC

-RD1

-S

Valve Pattern
Designator

Stem tip Material
DesignatorO-ring Material
Designator

Rupture Disc
Designator

Valve Material
Designator

Nil : Inline
A : Angle

Nil : PCTFE
PA : PEEK

Nil : FKM
BC : Buna C
N : NBR
EP : EPDM
SI : Silicon

RD1 : 2850 psig
RD2 : 1900 psig

S : SS316
M : Alloy 400
B : Brass

Safe Valve Selection

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 responsibilityof the system designer and the user. DK-Lok accepts no liability for any improper selection, installation, operation or maintenance.

www.dklok.com

All dimensions are in millimeters unless otherwise specified and only for reference subject to change.

2경상남도 김해시 주촌면 골든루트로 129번길 7 50969
7, Golden root-ro 129beon-gil, Juchon-myeon, Gimhae-si, Gyeongsangnam-do, South Korea. 50969
Tel. +82-55-338-0114 Fax. +82-55-901-0141 www.dklok.com