IHARA SCIENCE CORPORATION
IHARA VH series Union Bonnet Needle Stop Valves for High Temperature Service
Product Made In Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: VH Series
Features
316 STAINLESS STEEL BODY STANDARD
PRESSURE TO 24.5 MPa
WIDE TEMPERATURE RANGE －196～230℃
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
| Symbol | 4 | 6 | 8 | 12 |
|---|---|---|---|---|
| Size | 1/4″ | 3/8″ | 1/2″ | 3/4″ |
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
VH Series
Specifications
Max. Working Pressure: 24.5MPa @ 20℃
Working Temperature Range: -10 ~ 400℃
Lubricant: MoS2 base
Materials
| No. | Part Description | Qty | Material |
|---|---|---|---|
| 1 | Body | 1 | SUS316 |
| 2 | Disk | 1 | SUS316 |
| 3 | Stem | 1 | SUS630 |
| 4 | Packing | 2 | Graphite |
| 5 | Packing | 2 | Graphite |
| 6 | Union nut | 1 | SUS316 |
| 7 | Bonnet | 1 | SUS316 |
| 8 | Gland | 1 | SUS316 |
| 9 | Stem guide | 1 | SUS304 |
| 10 | Lock nut | 1 | SUS304 |
| 11 | Cap | 1 | SUS304 |
| 12 | Handle | 1 | ADC12 |
| 13 | Nut | 1 | SUS304 |
Dimensions BI-LOK End
| Part No. | Tube O.D | Orifice size mm | L | Li | F | H | Hi | H2 | B | C | W | E | M | CV値 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| in | mm | ||||||||||||||
| VH-4D-S | 1/4 | 6.35 | 3.5 | 40.5 | 33 | 15.4 | 135 | 8 | 16 | 32 | 14.29 | 70 | 28 | M6x1 | 0.2 |
| VH-6D-S | 3/8 | 9.53 | 5.5 | 40.5 | 33 | 17 | 135 | 8 | 16 | 32 | 17.46 | 70 | 28 | M6x1 | 0.5 |
| VH-8D-S | 1/2 | 12.7 | 7.5 | 43.3 | 33 | 23 | 135 | 8 | 16 | 32 | 22.23 | 70 | 28 | M6x1 | 0.9 |
| VH-6MD-S | 6 | 6 | 3.5 | 40.5 | 33 | 15.4 | 135 | 8 | 16 | 32 | 14 | 70 | 28 | M6x1 | 0.2 |
| VH-8MD-S | 8 | 8 | 4.5 | 40.5 | 33 | 16.3 | 135 | 8 | 16 | 32 | 17 | 70 | 28 | M6x1 | 0.3 |
| VH-10MD-S | 10 | 10 | 5.5 | 40.8 | 33 | 17.3 | 135 | 8 | 16 | 32 | 19 | 70 | 28 | M6x1 | 0.5 |
| VH-12MD-S | 12 | 12 | 7.1 | 43.2 | 33 | 22.9 | 135 | 8 | 16 | 32 | 22 | 70 | 28 | M6x1 | 0.9 |
Dimensions Pipe thread End, Socket weld End
| Screwed Part No. | Socket weld Part No. | A | T (Rc) | Orifice size mm | L | l_2 | H | Hi | H2 | B | D | W | CV | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| in | mm | |||||||||||||
| VH-4RF-S | VH-4PSW-S | 1/4B | 14.3 | 1/4 | 5 | 29 | 12 | 135 | 8 | 17 | 32 | 23 | 70 | 0.6 |
| VH-6RF-S | VH-6PSW-S | 3/8B | 17.8 | 3/8 | 6 | 32.5 | 13 | 135 | 8 | 18 | 32 | 32 | 70 | 0.8 |
| VH-8RF-S | VH-8PSW-S | 1/2B | 22.2 | 1/2 | 7.1 | 35 | 13 | 135 | 8 | 18 | 32 | 32 | 70 | 0.9 |
