V81 Series Ball Valves

Rev. 01-01
Aug. 2023

Ball & Plug Valves

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

Design Features

V81 Series Ball Valve

Rev.01-01
Aug.2023

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• 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.

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

Applications

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
Component

1. Body
2. Ball

3. Seat (2)4. O-Ring

5. End Connector
5-1. Insert
6. Stem7. Lower Packing

8. Upper Packing
9. Gland10. Washer

11A. Handle

Stainless steel

Valve Body Materials

Brass

ASTM A276 / A479 TYPE316

ASTM B16 or JIS H3250

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
PTFE / D1710

PTFE / D1710

ASTM A276/A479 TYPE316
Stainless SteelStainless Steel Lever handle with vinyle sleeve

11B. Handle

ZINC / ASTM B240 Butterfly handle, Nickel-plated

12. Lock Nut

Stainless Steel

11C. Handle

Dielectric Handle with Nylon(Black, Red, Blue)

Stainless Steel

13. Front Ferrule

ASTM A276/A479 TYPE316

ASTM B16 or JIS H3250

15. Nut

ASTM A276/A479 TYPE316

ASTM B16 or JIS H3250

14. Backing Ferrule

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 end connector type.
5. End Connector is for DK-Lok end connection standard, male pipe thread available.
5-1. Insert is for female 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: Stainless1

Factory Test

Every valve is factory tested with nitrogengas @41 bar (600 psig) for leakage at theseat to a maximum allowable leak rate of
0.1 SCCM.
The packing is tested with nitrogen for nodetectable leakage.

PTFE Seat Body Material: Stainless and BrassAll dimensions are in millimeters unless otherwise specified and only for reference subject to change.

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DK-Lok to DK-Lok
Lever Handle

Male Pipe Thread toFemale Pipe Thread
Lever Handle

Female Pipe Thread toFemale Pipe Thread
Lever Handle

Female Pipe Thread toFemale Pipe Thread
Butterfly Handle

Weld End to Female Pipe Thread
Dielectric Handle

DK-Lok to DK-Lok
Locking device Lever Handle

Ordering Information and Table of Dimensions
Basic Ordering
Number

V81A-

V81B-

V81C-

D-6M-

6mm DK-Lok

D-4T-

1/4 in.DK-Lok

MF-4N-

1/4 in. M/F NPT

F-4N-

1/4 in. Female NPT

D-10M-

10mmDK-Lok

D-6T-

3/8 in.DK-Lok

F-6N-

3/8 in. Female NPT

MF-6N-

3/8 in. M/F NPT

D-12M-

12mmDK-Lok

F-8N-

1/2 in. Female NPT

D-8T-

MF-8N-

1/2 in.DK-Lok

1/2 in.M/F-NPT

Orifice
mm (in.)5 (0.2)

7.5 (0.3)

9 (0.35)

V81F-

V81G-

V81H-

H

HEX

A

79 (3.11)

27.6(1.09)

17(11/16)

59.5(2.34)

30.5(1.20)

36.5(1.44)

20.64(13/16)

81(3.19)39.7(1.56)

27(1-1/16)

44.85(1.76)

49.75(1.95)

79 (3.11)

1.35

41.9 (1.65)

2.6

91.7 (3.61)

2.647 (1.85)

1.25

1.35

52.4 (2.06)

2.5

91.3 (3.59)

2.6

53.5 (2.1)

9.25

101 (3.98)

99.2 (3.9)

9.25

56.15 (2.21)

9.25

66.6 (2.62)

1/2 in.Welding/F-NPT

9.25

95.0 (3.74)

D-10T-

5/8 in.DK-Lok

10.6

108 (4.25)

D-12T-

3/4 in.DK-Lok

12.65

107 (4.22)

F-12N-

MF-12N-

10.6

16mmDK-Lok

3/4 in.Female NPT

3/4 in.M/F-NPT

12.5 (0.49)

D-16T-

F-16N-

1 in.DK-Lok

16 (0.63)

1 1/4 in. Female NPT

21 (0.83)

2 in. Female NPT

32 (1.26)

WF-25A16N- 1 in. Welding/F-NPT
F-20N-

F-24N-

F-32N-

1 1/2 in.Female NPT

24 (0.94)

H1H2H341.8(1.65)

23.5(0.93)

33.8(1.33)

35.6(1.4)42(1.65)44.5(1.75)

30(1.18)38.3(1.5)

39.5(1.56)

81(3.19)

46(1.81)

46.5(1.83)

35.7(1.41)

43.5(1.71)

44.7(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)-

38(1-1/2)

102.5(4.04)

68(2.68)70.1(2.76)

45(1.77)

53.7(2.11)------107 (4.24)

12.65

63 (2.48)

12.65

75.9 (2.99)

12.65

1 in. Female NPT

Dimensions mm(in.)
A1A2L

1.25

9.25

WF-20A12N- 3/4 in.Welding/F-NPT

V81E-

Cv

WF-15A8ND-16M-

V81D-

End Connections
Inlet / Outlet

100 (3.93)

17.35

133 (5.23)

17.35

78.1 (3.07)-

89 (3.50)

17.35

115 (4.53)-

95 (3.74)-

110 (4.33)

65(2.56)
68(2.68)80(3.15)50(2)55(2-3/16)
69.8(2-3/4)141(5.55)
148(5.83)
154(6.06)

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

How to Order

Select valve ordering number, applicable option(s) from designator tables listed below.
ExamplesV81A-D-6M-

VT-O-ring

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.

TF-Seat Material

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

NOTE :TFM1600 seat is not applicable to Brassvalve.

BFHandle

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

NOTE :
BF option is not applicable to thevalve with TF seat

BKHandle Color

BK : BlackBL : BlueRD : RedSBody material

S : SS316
B : Brass
M : Monel
L20 : Alloy 20
HC : HastelloyC276

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

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Tel. +82-55-338-0114 Fax. +82-55-901-0141 www.dklok.com