IHARA SCIENCE CORPORATION
IHARA VC Series Screw Bonnet type Stop Valves for Low
Product Made In Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: VC 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
Specifications
Max. Working Pressure: 10.3 MPa @ 38℃
Working Temperature Range: -196 ~ 120℃
Lubricant: MoS2 base
Materials
| No. | Part Description | Qty | Material |
|---|---|---|---|
| 1 | Body | 1 | SUS316 |
| 2 | Disk | 1 | SUS316 |
| 3 | Stem | 1 | SUS316 |
| 4 | Bonnet | 1 | SUS316 |
| 5 | Gasket | 1 | SUS316 |
| 6 | Packing ring | 1 | SUS316 |
| 7 | Lock nut | 1 | SUS304 |
| 8 | Packing | 3 | Cabon Fiber |
| 9 | Packing | 3 | Graphoil |
| 10 | Gland | 1 | SUS316 |
| 11 | Packing nut | 1 | SUS304 |
| 12 | Handle | 1 | ADC12 |
| Part No. | T (Rc) | Orifice size mm | L | Li A | H | Hi | h | hi | D | G | t | W | CV | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| s | A | s | A | s | A | |||||||||||
| VC-2RF-S | 1/8 | 5 | 25 | 26 | 24 | 169 | 157 | 5 | 90 | 79 | 10 | 20 | 30 | M24 | 70 | 0.3 |
| VC-4RF-S | 1/4 | 5 | 28 | 31 | 28 | 169 | 157 | 5 | 90 | 79 | 10 | 22 | 30 | M24 | 70 | 0.5 |
| VC-6RF-S | 3/8 | 6 | 30 | 33 | 30 | 169 | 157 | 5 | 90 | 79 | 10 | 25 | 30 | M24 | 70 | 0.9 |
| VC-8RF-S | 1/2 | 7.1 | 35 | 38 | 35 | 169 | 157 | 5 | 90 | 79 | 10 | 32 | 30 | M24 | 70 | 1.2 |
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