Cylindrical Vacuum Chamber Option

NW flange

NW flange size table

Nominal diameter	NW10	NW16	NW25	NW40	NW50
ΦE	30	30	40	55	75
ΦF	12.2	17.2	26.2	41.1	52.2
ΦG	10	16	24	39	55
ΦJ	13.8	21.7	27.2	42.7	60.5

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socket

Socket connection

Nominal diameter	ΦK	M
Rc1/8	13.9	30
Rc1/4	17.1	13
Rc3/8	21.1	14
Rc1/2	25	18
Rc3/4	31	19
Rc1	37.9	24

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Gauge port

Gauge port mounting details
When installing the gauge port on the pipe cylindrical surface

Gauge port connection

Model	GP-15	GP-18	GP-21	GP-28
A	16	40	25	(55)
B	19	40	28	(55)
C	22	36	28	(55)
L	28.8	55	40	(40)

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Leak port

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Peep window

Peep window size chart

Specified dimensions(ΦA)	B	Fuselage pipe diameter
32.5	34	All applicable
47.1	38.6	All applicable
74.3	76.3	Φ139.8Φ216.3Φ318.5
112.3	114.3	Φ216.3Φ318.5

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VG ・ VF flange details

ＶＧFlange

Model number	Outer diameter Size	Ａ	ΦＤ	Ｔ	Ｓ	Φａ	ΦＣ	Ｎ	ｈ	ＧⅠ	ＧⅡ	Ｈ
VG20-20A	27.2	28.0	80	8	4	25	60	4	10	34	44	3.0
VG25-25A	34.0	35.0	90	8	4	32	70	4	10	40	50	3.0
VG40-40A	48.6	49.5	105	10	5	46	85	4	10	55	65	3.0
VG50-50A	60.5	61.0	120	10	5	57	100	4	10	70	80	3.0
VG65-65A	76.3	77.0	145	10	5	73	120	4	12	85	95	3.0
VG80-80A	89.1	90.0	160	12	6	86	135	4	12	100	110	3.0
VG100-100A	114.3	115.0	185	12	6	111	160	8	12	120	130	3.0

VF flange

Model number	Outer diameter Size	Ａ	ΦＤ	Ｔ	Ｓ	Φａ	ΦＣ	Ｎ	ｈ
VF20-20A	27.2	28.0	80	8	4	25	60	4	10
VF25-25A	34.0	35.0	90	8	4	32	70	4	10
VF40-40A	48.6	49.5	105	10	5	46	85	4	10
VF50-50A	60.5	61.0	120	10	5	57	100	4	10
VF65-65A	76.3	77.0	145	10	5	73	120	4	12
VF80-80A	89.1	90.0	160	12	6	86	135	4	12
VF100-100A	114.3	115.0	185	12	6	111	160	8	12