V16 Series Severe Service
Union Bonnet Valves

Catalog No. V16-5
June 2009

Pressure Rating up to 6000psig (413 bar)

Features● Pressure up to 6000 psig (413 bar) @ 100°F (38 °C).
● High Temperatures up to 449°F (232C) with standard PTFE packing; up to 1200°F (648°C) with Grafoil packing.
● Standard 316 stainless steel, optional Alloy 20, 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 SS316 bar 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
1. Bar handle
2. Set screw
3. Packing bolt
4. Cap nut
5. Bonnet
6. Gland
7. Packing (2)8. Packing supports (2)9. Stem
10. Standard globe disc,
optional globe ball &regulating disc.
11. Panel nut
12. Union nut
13. Body

Valve Body Materials
Alloy 20
Alloy C276
Material Grade/ASTM Specification
SS316/A276, optional anodized aluminum handle
Grade B8 TYPE 304/A193
SS316/A276 or A479
SS316/A276 or A479
SS316/A276 or A479
Alloy 20/B473
C276/B574
SS316/A276 or A479
Alloy 20/B473
C276/B574
PTFE/D1710, optional PEEK & Grafoil
Alloy 20/B473
C276/B574
SS316/A276 or A479
Hard Chrome-plated
Alloy 20/B473
C276/B574
SS316/A276 or A479
SS316

TYPE630/A564

Alloy 20/B473

C276/B574

SS316/A276 or A479

SS316/A276 or A479
SS316/A276 or A479
Alloy 20/B473

C276/B574

Wetted parts and lubricants are listed in blue.
Lubrication:● Nickel anti-seize lubricant (hydrocarbon carrier).
● Ball disc: hydrocarbon-based.

Technical Data
Ratings below are for valves with standard PTFE packing. Refer to valve ratings with optional packing on Page 3.

Valve
Material

Stem Disc
Designator

Temperature
Rating °F (°C)

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

SS316
Alloy 20
Alloy C276

Globe: Nil.
Regulating: -R
Ball: -B

-65 to 449(-53 to 232)

6000 psig (413 bar)Regulating Disc
Globe Disc

Ball Disc

Factory Test and Cleaning● Every valve is tested with the nitrogen gas @ 1000 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 pure water at 1.5 times the working pressure.
Every valve is cleaned and packaged in accordance with DK Tech cleaning standard DC-01.

Union Bonnet Valves

V16 Series

Ordering Information and Dimensions
H

In-line pattern
H

G
PANEL
HOLE DRILL

Panel Thickness:
Min. 1.59 mm (0.06 in.)Max.9.52 mm (0.37 in.)

(OPEN)

Socket weld end
G
PANEL
HOLE DRILL

D1

B 2

D

B1

(OPEN)

Panel Thickness:
Min. 1.59 mm (0.06 in.)Max.9.52 mm (0.37 in.)

A1

B

F

L1

L1
L

Basic
Ordering
Number

V16A-

V16B-

End Connections Orifice
Cv
Cv
Inlet Outlet mm (in.)

L

L1

L2

B

C

C

Dimensions

mm (inch)

B1

A1

B2

L2

A2

H

D

D1

F

1/8 Female NPT

50.8(2.00) 25.4(1.00) 22.6(0.89) 25.4(1.00) 32.3(1.27) 27.7(1.09) 32.5(1.28) 9.7(0.38)

9.7(0.38)

44.4(1.75) 15.1(19/32) 77.2(3.04) 82.0(3.23)

-

F4N-

1/4 Female NPT

52.3(2.06) 26.2(1.03) 22.6(0.89) 25.4(1.00) 32.3(1.27) 27.7(1.09) 32.5(1.28) 9.9(0.39)

9.7(0.38)

44.4(1.75) 15.1(19/32) 77.2(3.04) 82.0(3.23)

-

M4N-

1/4 Male NPT

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) 9.7(0.38)

9.7(0.38)

44.4(1.75) 15.1(19/32) 77.2(3.04) 77.2(3.04)

-

MF4N-

1/4 Male to Female NPT

9.7(0.38)

44.4(1.75) 15.1(19/32) 77.2(3.04) 82.0(3.23)

-

D6M-

6mm Dk-Lok

51.6(2.03) 26.2(1.03) 22.6(0.89) 25.4(1.00) 32.3(1.27) 27.7(1.09) 32.5(1.28) 9.9(0.39)
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) 9.7(0.38)

9.7(0.38)

44.4(1.75) 15.1(19/32) 77.2(3.04) 77.2(3.04)

-

D4T-

1/4 Dk-Lok

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) 9.7(0.38)

9.7(0.38)

44.4(1.75) 15.1(19/32) 77.2(3.04) 77.2(3.04)

-

SW4T-

1/4 TSW

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) 9.7(0.38)

9.7(0.38)

44.4(1.75) 15.1(19/32) 77.2(3.04) 77.2(3.04) 7.1(0.28)

D8M-

8 mm Dk-Lok

61.0(2.40) 30.5(1.20)

F4N-

1/4 Female NPT

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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 97.0(3.82)

-

F6N-

3/8 Female NPT

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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 97.0(3.82)

-

D10M-

10mm Dk-Lok

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) 63.5(2.50) 19.8(25/32) 93.7(3.69) 94.2(3.71)

-

D6T-

3/8 Dk-Lok

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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 90.7(3.57)

-

D12M-

12mm Dk-Lok

D8T-

1/2 Dk-Lok

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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 94.0(3.70)

SW4P-

1/4 PSW

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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 97.0(3.82) 9.7(0.38)

SW6T-

3/8 TSW

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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 94.0(3.70) 7.9(0.31)

SW8T-

1/2 TSW

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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 95.5(3.76) 9.7(0.38)

F8N-

1/2 Female NPT

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) 88.9(3.50) 26.2(1-1/32) 121(4.78) 126(4.97)

-

F12N-

3/4 Female NPT

82.6(3.25) 41.1(1.62)

-

-

-

48.5(1.91)-

19.8(0.78)-

88.9(3.50) 26.2(1-1/32) 124(4.88)

-

-

F16N-

1" Female NPT

91.9(3.62) 46.0(1.81)

-

-

-

54.1(2.13)-

25.4(1.00)-

88.9(3.50) 26.2(1-1/32) 129(5.10)

-

-

MF8N-

1/2 Male to Female NPT

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) 88.9(3.50) 26.2(1-1/32) 121(4.78) 126(4.97)-

MF12N- 3/4 Male to Female NPT

82.6(3.25) 41.1(1.62)

-

-

-

48.5(1.91)-

19.8(0.78)-

88.9(3.50) 26.2(1-1/32) 124(4.88)--

Male to Female NPT

91.9(3.62) 46.0(1.81)

-

-

-

54.1(2.13)-

25.4(1.00)-

88.9(3.50) 26.2(1-1/32) 129(5.10)

-

-

-

-

-

27.7(1.09)-

9.7(0.38)-

44.4(1.75) 15.1(19/32) 77.2(3.04)-

6.4
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) 63.5(2.50) 19.8(25/32) 94.0(3.70) 94.0(3.70)(0.25)

11.1(0.437) 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) 47.8(1.88) 15.7(0.62) 17.5(0.69) 88.9(3.50) 26.2(1-1/32) 121(4.78) 123(4.85)

-

-

D12M-

Dk-Lok 12mm

D8T-

1/2 Dk-Lok

99.6(3.92) 49.8(1.96) 42.7(1.68) 52.8(2.08) 60.2(2.37) 46.2(1.82) 47.8(1.88) 15.7(0.62) 17.5(0.69) 88.9(3.50) 26.2(1-1/32) 121(4.78) 123(4.85)

-

D12T-

3/4 Dk-Lok

99.6(3.92) 49.8(1.96) 42.7(1.68) 52.8(2.08) 60.2(2.37) 46.2(1.82) 47.8(1.88) 15.7(0.62) 17.5(0.69) 88.9(3.50) 26.2(1-1/32) 121(4.78) 123(4.85)

-

D16T-

1 Dk-Lok

104(4.09) 51.8(2.04)

88.9(3.50) 26.2(1-1/32) 121(4.78) 123(4.85)

-

SW8P-

1/2 PSW

79.2(3.12) 39.6(1.56) 33.3(1.31) 39.6(1.56) 50.8(2.00) 47.8(1.88) 50.8(2.00) 17.5(0.69) 17.5(0.69) 88.9(3.50) 26.2(1-1/32) 123(4.85) 126(4.97)

9.7(0.38)

SW8T-

1/2 TSW

79.2(3.12) 39.6(1.56) 33.3(1.31) 42.9(1.69) 50.8(2.00) 46.2(1.82) 47.8(1.88) 15.7(0.62) 17.5(0.69) 88.9(3.50) 26.2(1-1/32) 121(4.78) 123(4.85)

9.7(0.38)

SW12T-

3/4 TSW

79.2(3.12) 39.6(1.56)

11.2(0.44)

-

-

-

-

-

-

47.8(1.88)

46.2(1.82)--

17.5(0.69)

15.7(0.62)--

88.9(3.50) 26.2(1-1/32) 121(4.78)

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 3.

2

G

F2N-

MF16N-

V16C-

A2

Angle patternⓒ 2003-2008, DK Tech Corporation, All Right Reserved.

--

Union Bonnet Valves

V16 Series

Pressure-Temperature Ratings
Ratings are based on valves with optional Grafoil packing.
ASME Class
Material Group
Material Name

2.2
SS316

Temperature, °F (°C)
-65 to 100 (-53 to 38)
200 (93)300 (148)
400 (204)500 (260)600 (315)
700 (371)
800 (426)
900 (482)
1000 (537)1100 (593)1200 (648)6000 (413)5160 (355)4660 (321)4280 (294)3980 (274)3760 (259)3620 (249)3520 (242)3460 (238)3030 (208)2545 (175)
1545 (106)

Grafoil packing information

2500
3.1
3.8
Alloy 20
C276
Working pressure, psig (bar)6000 (413)6000 (413)6000 (413)6000 (413)5920 (408)6000 (413)5680 (391)5820 (401)5460 (376)5540 (381)5040 (347)5040 (347)4730 (326)4730 (326)4230 (291)4230 (291)3745 (258)3030 (208)2685 (185)1715 (118)

Valve ratings with optional PEEK packing

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
1200°F (648° C). Grafoil packing is not for use withpneumatic 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 ratingwith 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 notbeen actuated for a period of time may have a higher
initial actuation torque.

SS316, Alloy 20, and C276 valve with PEEK packing is limited to a maximum 600 °F (315 °C) rating.

NUMBER OF TURNS OPEN

Flow Data @ 100°F (38°C) for valves with regulating disc
Globe and Ball Disc

4

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.

V16A series

3

V16B series

V16C series

2

Cv reduction

1
0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

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

1.8

FLOW COEFFICIENT (Cv)

Sour 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.

Optional Handles
SS316 bar handle is standard. Optional anodized black
aluminum bar handle is available. To order valve withfactory-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.

Ordering Information

V16A
V16B
V16C

Field Assembly Bar Handle

SS316
V16A-BH
V16B-BH
V16C-BH

Aluminum
V16A-AH
V16B-AH
V16C-AH

Select the desired valve basic ordering number, options and body material.

V16B-D-6TV16C-MF-12N-

A

-PK
GF

-B

Valve Pattern
Designator

Packing Material
Designator-Nill: In-line-A: Angle-Nill: PTFE
-PK: PEEK-GF: Grafoil*※ Grafoil TM UCAR

Valve
Series

-BD
-AH

-SG

-S

Stem Disc
Designator

HandleDesignator

Sour Gas
Designator

Pneumatic Double
Acting Actuator

Valve Material
Designator-Nil: Globe-R: Regulating-B: Ball

-Nill: SS316 bar handle-AH: Aluminum Bar
handle-Nill: no Sour Gas-SG: Sour Gas

AD: V16A series valves
BD: V16B series valves-S: SS316-L20: Alloy 20-HC: Alloy C276

We reserve the right to change the specifications stated in this catalog for our continuing 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 systemdesigner and the user. Dk Tech accepts no liability for any improper selection, installation, operation or maintenance.
3

Union Bonnet Valves

V16 Series

Double Acting Pneumatic Actuator
V16 series Pneumatic actuators are designed to actuate valves remotely. V16A and V16B series are available to be equipped with pneumatic
actuators in double acting.

Double Acting Dimensions
Valve
Series
V16A
V16B

Dimensions
A
4.22 (107)4.47 (114)H
5.91 (150)
6.22 (158)in. (mm)D
3.25 (82.6)
4.25 (108)C
3.25 (82.6)
3.81 (96.8)

B
1.12 (28.4)
1.19 (30.2)

All dimensions are reference only and subject to change.

Double Acting Actuator Technical Data
Maximum applicable pressure

Temperature ratings°F ( °C)

150 psig (10.4 bar)

-20 to 300 (-28 to 204)

Pneumatic Actuator Applicability
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.

Operation Information
Curve 1 and 2 indicate the minimum actuator pressure to open or close double acting actuator 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.

Curve 2

V16A series with Double Acting Actuator -AD

V16B series with Double Acting Actuator - BD

100

System Pressure, bar
150 200 250 300

350

8

400
150

V16A Series
with PEEK Packing

100
6
V16A Series
with PTFE Packing

4

50
2
0

1,000

2,000

3,000

4,000

5,000

50
Minimum Actuator Pressure, bar

Minimum Actuator Pressure, bar

50
10Minimum Actuator Pressure, psig

Curve 1100

System Pressure, bar
150 200 250 300

350

10
8

400
150

V16B Series
with PEEK Packing

100
6
V16B Series
with PTFE Packing

4

50
2
0

6,000

1,000

2,000

3,000

4,000

5,000

Minimum Actuator Pressure, psig

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 thestem. 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.

6,000

System Pressure, psig

System Pressure, psig

Actuator Ordering Information

Valve Series

Double Acting
Designator

V16A

AD

V16B

BD

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-Saeaea