{"id":7087,"date":"2025-10-24T14:16:45","date_gmt":"2025-10-24T14:16:45","guid":{"rendered":"https:\/\/www.pecta.pt\/produto\/type-591-flow-sight-glass-3-viewports-din-en-1092-1\/"},"modified":"2026-03-31T13:08:01","modified_gmt":"2026-03-31T13:08:01","slug":"type-591-flow-sight-glass-3-viewports-din-en-1092-1","status":"publish","type":"product","link":"https:\/\/www.pecta.pt\/en\/produto\/type-591-flow-sight-glass-3-viewports-din-en-1092-1\/","title":{"rendered":"Type 591 Flow Sight Glass – 3 Viewports – DIN EN 1092-1"},"content":{"rendered":"
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The presence of a third viewing window<\/strong> offers a significant advantage<\/strong>:
it allows for illuminating the moving fluid<\/strong>, providing optimal process observation<\/strong>.
Furthermore, this third window offers the possibility of integrating measurement systems or cameras<\/strong>, making the Type 591 particularly versatile in advanced control and monitoring environments.<\/p>\n

The Type 591<\/strong> is designed for operating pressures up to 400 bar<\/strong> and can be easily installed between flanges according to DIN EN 1092-1<\/strong>.
Thanks to its standardized lengths according to DIN EN 558-1<\/strong>, it is ideal for installation in existing systems<\/strong>, including the replacement of already installed components.<\/p>\n

Even with larger nominal diameters<\/strong>, the Type 591 allows for high operating pressures<\/strong>, ensuring exceptional safety and durability<\/strong>.<\/p>\n

The standard version is equipped with high-quality borosilicate glass<\/strong> , suitable for operating temperatures up to 280 \u00b0C<\/strong>.
With the addition of a mica protection disc<\/strong>, it is possible to reach up to 320 \u00b0C<\/strong> when combined with MAXOS\u00ae safety glass<\/strong>, according to DIN 7080<\/strong>.<\/p>\n

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TECHNICAL DATA \u2013 Type 591 Flow Sight Glass<\/h4>\n\n\n\n\n\n\n\n\n\n
Flange Material:<\/strong><\/td>\n316Ti Stainless Steel – 1.4571 (standard)
\n316L Stainless Steel – 1.4404
\nCarbon steel
\nOther materials on request<\/td>\n<\/tr>\n
Form:<\/strong><\/td>\nFlow Sight Glass<\/td>\n<\/tr>\n
Gaskets:<\/strong><\/td>\nKlingerSil\u00ae C4400
\nPTFE, FKM, NBR, Silicone, EPDM
\nGraphite<\/td>\n<\/tr>\n
Nominal Size (DN):<\/strong><\/td>\nDN50 \u2013 DN200
\n(larger sizes available as special design)<\/td>\n<\/tr>\n
Nominal Pressure (PN):<\/strong><\/td>\nPN16 \u2013 PN400
\n(higher pressures upon request)<\/td>\n<\/tr>\n
Temperature \/ Glass:<\/strong><\/td>\nUp to 280 \u00b0C with DIN 7080 borosilicate glass<\/td>\n<\/tr>\n
Options:<\/strong><\/td>\nSGW cleaning brush (PTFE or silicone)
\nLED lighting (for EX and Non-EX zones)
\nSight glass protection with FEP film (for high pH)
\nMica protection
\nSpecial designs on request<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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