Demountable Glass Viewports

demountable-viewport

Demountable Glass Viewports

£30£181

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Technical Specs

Demountable Glass Viewports

Demountable substrate vacuum viewport flanges are an economical “alternative” to fused and/or brazed viewport solutions. They are available with Accu-Sol™ high-transmission glass or quartz (fused silica) substrate materials. Quartz versions are offered in coated and uncoated configurations. Substrate Transmission varies by material and/or coating option. Accu-Sol™ glass has greater than 90% transmission over the 350~2200nm spectral range. Quartz substrates are available with specially formulated broadband (BBAR) anti reflection coatings for better than 99% transmission in the following discrete wavelength ranges… 290~370nm (UV), 350~700nm (A), 650~1050nm (B), 1050~1620nm (C). Uncoated quartz transmission varies from 70~95% over the 200~2200nm range.

The substrate removal (demountable) feature of these vacuum viewports allows optional (custom) optical coatings or for easy cleaning of the window substrate. For high temperature applications up to 250°C, Kalrez® O-rings can be used. Accu-Glass demountable vacuum viewports employ a unique recessed zero profile substrate design, providing widest viewing angles while offering maximum protection.

Features:
HV compatible.
High transmission Accu-Sol™ glass

Specifications:
Materials
Window : See table.
Flange : 304 Stainless steel.
Retainer : Aluminium
O-ring seal : Viton®

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

Max. Thermal Gradient : 25°C per minute

Transmission range : See curves
___________________________________________
* – Assembly rating is reduced to that of the lowest rated component.
– Bakeable up to 250°C with Kalrez ® o-rings, call sales office for details.

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


Product CodeDescriptionPriceQuantityPDF & STP
VPD-AS-16CFDN16CF DEMOUNTABLE VIEWPORT WITH ACCU-SOL GLASS £78
    VPD-AS-40CF DN40CF DEMOUNTABLE VIEWPORT WITH ACCU-SOL GLASS £85
      VPD-FS-40CF DN40CF DEMOUNTABLE VIEWPORT WITH UNCOATED FUSED SILICA OPTIC £159
        VPD-FSUV-40CF DN40CF DEMOUNTABLE VIEWPORT WITH UV COATED FUSED SILICA OPTIC FOR 290-370nm £170
          VPD-FSA-40CF DN40CF DEMOUNTABLE VIEWPORT WITH TYPE A COATED FUSED SILICA OPTIC FOR 350-700nm £181
            VPD-FSB-40CF DN40CF DEMOUNTABLE VIEWPORT WITH TYPE B COATED FUSED SILICA OPTIC FOR 650-1050nm £181
              VPD-FSC-40CF DN40CF DEMOUNTABLE VIEWPORT WITH TYPE C COATED FUSED SILICA OPTIC FOR 1050-1620nm £181
                VPD-AS-16KF DN16KF DEMOUNTABLE VIEWPORT WITH ACCU-SOL GLASS £74
                  VPD-AS-40KF DN40KF DEMOUNTABLE VIEWPORT WITH ACCU-SOL GLASS £85
                    VPD-FS-40KF DN40KF DEMOUNTABLE VIEWPORT WITH UNCOATED FUSED SILICA OPTIC £159
                      VPD-FSUV-40KF DN40KF DEMOUNTABLE VIEWPORT WITH UV COATED FUSED SILICA OPTIC FOR 290-370nm £170
                        VPD-FSA-40KF DN40KF DEMOUNTABLE VIEWPORT WITH TYPE A COATED FUSED SILICA OPTIC FOR 350-700nm £181
                          VPD-FSB-40KF DN40KF DEMOUNTABLE VIEWPORT WITH TYPE B COATED FUSED SILICA OPTIC FOR 650-1050nm £181
                            VPD-FSC-40KF DN40KF DEMOUNTABLE VIEWPORT WITH TYPE C COATED FUSED SILICA OPTIC FOR 1050-1620nm £181
                              VP-RGAS-16 REPLACEMENT ACCU-SOL GLASS FOR DN16CF/KF DEMOUNTABLE VIEWPORT £30
                                VP-RGAS-40 REPLACEMENT ACCU-SOL GLASS FOR DN40CF/KF DEMOUNTABLE VIEWPORT £34
                                  VP-RFS-40 REPLACEMENT UNCOATED FUSED SILICA OPTIC FOR DN40CF/KF DEMOUNTABLE VIEWPORT £81
                                    VP-RFSUV-40 REPLACEMENT UV COATED FUSED SILICA OPTIC FOR DN40CF/KF DEMOUNTABLE VIEWPORT - 290-370nm £92
                                      VP-RFSA-40 REPLACEMENT TYPE A COATED FUSED SILICA OPTIC FOR DN40CF/KF DEMOUNTABLE VIEWPORT - 350-700nm
                                        VP-RFSB-40 REPLACEMENT TYPE B COATED FUSED SILICA OPTIC FOR DN40CF/KF DEMOUNTABLE VIEWPORT - 650-1050nm
                                          VP-RFSC-40 REPLACEMENT TYPE C COATED FUSED SILICA OPTIC FOR DN40CF/KF DEMOUNTABLE VIEWPORT - 1050-1620nm £103
                                            VP-RVO16 REPLACEMENT VITON O-RING FOR DN16CF/KF DEMOUNTABLE VIEWPORT £103
                                              VP-RVO40 REPLACEMENT VITON O-RING FOR DN40CF/KF DEMOUNTABLE VIEWPORT £103
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