Product Made In Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: VTF Series
View Item
◆Features
1.Wide range applications from ultra high vacuum to high pressure, lower and higher temperature through metal gasket seal.
2.Spacing when install and uninstall can be minimized.
3.As the nut thread is silver plated and lubricated, tightening torque is reduced and also free from galling.
4.Thrust washer (VSTW) and thrust bearing (VTJR) are available for the protection from co-rotation of the tube when tightening female nut.
5.Material of the parts to be welded is SUS316 and is machined highly accurate.
6.For customers demanding high purity and ultra-high performance fittings, we offer products that come standard with W melt (VIM+VAR) materials, double melt material with almost no non-metallic inclusion and vey low impurities such as Mn.
7.After the precision cleaning, protect seal surface of the fitting and vacuum packed one by one inside clean room.
8.Identification label showing product type, part symbol, inner roughness etc. is put on each product package.
◆Specification of Fitting
Part No |
Material |
Gland
Tube butt weld Connector
Tube butt weld Elbow
Tube butt weld Tee |
SUS316L
Single melt material
Double melt material |
Tube butt weld Connector
Connector, Union
Coupling, Adapter
Elbow, Tee, Cross
Nut, Plug |
SUS316 |
Gasket / Holder |
Ni, SUS316LW double melted / SUS316 |
Thrust Washer |
Metal mesh + Fluorine resin |
Thrust Bearing |
SUS304 • SUS440C |
Working Pressure
Condition |
Pressure |
Vacuum |
VAC ~ 0 Pa |
Positive |
0 ~ 20.6 Mpa |
As the temperature rises, allowable service pressure may decrease.
Working Temperature Range
Component |
Temperature Range |
Gland, etc. |
-269 ~ 450℃ |
Connector, etc. |
-253 ~ 450℃ |
Gasket Ni |
-196 ~ 315℃ |
Gasket SUS316L |
-269 ~ 450℃ |
Thrust Washer |
-196 ~ 180℃ |
Thrust Bearing |
-196 ~ 350℃ |
◆Nomenclature
◆Types
To ensure that our customers are satisfied with the applications and cost performance of our products, we also offer the three types beyond our standard combination.
①Thrust bearing inserted type
Smooth tightening keeps tightening torque low for the female nut. Useful for preventing co-rotation with the gland, and minimal twisting during piping work.
②Compact (High flow) type
Very compact, but realized high flow.
Reference: Data of gland co-rotation (in-house test data)
Size |
Standard |
Thrust washer/bearing inserted |
|
Tightened 1/8 turn |
Tightened 1/6 turn |
1/4″ |
2° ~ 2°30′ |
0°18′ ~ 0°30′ |
1/2″ |
2°30′ ~ 3° |
0°30′ ~ 1° |
Any type of customized products are available, for instance, with less fittings and less welding.
Feel free to inquire your customized requirement.
Long Gland for Male Nut
VTF− GD
Part No |
Size of VTF |
Tube size (φA) |
Tube Thickness (t) |
φD |
φB |
L |
ℓ |
VTGD 2-2~※ |
1/8 |
3.18 |
0.72 |
1.74 |
5.1 |
17.8 |
7.1 |
VTGD 4-2~※ |
1/4 |
3.18 |
0.72 |
1.74 |
8.8 |
33.3 |
10.4 |
VTF-GD4-43A~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
43.2 |
19.05 |
VTF-GD4-43B~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
43.2 |
19.05 |
VTF-GD4-43C~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
43.2 |
19.1 |
VTGD 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
44.2 |
20.5 |
VTF-GDB-4-46C~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
45.7 |
19.1 |
VTGD 8-4~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
47.2 |
20.5 |
VTF-GDB-6-45A~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
45.5 |
19.05 |
VTF-GDB-6-45B~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
45.5 |
19.05 |
VTF-GDB-6-45C~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
45.5 |
19.1 |
VTGD 8-6~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
47.2 |
20.5 |
VTF-GDB-45A~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
45.5 |
19.05 |
VTF-GDB-45B~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
45.5 |
19.05 |
VTF-GDB-45C~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
45.5 |
19.1 |
VTGD 8-8~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
47.2 |
20.5 |
VTGD 8-8T~※ |
1/2 (3/8) |
12.7 |
1.0 |
10.7 |
15.1 |
47.2 |
20.5 |
VTGD 12-4~※ |
3/4 |
6.35 |
1.0 |
7.5 |
22.2 |
52.0 |
20.5 |
VTGD 12-6~※ |
3/4 |
9.53 |
1.0 |
7.5 |
22.2 |
52.0 |
20.5 |
VTGD 12-8~※ |
3/4 |
12.7 |
1.24 |
10.2 |
22.2 |
52.0 |
20.5 |
VTGD 12-12~※ |
3/4 |
19.05 |
1.65 |
15.75 |
22.2 |
52.0 |
20.5 |
VTGD-GD12-52B~※ |
3/4 |
19.05 |
1.24 |
16.57 |
22.2 |
51.6 |
19.05 |
VTGD 16-16~※ |
1 |
25.4 |
1.65 |
22.1 |
30.2 |
58.9 |
19.05 |
VTGM、VTGL
Part No |
Size of VTF |
Tube size (φA) |
Tube Thickness (t) |
φD |
φB |
L |
ℓ |
VTGM 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
30.5 |
6.35 |
VTGL 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
31.8 |
7.0 |
VTF-GM4-30C~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
30.5 |
6.4 |
VTF-GM4-33A~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
33.5 |
6.35 |
VTF-GM4-33C~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
33.5 |
9.7 |
VTF-GM8-4-37A~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
37.5 |
6.35 |
VTGM 8-6~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
32.8 |
6.35 |
VTGL 8-6~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
34.7 |
7.0 |
VTF-GM8-6-33C~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
32.8 |
6.4 |
VTF-GM8-6-37A~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
37.5 |
6.35 |
VTGM 8-8~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
32.8 |
6.35 |
VTGL 8-8~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
34.7 |
7.5 |
VTF-GM8-33C~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
32.8 |
6.4 |
VTF-GM8-30C~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
35.8 |
6.7 |
VTF-GM8-37A~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
37.5 |
6.35 |
VTGE、VTF−GE
Part No |
Size of VTF |
Tube size (φA) |
Thickness (t) |
φD |
φB |
L |
ℓ |
VTGE 2-2~※ |
1/8 |
3.18 |
0.72 |
1.74 |
5.1 |
12.2 |
7.1 |
VTF-GE2-27B~※ |
1/8 |
3.18 |
0.72 |
1.74 |
5.1 |
27.4 |
19.05 |
VTF-GE2-27C~※ |
1/8 |
3.18 |
0.72 |
1.74 |
5.1 |
27.4 |
19.1 |
VTGE 4-2~※ |
1/4 |
3.18 |
0.72 |
1.74 |
8.8 |
28.5 |
7.1 |
VTF-GE4-28A~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
28.5 |
7.1 |
VTF-GE4-28B~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
27.9 |
19.05 |
VTF-GE4-28C~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
27.9 |
19.1 |
VTGE 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
29.0 |
20.5 |
VTF-GE4-31A~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
31.0 |
19.05 |
VTGE 8-4~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
28.4 |
19.05 |
VTF-GE8-4-28B~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
28.4 |
19.05 |
VTF-GE8-4-28C~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
28.4 |
19.1 |
VTGE 8-6~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
30.0 |
20.5 |
VTF-GE8-6-28B~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
28.5 |
19.05 |
VTF-GE8-6-28C~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
28.5 |
19.1 |
VTGE 8-8~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
28.4 |
19.05 |
VTGE 8-8T~※ |
1/2 (3/8) |
12.7 |
1.0 |
10.7 |
15.1 |
28.5 |
19.1 |
VTGE 12-4~※ |
3/4 |
6.35 |
1.0 |
4.35 |
22.2 |
36.5 |
22.0 |
VTGE 12-6~※ |
3/4 |
9.53 |
1.0 |
7.5 |
22.2 |
36.5 |
22.0 |
VTGE 12-12~※ |
3/4 |
19.05 |
1.65 |
15.75 |
22.2 |
35.0 |
20.5 |
VTGE 12-12T~※ |
3/4 |
19.05 |
1.24 |
16.57 |
22.2 |
35.0 |
20.5 |
VTGE-GE12-30B~※ |
3/4 |
19.05 |
1.24 |
16.57 |
22.2 |
30.0 |
19.05 |
VTGE 16-16~※ |
1 |
25.4 |
1.65 |
22.1 |
30.2 |
40.0 |
19.05 |
VTGN、VTGT、VTF−GN
Part No |
Size of VTF |
Tube size (φA) |
Thickness (t) |
φD |
φB |
L |
ℓ |
VTF-GN2-12B~※ |
1/8 |
3.18 |
0.72 |
1.74 |
? |
12.2 |
7.0 |
VTGT 4-2~※ |
1/4 |
3.18 |
0.72 |
1.74 |
8.8 |
18.0 |
7.0 |
VTGN 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
15.2 |
6.35 |
VTGT 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
18.0 |
7.0 |
VTF-GN4-15C~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
15.2 |
6.4 |
VTF-GN4-18A~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
18.2 |
6.35 |
VTF-GN4-18C~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
18.3 |
9.7 |
VTGN 8-4~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
15.2 |
6.35 |
VTGT 8-4~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
20.1 |
7.0 |
VTGN 8-6~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
15.2 |
6.35 |
VTF-GN8-6-16C~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
15.7 |
6.4 |
VTGT 8-6~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
20.1 |
7.0 |
VTF-GN8-6-19A~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
19.3 |
6.35 |
VTGN 8-8~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
15.2 |
6.35 |
VTF-GN8-16C~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
15.7 |
6.4 |
VTF-GN8-19C~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
18.8 |
9.7 |
VTGT 8-8~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
20.1 |
7.5 |
VTGC、SVTGC(Short type)
Part No |
Size of VTF |
Tube size (φA) |
φD |
φB |
L |
ℓ |
VTGC 2-1~※ |
1/8 |
1.59 |
1.3 |
5.1 |
17.8 |
2.5 |
VTGC 2-2~※ |
1/8 |
3.18 |
1.74 |
5.1 |
17.8 |
2.5 |
VTGC 4-2~※ |
1/4 |
3.18 |
2.3 |
8.8 |
33.3 |
2.5 |
VTGC 4-4~※ |
1/4 |
6.35 |
4.35 |
8.8 |
33.3 |
7.1 |
VTGC 8-4~※ |
1/2 (3/8) |
6.35 |
4.35 |
15.1 |
38.1 |
7.1 |
VTGC 8-6~※ |
1/2 (3/8) |
9.53 |
7.5 |
15.1 |
38.1 |
7.9 |
VTGC 8-8~※ |
1/2 (3/8) |
12.7 |
10.2 |
15.1 |
38.1 |
9.7 |
VTGC 12-12~※ |
3/4 |
19.05 |
15.7 |
22.2 |
50.8 |
11.2 |
VTGC 16-16~※ |
1 |
25.4 |
22.1 |
30.2 |
56.4 |
15.7 |
SVTGC 4-4~※ |
1/4 |
6.35 |
4.35 |
8.8 |
19.1 |
7.1 |
SVTGC 4-12C~※ |
1/4 |
6.35 |
4.35 |
8.8 |
12.7 |
7.1 |
SVTGC 8-4~※ |
1/2 (3/8) |
6.35 |
4.35 |
15.1 |
24.1 |
7.1 |
SVTGC 8-6~※ |
1/2 (3/8) |
9.53 |
7.5 |
15.1 |
24.1 |
7.9 |
SVTGC 8-8~※ |
1/2 (3/8) |
12.7 |
10.2 |
15.1 |
24.1 |
9.7 |
VTF−*−BL
Part No |
Size of VTF |
φB |
L |
VTF-GC2-BL~※ |
1/8 |
5.1 |
17.8 |
VTF-GC4-BL~※ |
1/4 |
8.8 |
33.3 |
VTF-GC8-BL~※ |
1/2 (3/8) |
15.1 |
38.1 |
VTF-GC12-BL~※ |
3/4 |
22.2 |
50.8 |
VTF-GC16-BL~※ |
1 |
30.2 |
56.4 |
VTGB、VTF−GB
Part No |
Size of VTF |
Tube size (φA) |
Thickness (t) |
φD |
φB |
L |
ℓ |
VTGB 2-2~※ |
1/8 |
3.18 |
0.72 |
1.74 |
5.1 |
17.8 |
7.1 |
VTGB 4-2~※ |
1/4 |
3.18 |
0.72 |
1.74 |
8.8 |
33.3 |
10.4 |
VTF-GB4-2-33C~※ |
1/4 |
3.18 |
0.72 |
1.74 |
8.8 |
33.3 |
7.1 |
VTGB 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
33.3 |
10.4 |
VTF-GB4-33C~※ |
1/4 |
6.35 |
1.67 |
3.0 |
8.8 |
33.3 |
10.4 |
VTGB 8-4~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
38.1 |
10.4 |
VTF-GB8-4-38C~※ |
1/2 (3/8) |
6.35 |
1.67 |
3.0 |
15.1 |
38.1 |
10.4 |
VTGB 8-6~※ |
1/2 (3/8) |
9.53 |
1.0 |
7.5 |
15.1 |
38.1 |
10.4 |
VTF-GB8-6-38C~※ |
1/2 (3/8) |
9.53 |
1.21 |
7.1 |
15.1 |
38.1 |
10.4 |
VTF-GB8-38C~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
38.1 |
12.7 |
VTGB 8-8~※ |
1/2 (3/8) |
12.7 |
1.24 |
10.2 |
15.1 |
38.1 |
12.7 |
VTGB 12-8~※ |
3/4 |
12.7 |
1.24 |
10.2 |
22.2 |
50.8 |
15.7 |
VTGB 12-12~※ |
3/4 |
19.05 |
1.65 |
15.75 |
22.2 |
50.8 |
15.7 |
VTGB 16-16~※ |
1 |
25.4 |
1.65 |
22.1 |
30.2 |
56.4 |
20.6 |
VTGAD
Part No |
Size of VTF |
Tube size (φA) |
Thickness (t) |
φD |
φB |
L |
ℓ |
VTGAD 2-2~※ |
1/8 |
3.18 |
0.72 |
1.74 |
5.1 |
36.0 |
15.5 |
VTGAD 4-4~※ |
1/4 |
6.35 |
1.0 |
4.35 |
8.8 |
41.0 |
16.2 |
VTGAD 8-4~※ |
1/2 (3/8) |
6.35 |
1.0 |
4.35 |
15.1 |
46.0 |
16.2 |
VTGAD 8-6~※ |
1/2 (3/8) |
9.53 |
1.36 |
6.8 |
15.1 |
46.0 |
17.8 |
VTGAD 8-8~※ |
1/2 (3/8) |
12.7 |
1.65 |
9.4 |
15.1 |
49.3 |
24.4 |
VTGAD 12-8~※ |
3/4 |
12.7 |
1.65 |
9.4 |
22.2 |
57.2 |
24.4 |
VTGAD 12-12~※ |
3/4 |
19.05 |
1.65 |
15.75 |
22.2 |
58.0 |
25.2 |
VTCT(NPT thread)
Part No |
Size of VTF |
T₁ NPT thread |
φD |
φD₁ |
H Hex. size |
L |
VTCT 2-1~※ |
1/8 |
1/16 |
2.3 |
2.3 |
9.53 |
26.2 |
VTCT 2-2~※ |
1/8 |
1/8 |
2.3 |
4.4 |
11.11 |
26.2 |
VTCT 4-2~※ |
1/4 |
1/8 |
4.35 |
4.35 |
15.88 |
32.5 |
VTCT 4-4~※ |
1/4 |
1/4 |
4.35 |
6.0 |
15.88 |
37.8 |
VTCT 4-6~※ |
1/4 |
3/8 |
4.35 |
7.5 |
19.05 |
38.0 |
VTCT 8-4~※ |
1/2 (3/8) |
1/4 |
10.2 |
6.0 |
23.81 |
41.0 |
VTCT 8-6~※ |
1/2 (3/8) |
3/8 |
10.2 |
9.7 |
23.81 |
41.1 |
VTCT 8-8~※ |
1/2 (3/8) |
1/2 |
10.2 |
10.2 |
23.81 |
46.0 |
VTCT 8-12~※ |
1/2 (3/8) |
3/4 |
10.2 |
15.75 |
33.34 |
47.8 |
VTCT 8-16~※ |
1/2 (3/8) |
1 |
10.2 |
22.1 |
34.93 |
55.8 |
VTCT 12-4~※ |
3/4 |
1/4 |
15.75 |
6.0 |
33.34 |
48.7 |
VTCT 12-6~※ |
3/4 |
3/8 |
15.75 |
9.7 |
33.34 |
48.8 |
VTCT 12-8~※ |
3/4 |
1/2 |
15.75 |
10.2 |
33.34 |
53.8 |
VTCT 12-12~※ |
3/4 |
3/4 |
15.75 |
15.75 |
33.34 |
53.8 |
VTCT 16-16~※ |
1 |
1 |
22.1 |
22.1 |
41.28 |
62.6 |
Male Connector (R thread) VTCT(R thread)
Part No |
Size of VTF |
T₁ R thread |
φD |
φD₁ |
H Hex. size |
L |
VTCT 2-R1~※ |
1/8 |
1/16 |
2.3 |
2.3 |
9.53 |
26.2 |
VTCT 2-R2~※ |
1/8 |
1/8 |
2.3 |
4.4 |
11.11 |
26.2 |
VTCT 4-R2~※ |
1/4 |
1/8 |
4.35 |
4.35 |
15.88 |
32.5 |
VTCT 4-R4~※ |
1/4 |
1/4 |
4.35 |
6.0 |
15.88 |
37.8 |
VTCT 4-R6~※ |
1/4 |
3/8 |
4.35 |
7.5 |
19.05 |
40.0 |
VTCT 4-R8~※ |
1/4 |
1/2 |
4.35 |
10.2 |
23.81 |
43.7 |
VTCT 8-R4~※ |
1/2 (3/8) |
1/4 |
10.2 |
6.0 |
23.81 |
41.0 |
VTCT 8-R6~※ |
1/2 (3/8) |
3/8 |
10.2 |
9.7 |
23.81 |
42.1 |
VTCT 8-R8~※ |
1/2 (3/8) |
1/2 |
10.2 |
10.2 |
23.81 |
46.0 |
VTCT 8-R12~※ |
1/2 (3/8) |
3/4 |
10.2 |
15.75 |
33.34 |
47.8 |
VTCT 8-R16~※ |
1/2 (3/8) |
1 |
10.2 |
22.1 |
34.93 |
55.8 |
VTCT 12-R4 |
3/4 |
1/4 |
15.75 |
6.0 |
33.34 |
48.7 |
VTCT 12-R6 |
3/4 |
3/8 |
15.75 |
9.7 |
33.34 |
48.8 |
VTCT 12-R8 |
3/4 |
1/2 |
15.75 |
10.2 |
33.34 |
53.8 |
VTCT 12-R12 |
3/4 |
3/4 |
15.75 |
15.75 |
33.34 |
53.8 |
VTCT 16-R16 |
1 |
1 |
22.1 |
22.1 |
41.28 |
62.6 |
Male Connector (Straight thread) VTCU
Part No |
Size of VTF |
T₁ unified thread |
φD |
φD₁ |
ℓ |
H Hex. size |
L |
O-ring AS568 |
VTCU 4-4~※ |
1/4 |
7/16-20 |
4.35 |
5.2 |
9.1 |
19 |
33.0 |
-904 |
VTCU 4-6~※ |
1/4 |
9/16-18 |
4.35 |
7.1 |
9.9 |
19 |
33.8 |
-906 |
VTCU 8-6~※ |
1/2 (3/8) |
9/16-18 |
7.5 |
7.5 |
9.9 |
23.81 |
37.6 |
-906 |
VTCU 8-8~※ |
1/2 (3/8) |
3/4-16 |
10.2 |
10.2 |
11.1 |
23.81 |
38.8 |
-908 |
VTCU 8-10~※ |
1/2 (3/8) |
7/8-14 |
7.5 |
15.0 |
12.7 |
25.4 |
42.2 |
-910 |
VTCU 12-6~※ |
3/4 |
9/16-18 |
15.75 |
7.1 |
9.9 |
33.34 |
45.1 |
-906 |
VTCU 12-12~※ |
3/4 |
1 1/16-12 |
15.75 |
15.75 |
15.09 |
33.34 |
52.3 |
-912 |
*O-ring is a standard accessory. (Material is FKM)
VTSA(NPT thread)
Part No |
Size of VTF |
T₁ NPT thread |
φD |
H Hex. size |
L |
VTSA 2-1~※ |
1/8 |
1/16 |
2.3 |
11.11 |
29.5 |
VTSA 2-2~※ |
1/8 |
1/8 |
2.3 |
14.29 |
30.2 |
VTSA 4-2~※ |
1/4 |
1/8 |
4.35 |
15.88 |
35.8 |
VTSA 4-4~※ |
1/4 |
1/4 |
4.35 |
19 |
36.6 |
VTSA 8-4~※ |
1/2 (3/8) |
1/4 |
10.2 |
23.81 |
38.0 |
VTSA 8-6~※ |
1/2 (3/8) |
3/8 |
10.2 |
23.81 |
41.1 |
VTSA 8-8~※ |
1/2 (3/8) |
1/2 |
10.2 |
26.99 |
48.5 |
VTSA 8-16~※ |
1/2 (3/8) |
1 |
10.2 |
41.28 |
55.0 |
VTSA 12-12~※ |
3/4 |
3/4 |
15.75 |
33.34 |
55.6 |
VTSA 16-16~※ |
1 |
1 |
22.1 |
41.28 |
63.8 |
Female Connector (Rc thread)
VTSA(Rc thread)
Part No |
Size of VTF |
T₁ NPT thread |
φD |
H Hex. size |
L |
VTSA 2-R1~※ |
1/8 |
1/16 |
2.3 |
11.11 |
29.5 |
VTSA 2-R2~※ |
1/8 |
1/8 |
2.3 |
14.29 |
30.2 |
VTSA 4-R2~※ |
1/4 |
1/8 |
4.35 |
15.88 |
35.8 |
VTSA 4-R4~※ |
1/4 |
1/4 |
4.35 |
19 |
36.6 |
VTSA 8-R4~※ |
1/2 (3/8) |
1/4 |
10.2 |
23.81 |
38.0 |
VTSA 8-R6~※ |
1/2 (3/8) |
3/8 |
10.2 |
23.81 |
41.1 |
VTSA 8-R8~※ |
1/2 (3/8) |
1/2 |
10.2 |
26.99 |
48.5 |
VTSA 12-R8~※ |
3/4 |
1/2 |
15.75 |
33.34 |
54.6 |
VTSA 12-R12~※ |
3/4 |
3/4 |
15.75 |
33.34 |
55.6 |
VTSA 16-R12~※ |
1 |
3/4 |
22.1 |
41.28 |
63.8 |
VTSA 16-R16~※ |
1 |
1 |
22.1 |
41.28 |
63.8 |
BI-LOK Fitting Connector VTUB
Part No |
Size of VTF |
Tube size (φA) |
φD |
H Hex. size |
H₁ Hex. size |
ℓ₁ |
L |
VTUB 2-2~※ |
1/8 |
3.18 |
2.3 |
15.88 |
11.11 |
13 |
37.9 |
VTUB 4-2~※ |
1/4 |
3.18 |
4.35 |
15.88 |
11.11 |
13 |
38.6 |
VTUB 4-4~※ |
1/4 |
6.35 |
4.35 |
15.88 |
14.29 |
15.4 |
40.7 |
VTUB 4-8~※ |
1/4 |
12.7 |
4.35 |
23.81 |
22.23 |
23 |
46.3 |
VTUB 8-4~※ |
1/2 (3/8) |
6.35 |
7.5 |
23.81 |
14.29 |
15.4 |
45.5 |
VTUB 8-6~※ |
1/2 (3/8) |
9.53 |
7.5 |
23.81 |
17.46 |
17 |
46.3 |
VTUB 8-8~※ |
1/2 (3/8) |
12.7 |
10.2 |
23.81 |
22.23 |
23 |
49.6 |
VTUB 8-12~※ |
1/2 (3/8) |
19.05 |
10.2 |
26.99 |
28.58 |
24.6 |
55.3 |
VTUB 12-8~※ |
3/4 |
12.7 |
15.75 |
33.34 |
22.23 |
23 |
57.4 |
VTUB 12-12~※ |
3/4 |
19.05 |
15.75 |
33.34 |
28.58 |
24.6 |
57.4 |
VTUB 12-16~※ |
3/4 |
25.4 |
15.75 |
38.1 |
38.1 |
31 |
66.6 |
VTUB 4-4~※ |
1 |
6.35 |
22.1 |
41.27 |
14.29 |
15.4 |
56.5 |
VTUB 4-6M~※ |
1/4 |
6.0 |
4.35 |
15.88 |
14 |
15.4 |
40.7 |
BI-LOK Bulkhead Fitting Connector VTSB
Part No |
Size of VTF |
Tube size (φA) |
T₁ unified thread |
φD |
H Hex. size |
H₁ Hex. size |
ℓ₂ |
H₂ Hex. size |
L |
VTSB 4-4~※ |
1/4 |
6.35 |
7/16 – 20 |
4.35 |
15.88 |
14.29 |
15.4 |
15.88 |
57.5 |
VTSB 4-4S~※ |
1/4 |
6.35 |
7/16 – 20 |
4.35 |
15.88 |
14.29 |
15.4 |
15.88 |
48.1 |
VTSB 4-6~※ |
1/4 |
9.53 |
9/16 – 20 |
4.35 |
19.00 |
17.46 |
17.0 |
19.00 |
58.3 |
VTSB 8-6~※ |
1/2 (3/8) |
9.53 |
9/16 – 20 |
7.5 |
23.81 |
17.46 |
23.0 |
23.81 |
64.9 |
VTSB 8-8~※ |
1/2 (3/8) |
12.7 |
3/4 – 20 |
10.2 |
23.81 |
22.23 |
23.0 |
23.81 |
70.0 |
VTSB 8-12~※ |
1/2 (3/8) |
19.05 |
1 – 20 |
10.2 |
30.16 |
28.58 |
24.6 |
30.16 |
87.1 |
VTSB 12-12~※ |
3/4 |
19.05 |
1 – 20 |
15.75 |
33.34 |
28.58 |
24.6 |
33.34 |
93.3 |
VTSB 16-16~※ |
1 |
1 5/16 – 20 |
22.1 |
41.28 |
31.8 |
41.28 |
36.1 |
41.28 |
96.3 |
BI-LOK Fitting Bore Through Connector
Part No |
Size of VTF |
Tube size (φA) |
φD |
H Hex. size |
H₁ Hex. size |
L |
VTUB 4-1-BT~※ |
1/4 |
1.58 |
4.35 |
15.88 |
7.93 |
34.12 |
VTUB 4-2-BT~※ |
1/4 |
3.17 |
4.35 |
15.88 |
11.11 |
38.45 |
VTUB 8-8M-BT~※ |
1/2 (3/8) |
8 |
10.2 |
23.81 |
17.0 |
46.0 |
Union VTUA、VTF−UA
Part No |
Size of VTF |
φD |
H Hex. size |
L |
VTUA 2~※ |
1/8 |
2.3 |
9.53 |
27.7 |
VTUA 4~※ |
1/4 |
4.35 |
15.88 |
38.9 |
VTUA 8~※ |
1/2 (3/8) |
10.2 |
23.81 |
46.0 |
VTUA 12~※ |
3/4 |
15.75 |
33.34 |
60.5 |
VTUA 16~※ |
1 |
22.1 |
41.27 |
64.6 |
VTF-UA2~※ |
1/8 |
2.3 |
9.53 |
28.7 |
VTF-UA4~※ |
1/4 |
4.35 |
15.88 |
39.4 |
VTF-UA8~※ |
1/2 (3/8) |
10.2 |
23.81 |
46.7 |
Reduced Union VTUR
Part No |
Size of VTF |
Size of VTF |
φD |
φD₁ |
H Hex. size |
L |
VTUR 4-2~※ |
1/4 |
1/8 |
4.35 |
2.3 |
15.88 |
35.1 |
VTUR 8-4~※ |
1/2 (3/8) |
1/4 |
7.5 |
4.35 |
23.81 |
43.4 |
VTUR 12-4~※ |
3/4 |
1/4 |
15.75 |
4.35 |
33.34 |
51.0 |
VTUR 12-8~※ |
3/4 |
1/2 |
15.75 |
10.2 |
33.34 |
55.0 |
VTUR 16-4~※ |
1 |
1/4 |
22.1 |
4.35 |
41.28 |
55.0 |
VTUR 16-8~※ |
1 |
1/2 |
22.1 |
10.2 |
41.28 |
58.0 |
VTUR 16-12~※ |
1 |
3/4 |
22.1 |
15.75 |
41.28 |
65.0 |
Bulkhead Union VTSU、VTF−SU
Part No |
Size of VTF |
T unified thread |
φD |
ℓ |
S Max |
H Hex. size |
L |
Diameter of wall through hole |
VTSU 2~※ |
1/8 |
5/16 – 24 |
2.3 |
23.5 |
6 |
11.11 |
41.0 |
9.0 |
VTSU 4~※ |
1/4 |
9/16 – 18 |
4.35 |
31.8 |
11.2 |
19 |
54.9 |
15.0 |
VTSU 8~※ |
1/2 (3/8) |
7/8 – 14 |
10.2 |
36.6 |
12.7 |
26.99 |
63.5 |
23.0 |
VTSU 12~※ |
3/4 |
1 1/4 – 18 |
15.75 |
46.6 |
17.46 |
38.1 |
82.0 |
32.5 |
VTSU 16~※ |
1 |
1 1/2 – 20 |
22.1 |
50.0 |
17.46 |
47.63 |
88.5 |
39.0 |
VTF-SU4~※ |
1/4 |
9/16 – 18 |
4.35 |
33.0 |
11.2 |
19 |
56.6 |
15.0 |
VTF-SU4S~※ |
1/4 |
9/16 – 18 |
4.35 |
25.1 |
3.3 |
19 |
46.2 |
15.0 |
VTF-SU8~※ |
1/2 (3/8) |
7/8 – 14 |
10.2 |
37.6 |
12.7 |
26.99 |
65.3 |
23.0 |
VTF-SU8S~※ |
1/2 (3/8) |
7/8 – 14 |
10.2 |
28.2 |
3.3 |
26.99 |
54.4 |
23.0 |
Bulkhead Connector for Tube Butt Weld VTST
Part No |
Size of VTF |
T unified thread |
φD |
ℓ |
S Max |
H Hex. size |
L |
Diameter of wall through hole |
VTSU 2~※ |
1/8 |
5/16 – 24 |
2.3 |
23.5 |
6 |
11.11 |
41.0 |
9.0 |
VTSU 4~※ |
1/4 |
9/16 – 18 |
4.35 |
31.8 |
11.2 |
19 |
54.9 |
15.0 |
VTSU 8~※ |
1/2 (3/8) |
7/8 – 14 |
10.2 |
36.6 |
12.7 |
26.99 |
63.5 |
23.0 |
VTSU 12~※ |
3/4 |
1 1/4 – 18 |
15.75 |
46.6 |
17.46 |
38.1 |
82.0 |
32.5 |
VTSU 16~※ |
1 |
1 1/2 – 20 |
22.1 |
50.0 |
17.46 |
47.63 |
88.5 |
39.0 |
VTF-SU4~※ |
1/4 |
9/16 – 18 |
4.35 |
33.0 |
11.2 |
19 |
56.6 |
15.0 |
VTF-SU4S~※ |
1/4 |
9/16 – 18 |
4.35 |
25.1 |
3.3 |
19 |
46.2 |
15.0 |
VTF-SU8~※ |
1/2 (3/8) |
7/8 – 14 |
10.2 |
37.6 |
12.7 |
26.99 |
65.3 |
23.0 |
VTF-SU8S~※ |
1/2 (3/8) |
7/8 – 14 |
10.2 |
28.2 |
3.3 |
26.99 |
54.4 |
23.0 |
Coupling VTCG
Part No |
Size of VTF |
H Hex. size |
L |
VTCG 2~※ |
1/8 |
11.11 |
16.8 |
VTCG 4~※ |
1/4 |
19 |
30.2 |
VTCG 8~※ |
1/2 (3/8) |
26.99 |
33.3 |
VTCG 12~※ |
3/4 |
38.1 |
42.7 |
VTCG 16~※ |
1 |
44.45 |
51.8 |
Reduced Adapter VTSS
Part No |
Size of VTF |
Size of VTF |
φD |
φD₁ |
H Hex. size |
L |
VTSS 2-4~※ |
1/8 |
1/4 |
2.3 |
– |
19 |
30.2 |
VTSS 4-2~※ |
1/4 |
1/8 |
4.35 |
3.3 |
15.88 |
29.1 |
VTSS 4-4~※ |
1/4 |
1/4 |
4.35 |
– |
19.0 |
35.0 |
VTSS 4-8~※ |
1/4 |
1/2 |
4.35 |
10.2 |
26.99 |
38.5 |
VTSS 4-12~※ |
1/4 |
3/4 |
4.35 |
15.75 |
38.1 |
44.8 |
VTSS 8-4~※ |
1/2 (3/8) |
1/2 |
10.2 |
4.35 |
23.81 |
38.2 |
VTSS 8-12~※ |
1/2 (3/8) |
3/4 |
10.2 |
15.75 |
38.1 |
48.0 |
VTSS 12-4~※ |
3/4 |
1/4 |
15.75 |
4.35 |
33.34 |
45.0 |
VTSS 12-8~※ |
3/4 |
1/2 |
15.75 |
10.2 |
33.34 |
48.0 |
Male Elbow (NPT thread) VTLN(NPT thread)
Part No |
Size of VTF |
T₁ NPT thread |
φD |
h Width flats |
L |
L₁ |
VTLN 4-2~※ |
1/4 |
1/8 |
4.35 |
17.5 |
28.7 |
22.4 |
VTLN 4-4~※ |
1/4 |
1/4 |
4.35 |
17.5 |
28.7 |
26.9 |
VTLN 8-4~※ |
1/2 (3/8) |
1/4 |
10.2 |
20.6 |
33.3 |
26.9 |
VTLN 8-6~※ |
1/2 (3/8) |
3/8 |
10.2 |
20.6 |
33.3 |
28.2 |
VTLN 8-8~※ |
1/2 (3/8) |
1/2 |
10.2 |
20.6 |
33.3 |
33.3 |
VTLN 12-12~※ |
3/4 |
3/4 |
15.75 |
31.8 |
46.0 |
39.7 |
Male Elbow (R thread) VTLN(R thread)
Part No |
Size of VTF |
T₁ R thread |
φD |
h Width flats |
L |
L₁ |
VTLN 4-R2~※ |
1/4 |
1/8 |
4.35 |
17.5 |
28.7 |
22.4 |
VTLN 4-R4~※ |
1/4 |
1/4 |
4.35 |
17.5 |
28.7 |
26.9 |
VTLN 4-R6~※ |
1/4 |
3/8 |
4.35 |
20.6 |
28.7 |
28.2 |
VTLN 8-R6~※ |
1/2 (3/8) |
3/8 |
10.2 |
20.6 |
33.3 |
28.2 |
VTLN 8-R8~※ |
1/2 (3/8) |
1/2 |
10.2 |
20.6 |
33.3 |
33.3 |
VTLN 12-R4~※ |
3/4 |
1/4 |
15.75 |
31.8 |
46.0 |
36.7 |
VTLN 12-R8~※ |
3/4 |
1/2 |
15.75 |
31.8 |
46.0 |
39.7 |
VTLN 12-R12~※ |
3/4 |
3/4 |
15.75 |
31.8 |
46.0 |
39.7 |
Union Elbow VTLA、VTF−LA
(mm)
Part No |
Size of VTF |
φ D |
h Width flats |
L |
VTLA 2-※ |
1/8 |
2.3 |
11.11 |
19.8 |
VTLA 4-※ |
1/4 |
4.35 |
17.5 |
28.7 |
VTLA 8-※ |
1/2 (3/8) |
10.2 |
20.6 |
33.3 |
VTF-LA 2-※ |
1/8 |
2.3 |
11.11 |
22.6 |
VTF-LA 4-※ |
1/4 |
4.35 |
17.5 |
27.2 |
VTF-LA 8-※ |
1/2 (3/8) |
10.2 |
25.0 |
36.8 |
VTF-LA 12-※ |
3/4 |
15.7 |
34.0 |
48.8 |
VTF-LA 16-※ |
1 |
22.1 |
42.9 |
50.8 |
Union Tee VTTA、VTF−TA
(mm)