Sapphire Viewports – UV Grade

sapphire-viewport

Sapphire Viewports – UV Grade

£0£1,773

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TECHNICAL SPECS – CLICK HERE

Sapphire Viewports – UV Grade

These viewports employ a synthetic single crystal sapphire as the window material. Single crystal synthetic sapphire displays very different optical, physical and thermal characteristics depending upon the direction of the axis of the crystal structure. LewVac’s sapphire viewports are offered as standard with the crystal axis Randomly orientated wrt the optical axis. (DUV versions would specifically have this axis at 0°)

Features:
UHV Compatible.
Bakeable to 450°C.
Crystal orientation is random – not specified (specific orientation available on request).

Specifications:
Materials
Window : Sapphire, single crystal
Carrier : Kovar®
Flanges : St.St.

Max. Bakeout Temperature* :
CF flanged viewports : 450°C
KF flanged viewports : 150°C
Weldable viewports : 450°C

Max. Thermal Gradient : 25°C per minute

Optical properties
Crystal orientation : Random – not specified
Surface finish : 50/20 scratch/dig
UV transmission @ 250nm (external) : 50%
parallelism : <3 arc minutes
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* – Assembly rating is reduced to that of the lowest rated component.

Anti-Reflective Coating :- Anti-reflective coatings are available, please call our sales office to discuss your specific requirements.


Product CodeFig.FlangeABCDEFPriceQuantityPDF & STP
SVP-UV-11.6-16CF 2 DN16CF 11.6 1.6 1.1 12.3 - - £193
SVP-UV-14.9-16CF 1 DN16CF 14.9 1.6 2.5 15.2 12.7 - £203
SVP-UV-17.5-40CF 2 DN40CF 17.5 2.0 2.0 19.6 - - £229
SVP-UV-23.8-40CF 2 DN40CF 23.8 2.0 2.0 25.9 - - £259
SVP-UV-36.5-40CF 2 DN40CF 36.5 2.0 3.3 38.6 - - £608
SVP-UV-36.5-63CF 2 DN63CF 36.5 2.0 3.3 38.6 - - £608
SVP-UV-49.2-63CF 2 DN63CF 49.2 2.4 2.5 51.3 - - £709
SVP-UV-74.9-100CF 2 DN100CF 74.9 3.21.1 25.9 - - £1,773
SVP-UV-14.9-16KF 3 DN16KF 14.9 1.6 3.3 15.2 12.7 - £203
SVP-UV-15.2-25KF 3 DN25KF 15.2 1.6 7.8 15.9 9.7 - £244
SVP-UV-17.5-40KF 4 DN40KF 17.5 2.0 3.3 19.6 12.7 - £229
SVP-UV-23.8-40KF 4 DN40KF 23.8 2.0 3.3 25.9 12.7 - £254
SVP-UV-23.8-50KF 4 DN50KF 23.8 2.0 3.3 25.9 12.7 - £259
SVP-UV-14.9-SW 5 WELD 14.9 1.6 2.3 16.7 10.9 - £168
SVP-UV-8.6-SW 6 WELD8.6 1.6 0.8 9.6 7.9 15.6 £142
SVP-UV-11.6-SW 6 WELD 11.6 1.6 0.8 11.7 7.1 18.8 £168
SVP-UV-17.5-SW 7 WELD 17.5 2.0 19.5 24.8 11.2 - P.O.A
    SVP-UV-23.8-SW 7 WELD 23.8 2.0 25.9 31.8 11.2 - P.O.A
      SVP-UV-36.5-SW 7 WELD 36.5 2.0 38.6 44.5 11.2 - P.O.A
        SVP-UV-49.2-SW 7 WELD 49.2 2.4 51.3 56.4 13.0 - P.O.A
          SVP-UV-17.5-AW 8 WELD 17.5 2.0 19.5 38.1 11.2 - £214
          SVP-UV-23.8-AW 8 WELD 23.8 2.0 25.9 38.1 11.2 - £239
          SVP-UV-36.5-AW 8 WELD 36.5 2.0 38.6 63.5 12.4 - £527
          SVP-UV-49.2-AW 8 WELD 49.2 2.4 51.3 63.5 13.7 - £558
          SVP-UV-74.9-AW 8 WELD 74.9 3.2 76.7 88.9 14.0 - £1,418
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