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 C
Working Temperature range : Metal Seal Stem : 一10〜230℃ (Valve Series ： VBK) Soft Seal Stem : 一10〜120℃ (Valve Series ： VBF)
Lubricant : Silicon base, Fluorocabon base
Flow Coefficient		VBK	VBF
Orifice	2.0mm	0.1	0.1
	4.3mm	0.3	0.25
	6.3mm	0.8	0.7
	9.5mm	1.7	1.6

VB
＊ Ｋ：Disk Type Stem
Ｆ：Soft Seal Type Stem

 

 

Materials

No.	Part Description	Qty	Material
1	Body	1	SUS316
2	Stem	1	SUS316
2-1	Disk	1	SUS630
2-2	Disk Plate	1	SUS630
2-3	Soft seat	1	PCTFE
3	Packing ring	2	SUS316
4	Packing	2	PTFE
5	Packing	1	RF PTFE
6	Bonnet	1	SUS316
7	Lock nut	1	SUS316
8	Lock nut	1	SUS316
9	Handle	1	Phenol resin

Dimensions

Dimensions BI-LOK End

Part No.	Connect size		Orifice size mm	Dimensions mm
	©A			L	Li	F	H	Hi	H2	h	hi	B	C	G	t	W	E	M
	in	mm
VB*-2D-S	1/8	3.18	2	28.9	22.2	13	75	3.5	10.5	42	3.5	17.5	11.11	14.29	7/16	38	16	M3x0.5
VB*-4D-S	1/4	6.35	4.3	29.7	22.2	15.4	75	3.5	10.5	42	3.5	17.5	14.29	14.29	7/16	38	16	M3x0.5
VB*-6D-S	3/8	9.53	6.3	31.3	23.8	17	82.5	4	13.5	46	3.5	20.6	17.46	14.29	7/16	48	19	M4x0.7
VB*-8D-S	1/2	12.7	6.3	35.7	25.4	23	82.5	4	14.5	46	3.5	20.6	22.23	14.29	7/16	48	19	M4x0.7
VB*-12D-S	3/4	19.05	9.5	48.4	38.1	24.6	99.5	6	19.5	54	3.5	31.8	28.58	17.46	1/2	62	25	M5x0.8
VB*-6MD-S	—	6	4.3	29.7	22.2	15.4	75	3.5	10.5	42	3.5	17.5	14	14.29	7/16	38	16	M3x0.5
VB*-8MD-S	—	8	4.3	29.7	22.2	16.3	75	3.5	10.5	42	3.5	17.5	17	14.29	7/16	38	16	M3x0.5
VB*-10MD-S	—	10	6.3	33.2	25.4	17.3	82.5	4	14.5	46	3.5	20.6	19	14.29	7/16	48	19	M4x0.7
VB*-12MD-S	—	12	6.3	35.6	25.4	22.9	82.5	4	14.5	46	3.5	20.6	22	14.29	7/16	48	19	M4x0.7

Dimentions Pipe thread End

Part No.		Connect size (T)	Orifice size mm	Dimensions mm
				L	H	Hi	H2	h	hi	B	G	t	W
Rc	NPT
VB*-2RF-S	VB*-2NF-S	1/8	4.3	24.5	75	3.5	14	42	3.5	20.6	14.29	7/16	38
VB*-4RF-S	VB*-4NF-S	1/4	6.3	27	82.5	4	15	46	3.5	20.6	14.29	7/16	48
VB*-6RF-S	VB*-6NF-S	3/8	6.3	27	82.5	4	15	46	3.5	23.8	14.29	7/16	48
VB*-8RF-S	VB*-8NF-S	1/2	9.5	38.1	99.5	6	20	54	3.5	31.8	17.46	1/2	62

Bottom Maunting（Option）：Symbol Mark“BT”example：VBK－4D－S－BT