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VPKF50B-E-Z

Borosilicate KF Viewport for flange installation, Standard | 302261

Connection type

Nominal diameter

Leak rate

< 1E-9 mbar ∙ l/s

Max. operating temperature

150 °C

View diameter

50 mm

Window material

Borosilicate

Transmission range

400-2500 nm

Window mounting

FKM O-Ring

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Connection type

Nominal diameter

Leak rate

< 0.75E-9 Torr ∙ l/s

Max. operating temperature

302 °F

View diameter

1.969 ″

Window material

Borosilicate

Transmission range

400-2500 nm

Window mounting

FKM O-Ring

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available

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Category	Borosilicate KF Viewport for flange installation, Standard
Bakeout temperature	302 °F
Max. bakeout temperature	150 °C
Window thickness	0.157 ″
Article no.	302261
Connection type	KF
Nominal diameter	50
Leakrate	< 1E-9 mbar ∙ l/s
Max. operating temperature	150 °C
Max. operating temperature	302 °F
Outer diameter	77 mm
Outer diameter	3.031 ″
Diameter	75,1 mm
Diameter	2.957 ″
Length	10 mm
Length	0.394 ″
Diameter	2.957in
View diameter	1.969 ″
Window mounting	FKM-O-Ring
Window thickness	4 mm
Window material	Borosilicate
Transmission range	appr. 400 - 2500 nm
View diameter	50 mm

Product	Nominal diameter	Connection type	Length	Window thickness	Window material	View diameter	Availability
VPKF40B-E	40	KF	8 mm	4 mm	Borosilicate	40 mm	available
VPKF40B-E-Z	40	KF	10 mm	4 mm	Borosilicate	40 mm	available
VPKF50B-E	50	KF	8 mm	4 mm	Borosilicate	50 mm	available

DN	Nominal diameter	50
AD	Outer Diamter	77 mm
D1	View diameter	50 mm
D2	Diameter	75,1 mm
L1	Hight	10 mm
L2	Window thickness	4 mm

DN	Nominal diameter	50
AD	Outer Diamter	3.031 ″
D1	View diameter	1.969 ″
D2	Diameter	2.957 ″
L1	Hight	0.394 ″
L2	Window thickness	0.157 ″

Downloads	(DE) VACOM Produktinformationen ISO & KF Standardschaugläser.pdf (EN) VACOM product information ISO & KF standard viewports.pdf
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Accessories

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XA50

KF Clamp Chains | 303292

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in production

VPKF50B-WINDOW

Replacement window for standard KF-viewport, DN50 | 379048

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on request

KF50VR-VP

Replacement O-ring for standard KF-viewports, DN50 | 380669

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available

Upselling Products

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VPKF50Q-E-Z

Fused Silica KF Viewport for flange installation, Standard | 349734

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Product	Availability
VPKF50B-L	available	- +