{"id":7389,"date":"2025-04-03T15:49:24","date_gmt":"2025-04-03T15:49:24","guid":{"rendered":"https:\/\/www.pecta.pt\/produto\/circular-sight-glass-320-pn-10-16-din-28120\/"},"modified":"2025-04-03T15:49:24","modified_gmt":"2025-04-03T15:49:24","slug":"circular-sight-glass-320-pn-10-16-din-28120","status":"publish","type":"product","link":"https:\/\/www.pecta.pt\/en\/produto\/circular-sight-glass-320-pn-10-16-din-28120\/","title":{"rendered":"Circular Sight Glass 320 – PN 10\/16 – DIN 28120"},"content":{"rendered":"
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With the Circular Sight Glass 320, we go beyond the DIN 28120<\/b> specifications, offering this model in special dimensions such as DN 250 and above<\/b>. These diameters, not specified in the standard, are also developed in full compliance with DIN 28120 and DIN 7080 (or similar), ensuring that even in such specific cases, the limits can be applied according to the standard. <\/p>\n

The Sight Glass 320 is constructed from high-quality stainless steel<\/b> 1.4571 (316Ti), highly valued by our customers. The glass material used is industry-proven borosilicate glass 3.3, in accordance with DIN 7080 (or similar). The connection is sealed with flat gaskets adapted to your needs<\/b> from an extensive range of materials; in addition to the widely used fiber gaskets, we also offer more sophisticated materials such as PTFE (Teflon\u00ae), NBR, graphite, and many other brand-name gaskets. <\/p>\n

If the maximum operating temperature of 280\u00b0C does not meet your requirements, or if the process conditions pose a problem even for the highly resistant borosilicate glass, a mica or FEP protective screen specially adapted for the connection offers additional protection against steam and aggressive chemicals, such as alkalis up to a pH value of 14.<\/p>\n

Like other circular sight glasses, 317<\/a> and 318<\/a>, the 320 model can be equipped with SGW or SWII type brushes (with flexible shaft), spraying devices, and lights upon request.<\/p>\n

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TECHNICAL DATA – SIGHT GLASS 320<\/h4>\n\n\n\n\n\n\n\n\n
Flange Material:<\/strong><\/td>\nBase Flange: 1.4571 (standard)
\nCover Flange: 1.4571 (standard)
\nOther materials on request<\/td>\n<\/tr>\n
Design:<\/strong><\/td>\nIn accordance with DIN 28120<\/td>\n<\/tr>\n
Seals:<\/strong><\/td>\nKlingerSil\u00ae C4400
\nPTFE, FKM, NBR, Silicone, EPDM, Graphite<\/td>\n<\/tr>\n
Nominal Size:<\/strong><\/td>\nDN25 to DN300
\nDN200 to DN300 (similar to DIN 28120)<\/td>\n<\/tr>\n
Temperature \/ Glass:<\/strong><\/td>\nUp to 280\u00b0C<\/strong> with DIN 7080 borosilicate glass
\nUp to 150\u00b0C<\/strong> with DIN 8902 soda-lime glass
\nUp to 400\u00b0C<\/strong> with non-tempered borosilicate glass<\/td>\n<\/tr>\n
Options:<\/strong><\/td>\nSGW cleaning brush in PTFE or silicone
\nLED lighting for EX and Non-EX zones
\nSV1 spraying device
\nO-ring seals (for vacuum applications)
\nPLEXIGLAS\u00ae \u2013 impact protection
\nVA perforated impact protection
\nFEP sight glass protection (for high pH values)
\nMica protection (up to 320\u00b0C with DIN 7080 borosilicate glass)
\nDouble glazing (320D)
\nSpecial designs on request<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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