{"id":7108,"date":"2025-10-16T14:20:42","date_gmt":"2025-10-16T14:20:42","guid":{"rendered":"https:\/\/www.pecta.pt\/produto\/tubular-sight-glass-type-622-pn-16-din-en-iso-228-1\/"},"modified":"2026-03-31T13:39:58","modified_gmt":"2026-03-31T13:39:58","slug":"tubular-sight-glass-type-622-pn-16-din-en-iso-228-1","status":"publish","type":"product","link":"https:\/\/www.pecta.pt\/en\/produto\/tubular-sight-glass-type-622-pn-16-din-en-iso-228-1\/","title":{"rendered":"Tubular Sight Glass Type 622 – PN 16 – DIN EN ISO 228-1"},"content":{"rendered":"
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The glass is encapsulated between two high-quality flanges<\/strong>, in stainless steel or carbon steel<\/strong>, enabling comprehensive visual monitoring of the system<\/strong>.<\/p>\n

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  • The standard version features flanges in stainless steel 1.4571 (316Ti)<\/strong>, with excellent corrosion resistance and durability<\/strong> in industrial applications.<\/li>\n
  • For less demanding environments, there is an option with flanges in P265GH<\/strong>.<\/li>\n
  • Upon request, it is possible to use special materials<\/strong> such as Hastelloy\u00ae, duplex steels or other high-performance alloys.<\/li>\n<\/ul>\n

    The glass tube<\/strong> is made of industrially tested borosilicate 3.3<\/strong>, according to DIN ISO 3585<\/strong>, offering high thermal and chemical resistance<\/strong> and excellent optical properties<\/strong>.<\/p>\n

    The sealing of the glass cylinder<\/strong> is achieved with individually selectable flat gaskets<\/strong>, from classic fibre seals<\/strong> to special materials such as PTFE (Teflon\u00ae), NBR, novaphit\u00ae MST-XP or KlingerSil\u00ae C4400<\/strong>, ensuring optimal adaptation to the medium, temperature and pressure<\/strong>.<\/p>\n

    Thanks to the precise coordination between flange, gasket and glass<\/strong>, the assembly is virtually dead-space-free<\/strong>, making it suitable for processes with high hygienic requirements<\/strong>.<\/p>\n

    For areas with increased mechanical risk<\/strong>, such as installation under walkways<\/strong>, we recommend the use of impact protection covers<\/strong>, which protect the glass from falling objects and minimise the risk of unexpected failures or damage<\/strong>.<\/p>\n

    TECHNICAL DATA \u2013 Tubular Sight Glass Type 622<\/span><\/h5>\n<\/div>\n
    \n\n\n\n\n\n\n\n\n\n
    Flange Material:<\/strong><\/td>\nStainless Steel (316Ti) \u2013 1.4571
    \nOther alloys according to customer specifications<\/td>\n<\/tr>\n
    Form:<\/strong><\/td>\nTubular Sight Glass<\/td>\n<\/tr>\n
    Gaskets:<\/strong><\/td>\nFrenzelit novaphit\u00ae MST XP
    \nKlingerSil\u00ae C4400
    \nGarlock Gylon\u00ae
    \nPTFE (pure or modified)
    \nMore than 50 other sealing materials available upon request<\/td>\n<\/tr>\n
    Nominal Size (NPS):<\/strong><\/td>\n3\/8″ to 2″<\/td>\n<\/tr>\n
    Nominal Pressure (PN):<\/strong><\/td>\nPN16<\/td>\n<\/tr>\n
    Temperature \/ Glass:<\/strong><\/td>\nup to 280 \u00b0C with borosilicate glass DIN 7080<\/td>\n<\/tr>\n
    Options: <\/strong><\/td>\nCustomised overall lengths according to application.
    \nImpact protection covers made of PETg.
    \nImpact protection covers made of perforated plate, for locations subject to high mechanical risks.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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