V23 Series Plug Valves
Pressure Rating up to 3000 psig (206 bar)

Catalog No. V23-2
June 2008Features
ƃ Quarter-turn operation

ƃ Unique forward flow throttlingƃ Low torque operation

ƃ Unidirectional flow

Materials of Construction
Valve Body Materials

Component

Stainless Steel

Brass

Grade/ASTM Specification
1. Body

SS316/ A479 or A276

Brass / B16

2. Plug

PTFE-coatedSS316/ A479 or A276

PTFE-coated
Brass / B16

3. O-ring

PTFE-coated FKM

4. Handle

Nylon

5. PinSS316/A276

6. Snap ring

Stainless Steelž Wetted parts and lubricants listed in blue

Technical DataSeries
V23A
V23B

Valve
Material
SS316
BrassSS316
Brassž Lubricant is silicone-based

Pressure - Temperature Curves

Pressure Rating
psigbar

3000

206

2000

137

TemperatureRating

Plug Orificemm (in.)-10 to 400 °F(-23 to 204 °C)

with standard FKM O-ring

4.4 (.17)
7.2 (.28)

ž Differential pressure is limited to maximum 150 psig (10.3bar)when reverse flow occurs.

ž Throttling reverse flow may damage O-ring.

Operation
ž D-pro plug valves provide positive shut-off, high flow capacity, andquick quarter-turn operation.

ž D-pro plug valve provides flow throttling capability.

Ordering Information and Dimensions
Basic Ordering
NumberEnd Connections
InletOutletA

B

Dimensions mm (inches)
CDEFGH

D-2T50.5 (1.99)
1/8 in. Dk-Lok
D-4T55.1 (2.17)
1/4 in. Dk-Lok
D-6T58.2 (2.29)
3/8 in. Dk-Lok
D-6M55.1 (2.17)
6mm Dk-Lok
M-2N38.9 (1.53)
1/8 in. Male NPT
47.8
38.6
29.0
9.4
11.7
19.1
19.8
V23A- M-4N48.3 (1.90)
1/4 in. Male NPT(0.78) (1.88) (1.52) (1.14) (0.37) (0.46) (0.75)
MD-4N4T- 1/4 in. Male NPT 1/4 in. Dk-Lok 51.2 (2.03)
1/4 in. Male NPT 1/4 in. female NPT 50.8 (2.00)
MF-4NF-2N45.2 (1.78)
1/8 in. Female NPT
F-4N53.1 (2.09)
1/4 in. Female NPT
F-4R56.1 (2.21)
1/4 in. Female ISO tapered
D-6T67.6 (2.66)
3/8 in. Dk-Lok
D-8T73.2 (2.88)
1/2 in. Dk-Lok
D-8M67.6 (2.66)
8mm Dk-Lok
D-10M68.1 (2.68)10mm Dk-Lok
14.2
28.4
63.2
54.1
38.1
16.8
29.0
V23B- D-12M75.2 (2.96) (1.14) (2.49) (2.13) (1.50) (0.56) (0.66) (1.12)12mm Dk-Lok
M-8N67.1 (2.64)
1/2 in. Male NPT
F-6N60.5 (2.38)
3/8 in. Female NPT
F-8N73.2 (2.88)
1/2 in. Female NPT
F-8R79.8 (3.14)
1/2 in. ISO Female Tapered
All dimensions shown are for reference only and are subject to change. Dimensions with Dk-Lok nuts are in finger-tight position.

ʡ Copyright 2004, 2008. Dk Tech Corporation. ALL Rights Reserved.

Plug Valves

V23 Series

Factory Testž Every V23 series plug valve is factory tested for shutoff at 600psig (41.3 bar).

Optional Downstream Vent

Optional O-ring material

Vent to atmosphere when valve is closedvalve open

PTFE-coated FKM is standard. Choose optional O-ring material for
fluid compatibility and system temperatures.
O-ring material
O-ring Designator
Temperature Range
EV
Standard PTFE-coated FKM-20 to 400 °F (-28 to 204 °C)
EB
PTFE-coated Buna-N-68 to 221 °F (-20 to 105 °C)
EE
PTFE-coated EPDM
-49 to 275 °F (-45 to 135 °C)

Optional vented plug and valve body provides system pressure release
to atmosphere when valve is closed.
ž This option reduces the maximum operation pressure to 150 psig (10.3 bar).
ž To order, use designator - VH. See how to order.

Flow Data
End Connections

Basic Ordering
Number
D-2TD-4TD-6TD-6MM-2NV23A- M-4NMD-4N4TMF-4NF-2NF-4NF-4RD-6TD-8TD-8MD-10MV23B- D-12MM-8NF-6NF-8NF-8R-Inlet

Outlet1/8 in. Dk-Lok
1/4 in. Dk-Lok
3/8 in. Dk-Lok
6mm Dk-Lok
1/8 in. Male NPT
1/4 in. Male NPT
1/4 in. Dk-Lok
1/4 in. Male NPT
1/4 in. Male NPT 1/4 in. female NPT
1/8 in. Female NPT
1/4 in. Female NPT
1/4 in.Female ISO tapered
3/8 in. Dk-Lok
1/2 in. Dk-Lok
8mm Dk-Lok
10mm Dk-Lok
12mm Dk-Lok
1/2 in. Male NPT
3/8 in. Female NPT
1/2 in. Female NPT
1/2 in. ISO Female Tapered

Cv

Pressure Drop to Atmosphere, psi (bar)
Air Flow, std ft3/min (L/min)
Water Flow, US gal/min(L/min)@70 °F (21 °C)

0.1
1.6
1.1
1.6

1 (0.068)
0.3 (8.4)
6.0 (169)
4.1 (116)
6.0 (169)

5 (0.34)
0.8 (22)
13 (368)
8.9 (252)
13 (368)

10 (0.68)
1.1 (31)
18 (509)12.4 (351)
18 (509)

1 (0.068)
0.1 (0.37)
1.6 (6.0)
1.1 (4.1)
1.6 (6.0)

5 (0.34)0.2 (0.75)
3.6 (13.6)
2.5 (9.4)
3.6 (13.6)

10 (0.68)
0.3 (1.1)
5.1 (19.3)
3.5 (13.2)
5.1 (19.3)

1.0

3.7 (104)

8.1 (229)

11.3 (320)

1.0 (3.7)

2.2 (8.3)

3.2 (12.1)

0.9
1.0
1.2

3.3 (93)
3.7 (104)
4.4 (124)

7.3 (206)
8.1 (229)
9.7 (274)

10.1 (286)11.3 (320)13.5 (382)

0.9 (3.4)
1.0 (3.7)
1.2 (4.5)

2.0 (7.5)
2.2 (8.3)
2.7 (10.2)

2.8 (10.8)
3.2 (12.1)
3.8 (14.3)

0.9

3.3 (93)

7.3 (206)10.1 (286)

0.9 (3.4)

2.0 (7.5)

2.8 (10.8)

6.4
4.4

23.9 (676)
16.4 (464)52.0 (1470)
35.7 (1010)

72.3 (2040)
49.7 (1400)

6.4 (24.2)
4.4 (16.6)

14.3 (54.1)
9.8 (37.0)

20.2 (76.4)
13.9 (52.6)

6.4

23.9 (676)52.0 (1470)

72.3 (2040)

6.4 (24.2)

14.3 (54.1)

20.2 (76.4)

4.8
2.4
4.3

17.9 (506)
9.0 (254)
16.0 (453)39.0 (1100)
19.5 (552)34.9 (988)54.2 (1530)
27.1 (767)48.6 (1370)

4.8 (18.1)
2.4 (9.0)
4.3 (16.2)

10.7 (40.4)
5.4 (20.4)
9.6 (36.3)

15.2 (57.5)
7.6 (28.7)
13.6 (51.4)

2.7

10.1 (286)21.9 (620)30.5 (863)

2.7 (10.2)

6.0 (22.7)

8.5 (32.1)

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

V23A-D-4TV23B-F-8N--EB-VH--B

S

O-ring Material DesignatorDownstream Vent Option

Body Material Designatorҭ Nil : PTFE-coated Viton
ҭ EB : PTFE-coated Buna-N
ҭ EE : PTFE-coated EPDM

ҭ Nil : no vent
ҭ VH : Vent

ҭ S : SS316
ҭ B : Brass

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.