V81 Series Ball Valve
Pressures rating of 68.9 bar (1000 psig) and 137 bar (2000 psig)

Valve with butterfly handle
Working pressure● PTFE seats: 68.9 bar (1000 psig)● TFM seats not applicable

Valve with lever handle
Working pressure● PTFE seats: 68.9 bar (1000 psig)● TFM seats: 137 bar (2000 psig)

Catalog No. V81-6
July. 2012

Valve with dielectric handle
Working pressure● PTFE seats: 68.9 bar (1000 psig)● TFM seats: 137 bar (2000 psig)

Design Features

Applications● Compact barstock construction for high integrity● Blow-out proof design with internally loaded stem
● Floating Ball design providing seat wear compensation● Micro-finished ball ensures a leak-tight shut-off on pressure● Standard lever handle, optional butterfly and dielectric handle.

V81 series ball valve offers a safe and reliable performance for a wide
range of onshore and offshore applications: water, oil, gas,petrochemical and general duty applications.

Materials of Construction
11B

12Component
11C

1. Body
2. Ball
3. Seat (2)

11A
10
98

7
6
2

134
5

13

14

5-1

15

4. O-Ring
5. End Connector
5-1. Insert
6. Stem
7. Lower Packing
8. Upper Packing
9. Gland10. Washer
11A. Handle
11B. Handle
11C. Handle
12. Lock Nut
13. Front Ferrule
14. Backing Ferrule
15. Nut

Valve Body Materials
Stainless Steel
Brass
ASTM A276 / A479 TYPE316
ASTM B16 or JIS H3250
ASTM A276 TYPE316
PTFE / D1710 for pressure 68.9 bar (1000 psig)
TFM 1600 for pressure 137 bar (2000 psig)
FKM

NBR

ASTM A276/A479 TYPE316

ASTM B16 or JIS H3250

ASTM A276/A479 TYPE316
PTFE / D1710
PTFE / D1710
ASTM A276/A479 TYPE316
Stainless SteelStainless Steel Lever handle with vinyle sleeve
ZINC / ASTM B240 Butterfly handle, Nickel-plated
Dielectric Handle with Nylon(Black, Red, Blue)
Stainless SteelStainless SteelASTM A276/A479 TYPE316
ASTM B16 or JIS H3250
ASTM A276/A479 TYPE316
ASTM B16 or JIS H3250
ASTM A276/A479 TYPE316
ASTM B16 or JIS H3250

1. V81D, V81E Locking device lever handle Type : Body Material is ASTM A351 CF8M
4. O-Ring is applicable to DK-LOK end connection 5. End Connector is for DK-LOK end connection
5-1. Insert is for Pipe Thread end connection* TFM 1600 seat is usable only with body in stainless steel.
* Wetted parts are listed in Blue.

Pressure -Temperature Curves

TFM 1600 Seat

Body Material: Stainless

PTFE Seat

Body Material: Stainless and Brass

Ball Valves
AA

Male Pipe Thread toFemale Pipe Thread
Lever Handle

HHEXLLL
A1Female Pipe Thread toFemale Pipe Thread
Butterfly Handle

HHEXHAFemale Pipe Thread toFemale Pipe Thread
Lever Handle

HEX

DK-LOK to DK-LOK
Lever Handle

V81 Series

A2

Weld End to Female Pipe Thread
Dielectric HandleA

DK-LOK to DK-LOK
Locking device Lever Handle
H2HHEXHEX

H1LL

Ordering Information and Table of Dimensions
End Connection
Inlet / Outlet

Basic Ordering
Number

V81A-

V81B-

V81C-

V81D-

V81E-

D-6M
D-4T
F-4N
MF-4N
D-10M
D-6T
F-6N
MF-6N
D-12M
D-8T
F-8N
MF-8N
WF-15A8N
D-16M
D-10T
F-12N
D-12T
MF-12NWF-20A12N
D-16T
F-16N
WF-25A16N

6mm DK-LOK
1/4 in. DK-LOK
1/4 in. Female NPT
1/4 in. M/F NPT
10mm DK-LOK
3/8 in. DK-LOK
3/8 in. Female NPT
3/8 in. M/F NPT
12mm DK-LOK
1/2 in. DK-LOK
1/2 in. Female NPT
1/2 in. M/F-NPT
1/2 in. Welding/F-NPT
16mm DK-LOK
5/8 in. DK-LOK
3/4 in. Female NPT
3/4 in. DK-LOK
3/4 in. M/F-NPT
3/4 in. Welding/F-NPT
1 in. DK-LOK
1 in. Female NPT
1 in. Welding/F-NPTOrifice
mm (in.)5(0.2)

7.5(0.3)9(0.35)12.5(0.49)

16(0.63)

Cv
1.25
1.25
1.35
1.35
2.6
2.5
2.6
2.6
9.25
9.25
9.25
9.25
9.25
10.6
10.6
12.65
12.65
12.65
12.65
17.35
17.35
17.35

Dimensions,L
79 (3.11)
79 (3.11)
41.9 (1.65)
52.4 (2.06)
91.7 (3.61)
91.3 (3.59)
47 (1.85)
53.5 (2.1)
99.2 (3.9)
101 (3.98)
56.15 (2.21)
66.6 (2.62)
95.0 (3.74)
107 (4.24)
108 (4.25)
63 (2.48)
107 (4.22)
75.9 (2.99)
100 (3.93)
133 (5.23)
78.1 (3.07)
115 (4.53)mm (in.)HHEXA

A1A2H1H2

27.56(1.08)

17(11/16)

59.5(2.34)

30.5(1.20)

41.8(1.65)

23.5(0.93)

33.8(1.33)

36.47(1.32)

20.64(13/16)81(3.19)42(1.65)44.5(1.75)

30(1.18)38.3(1.5)

39.7
2781
(1.56) (1-1/16) (3.19)

46(1.81)

46.5(1.83)

35.7(1.41)

43.5(1.71)

44.85(1.76)

32(1-1/4)102.5(4.04)

49.5(1.95)

56
(2.2)

38.1
(1.50)

47.2(1.86)

49.75(1.95)

38(1-1/2)102.5(4.04)

68(2.68)

70.1(2.76)

45(1.77)

53.7(2.11)

Dimensions shown are for reference only, subject to change. Dimensions with DK-LOK nuts are in finger-tight position

Factory Test
Every valve is factory tested with nitrogen gas @41 bar (600 psig) for leakage at the seat to a maximum allowable leak rate of 0.1 SCCM. The
packing is tested with nitrogen for no detectable leakage.

How to order
Select valve ordering number, applicable option(s) from designator tables listed below.
ExamplesV81A-D-6MVTTFBFO-ring

Seat MaterialHandle● Nil: FKM O-ring is standard
for SS316 body.
● Nil: NBR O-ring is standard
for Brass body.
● VT: FKM O-ring for Brass body
● BN: NBR O-ring for Stainless SteelNOTE:O-ring is required for DK-LOK endconnection.

● Nil: Standard PTFE seats for 68.9 bar(1000 psig) working pressure.
● TF: Optional TFM1600 for 137 bar(2000 psig) working pressure.

● Nil: Standard lever handle● BF: Optional butterfly handle● DH: Dielectric handle● LD: Locking device lever handle

NOTE:TFM1600 seat is not applicable to Brassvalve.

NOTE:
BF option is not applicable to the valve
with TF seats.

BKSHandle Color

Body material● BK: Black● BL: Blue● RD: Red● S: S316● B: Brass● M: Monel● L20:Alloy 20● HC:Hastelloy
C276

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 responsibillty of the system designer and theuser. Dk Tech accepts no liability for any improper selection, installation, operation or maintenance.