Re-entrant Fused Silica Viewports

re-entrant

Re-entrant Fused Silica Viewports

£644£1,794

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TECHNICAL SPECS – CLICK HERE

Re-entrant Fused Silica Viewports

Specifications:
Materials
Window : Corning HPFS® 7890 fused silica
Carrier : St.St.
Flanges : St.St.

Max. Bakeout Temperature* :
CF flanged viewports : 200°C
Max. Thermal Gradient : 25°C per minute

Optical properties
Surface finish UV grade : 40/20 scratch/dig
Surface finish DUV grade: 20/10 scratch/dig
UV transmission @ 250nm (external)  : > 90%
DUV transmission @ 248nm (internal)  : ≥99.8%
Parallelism UV grade : <30 arc minutes
Parallelism DUV grade :  <10 arc seconds
Homogeneity grade UV / DUV : F / A
Inclusion class UV / DUV : 2 / 0
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* – Assembly rating is reduced to that of the lowest rated component.


Product CodeFlangeGradeABCDPriceQuantityPDF & STP
FSVP-UV-63CFRE DN63CFUV 35.5 48.2 88.91.3 £644
FSVP-UV-100CFRE DN100CFUV 68.3 72.9 88.9 1.8 £1,058
FSVP-DUV-40CFREDN40CF DUV33.736.019.11.3 £736
FSVP-DUV-63CFRE DN63CF DUV 35.5 48.2 88.91.3 £783
FSVP-DUV-100CFRE DN100CF DUV 68.3 72.9 88.9 1.8 £1,334
FSVP-EUV-63CFRE DN63CF EUV 35.5 48.2 88.91.3 £1,058
FSVP-EUV-100CFRE DN100CF EUV 68.3 72.9 88.9 1.8 £1,794
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