Standard flexible tubes

We offer stainless steel flexible tubes that are convenient for piping connection of vacuum equipment and have flexible corrosion resistance,as added new products (10A - 100A) to the four types of conventional standard products.

＜How to specify models＞
For standard flexible tubes, specify tube lengths in addition to models from shape to shape. When ordering, note that some models have two types of the same size. The first letter of each model will differ.

Conventional product: VF New product: VFP (Example model) New product (VFP), NW flanged 25A with a length of 500L: VFP1025-500L*

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NW-KF type ( VF 1000 / VFP1000 )

Pressure conditions	(Internal) vacuum (External) atmospheric pressure
Temperature conditions	Ordinary temperature (baking temp. max250℃)
Length	500, 1000, 1500, 2000mm
Tube material	stainless steel
Flange material	stainless steel
Leakage	1×10^-7 Pa・m³/s or less

(Unit：mm)

NW-KF type ( VF1000 / VFP1000 )
Model		(Bi)		(Bo)		D	A	【PDF】Product drawing download
VF	VFP	VF	VFP	VF	VFP	D	A	VF	VFP
VF1010	VFP1010	10.5	12.4	15.0	17.1	30	12.2	PDF	PDF
VF1016	VFP1016	13.2	18.7	18.5	24.9	30	17.2	PDF	PDF
VF1025	VFP1025	25.0	25.0	34.0	32.2	40	26.2	PDF	PDF
VF1040	VFP1040	38.2	41.0	50.0	50.5	55	41.2	PDF	PDF
VF1050	VFP1050	53.3	50.1	66.5	60.5	75	52.2	PDF	PDF
VF1063	VFP1063	66.5	62.8	86.5	85.0	87	70.2	PDF	PDF
VF1080	VFP1080	78.0	78.0	101.0	102.0	114	83.2	PDF	PDF
VF1100	VFP1100	103.0	100.0	127.0	126.0	134	102.2	PDF	PDF

CF FLANGES type ( VF2000 / VFP2000 )

Stationary and rotating conflat flanges are used at both ends of the flexible tubes.

Pressure conditions	(Internal) vacuum (External) atmospheric pressure
Temperature conditions	Ordinary temperature (baking temp. max250℃)
Length	500, 1000, 1500, 2000mm
Tube material	stainless steel
Flange material	stainless steel
Leakage	1×10^-9 Pa・m³/s or less

(Unit：mm)

CF FLANGES type ( VF2000 / VFP2000 )
Model		(Bi)		(Bo)		d	D	PCD	取付穴	A	【PDF】Product drawing download
VF	VFP	VF	VFP	VF	VFP	d	D	PCD	取付穴	A	VF	VFP
VF2034	VFP2034	25.0	25.0	34.0	32.2	18.0	33.8	27.0	6-4.4	50.0	PDF	PDF
VF2070	VFP2070	38.2	41.0	50.0	50.5	38.0	69.3	58.7	6-6.8	50.0	PDF	PDF
VF2114	VFP2114	66.5	62.8	86.5	85.0	63.5	113.5	92.2	8-8.5	75.0	PDF	PDF
VF2152	VFP2152	103.0	100.0	127.0	126.0	101.6	151.6	130.3	16-8.5	80.0	PDF	PDF

JIS FLANGES type ( VF3000 / VFP3000 )

VG (stationary) and VF (rotating) JIS B2290 (vacuum flanges) are used at both ends of flexible tubes.

Pressure conditions	(Internal) vacuum (External) atmospheric pressure
Temperature conditions	Ordinary temperature (baking temp. max250℃)
Length	500, 1000, 1500, 2000mm
Tube material	stainless steel
Flange material	stainless steel
Leakage	1×10^-7 Pa・m³/s or less

(Unit：mm)

JIS FLANGES type ( VF3000 / VFP3000 )
Model		(Bi)		(Bo)		d	D	PCD	取付穴	A	【PDF】Product drawing download
VF	VFP	VF	VFP	VF	VFP	d	D	PCD	取付穴	A	VF	VFP
VF3025	VFP3025	25.0	25.0	34.0	32.2	34.0	90	70	4-10	50	PDF	PDF
VF3040	VFP3040	38.2	41.0	50.0	50.5	48.6	105	85	4-10	50	PDF	PDF
VF3050	VFP3050	53.3	50.1	66.5	60.5	60.5	120	100	4-10	50	PDF	PDF
VF3065	VFP3065	66.5	62.8	86.5	85.0	76.3	145	120	4-12	50	PDF	PDF
VF3080	VFP3080	78.0	78.0	101.0	102.0	89.1	160	135	4-12	50	PDF	PDF
VF3100	VFP3100	103.0	100.0	127.0	126.0	114.3	185	160	8-12	50	PDF	PDF

TUBE END type ( VF4000 / VFP4000 )

Pressure conditions	(Internal) vacuum (External) atmospheric pressure
Temperature conditions	Ordinary temperature (baking temp. max250℃)
Length	250, 500, 800, 1000mm
Tube material	stainless steel
Flange material	stainless steel
Leakage	1×10^-7 Pa・m³/s or less

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(Unit：mm)

TUBE END type ( VF4000 / VFP4000 )
Model		(Bi)		(Bo)		d	T	A	【PDF】Product drawing download
VF	VFP	VF	VFP	VF	VFP	d	T	A	VF	VFP
VF4006	VFP4006	10.5	12.4	15.0	17.1	6.35	1	30	PDF	PDF
VF4009	VFP4009	10.5	12.4	15.0	17.1	9.52	1	30	PDF	PDF
VF4012	VFP4012	13.2	12.4	18.5	17.1	12.7	1.24	30	PDF	PDF