Product Made In Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: VB Series
Features
316 STAINLESS STEEL BODY STANDARD
PRESSURE TO 24.5 MPa
WIDE TEMPERATURE RANGE -196~230℃
CHOICE OF STEM DESIGNS(FOR VB VALVE SERIES)
STRAIGHT AND ANGLE PATTERN
100% FACTORY TESTED
Stop Valve Series
Valve Specifications Table
Valve series | Max. working Pressure MP “a* | Working Temp, range °C | Type & size of end Connections |
---|
BI-LOK | Pipe Thread | Socket Weld |
---|
VBM | 6.9 @38 °C | -30〜120 | 1/4″ | — | — |
*VB*” | 20.5 @38 °C | -10-(120)230 | 1/8”—3/4、¢6-12 | 1/8—1/2 | — |
VN | 24.5 @38 °C | -10-230 | 1/8″—1/2″, ^6-12 | 1/8—1/2 | 1/4-1/2 |
VNN | 24.5 @38 °C | -10-150 | 1/8″—1/2 二”-12 | 1/8—1/2 | 1/4-1/2 |
VE | 6.9 @38 °C | -10-100 | 一 | 1/4—1/2 | — |
VET | 1 @38°C | -10-100 | 一 | 1/4—378 | — |
VQ | 2.9 @38 °C | -10-100 | 1/4–3/8″ | 1/4—378 | — |
VH | 24.5 @38 °C | -10-400 | 1/4–1/2″ 收6-12 | 1/4—1/2 ”-12 | 1/4-1/2 夕 6-12 |
VC | 10.3 @38 °C | -196-120 | 一 | 1/8—1/2 | 1/8-1/2 |
The valve series symbol for the VB series varies depending on the stem shape. For details, please refer to pages 2 and 3. *Please contact sales when ordering for applicable fluids.
Valve Part Number Definition
V□□-□□□□-□
① ②③④⑤ ⑥
①Inch BI-LOK End
②Metric BI-LOK End
Symbol | 6M | 8M | 10M | 12M |
---|
Size | 6mm | 8mm | 10mm | 12mm |
③Pipe Thread or Socket Weld End
Symbol | 2 | 4 | 6 | 8 | 12 | 16 |
---|
Size | 1/8B | 1/4B | 3/8B | 1/2B | 3/4B | 1B |
④Outlet end Connection size IN
⑤Outlet Connection end Omitted when identical with the Inlet Port.
⑥Style of body :Straight type / A:Angle type
VB*Series
Specification
Max.Working Pressure:20.5MPa @ 38℃ |
Working Temperature range : Metal Seal Stem : 一10〜230℃ (Valve Series : VBE.VBD.VBN) Soft Seal Stem :-10~120℃ (Valve Series : VBS) |
Lubricant Silicon base, Fluorocabon base |
Flow Coefficient | VBE | VBD | VBS | VBN |
Orifice | 2.0mm | 0.06 | 0.06 | 0.06 | 0.06 |
4.3mm | 0.3 | 0.3 | 0.3 | 0.3 |
6.3mm | 0.7 | 0.8 | 0.8 | 0.7 |
9.5mm | 1.8 | 1.8 | 1.8 | 1.5 |
VB*

E:Vee Type Stem
N:Needle Type Stem
S:Soft Seal Type Stem
D:Disk Type Stem
Materials

Dimension
Dimensions BI-LOK End
Part No. | Tube O.D | Orifice size mm | Dimensions mm |
---|
6A | L | Li | F | H | Hi | H2 | h | hi | B | C | G | Gi | t | W | |
---|
in | mm | E | M |
---|
VB*-2D-S | 1/8 | 3.18 | 2 | 25 | 18.3 | 13 | 56 | 2.5 | 10.5 | 10 | 6.5 | 17.5 | 11.1 | 17.46 | 14.29 | M12 | 38 | 16 | M3xO.J |
VB*-4D-S | 1/4 | 6.35 | 4.3 | 28.9 | 21.4 | 15.4 | 60 | 3 | 10.5 | 12 | 6.5 | 17.5 | 14.29 | 19 | 17.46 | M14 | 38 | 16 | M3xO.J |
VB*-6D-S | 3/8 | 9.53 | 6.3 | 32.9 | 25.4 | 17 | 71 | 4 | 13.5 | 14.5 | 6.5 | 20.6 | 17.46 | 23.81 | 20.64 | M18 | 48 | 19 | M4x0./ |
VB*-8D-S | 1/2 | 12.7 | 6.3 | 35.7 | 25.4 | 23 | 71 | 4 | 14.5 | 14.5 | 6.5 | 20.6 | 22.23 | 23.81 | 20.64 | M18 | 48 | 19 | M4x0./ |
VB*-12D-S | 3/4 | 19.05 | 9.5 | 48.4 | 38.1 | 24.6 | 87.5 | 6 | 19.5 | 20 | 6.5 | 31.8 | 28.58 | 31.75 | 28.58 | M24 | 62 | 25 | M5x0.€ |
VB*-6MD-S | — | 6 | 4.3 | 29.7 | 22.2 | 15.4 | 60 | 3 | 10.5 | 12 | 6.5 | 17.5 | 14 | 19 | 17.46 | M14 | 38 | 16 | M3xO.J |
VB*-8MD-S | — | 8 | 4.3 | 29.7 | 22.2 | 16.3 | 60 | 3 | 10.5 | 12 | 6.5 | 17.5 | 17 | 19 | 17.46 | M14 | 38 | 16 | M3xO.J |
VB*-10MD-S | — | 10 | 6.3 | 33.2 | 25.4 | 17.3 | 71 | 4 | 14.5 | 14.5 | 6.5 | 20.6 | 19 | 23.81 | 20.64 | M18 | 48 | 19 | M4x0./ |
VB*-12MD-S | — | 12 | 6.3 | 35.6 | 25.4 | 22.9 | 71 | 4 | 14.5 | 14.5 | 6.5 | 20.6 | 22 | 23.81 | 20.64 | M18 | 48 | 19 | M4x0./ |
Dimensions Pipe tapered End
Part No. | T (RC) | Orifice size mm | Dimensions mm |
---|
L | H | Hi | H2 | h | hi | B | G | Gi | t | W | E | M |
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Rc | NPT |
---|
VB*-2RF-S | VB*-2NF-S | 1/8 | 2 | 20.6 | 60 | 3 | 13.5 | 12 | 6.5 | 20.6 | 19 | 17.46 | M14 | 38 | 19 | M4x0.7 |
VB*-4RF-S | VB*-4NF-S | 1/4 | 4.3 | 27 | 71 | 4 | 14.5 | 14.5 | 6.5 | 20.6 | 23.81 | 20.64 | M18 | 48 | 19 | M4x0.7 |
VB*-6RF-S | VB*-6NF-S | 3/8 | 6.3 | 27 | 71 | 4 | 14.5 | 14.5 | 6.5 | 23.8 | 23.81 | 20.64 | M18 | 48 | 19 | M4x0.7 |
VB*-8RF-S | VB*-8NF-S | 1/2 | 9.5 | 38.1 | 87.5 | 6 | 19.5 | 20 | 6.5 | 31.8 | 31.75 | 28.58 | M24 | 62 | 25 | M5x0.8 |
Bottom Maunting(Option):Symbol Mark“BT”example:VBE-4D-S-BT