Circular sight glass fitting type 317 PN 0 - pressureless

Product catalog summary

Overview: Circular sight glass fittings, specifically type 317, are designed for observing and illuminating the interiors of closed containers such as boilers and tanks. These fittings are round flange types meant for welding and include a securely bolted sight glass plate.

Specifications: The sight glass fittings are pressureless (PN 0) and suitable for welding in or on containers, similar to DIN 28120 standards. They are available in nominal sizes ranging from DN 50 to DN 400.

Materials: The base flange is made of 1.4571 stainless steel. The glass options include borosilicate glass (DIN 7080), soda-lime glass (DIN 8902), and quartz glass. Gasket materials include PTFE, FKM, NBR, C4400, silicone, EPDM, and graphite. Screws are A2-70 / A4-70.

Operating Conditions: The maximum operating temperature depends on the glass and gasket materials, with borosilicate glass supporting up to 400°C. The maximum pressure is 0.49 barg.

Installation Notes: After welding the base flange, check for warping of the sealing surface and rework if necessary. Adhere to specified bolting torques. The working pressure must be verified with the pressure equipment according to AD2000 Leaflet B9.

Product Code Structure: The product code provides details on the type, nominal size, base flange material, glass type, gasket type, and any variants. For example, the code 11-317-100-1-1-4-000 represents a standard version with DN 100, borosilicate glass, and a C4400 gasket.

Optional Accessories: Accessories include round mica discs for temperatures up to 320°C, sight glass wipers with various materials, LED lights for Ex and non-Ex areas, and FEP protective screens for high pH environments.

Key Considerations: Ensure compatibility of materials with the media being observed. For aggressive media, consider FEP or Halar® coated sight glasses. For steam applications, use mica discs to protect the glass.

Catalog excerpts

Circular sight glass fitting type 317 PN 0 - pressureless-1

Circular sight glass fitting type 317 PN 0 -pressurelessFor welding in or on similar to DIN 28120 USAGE INSTALLATION NOTE Circular sight glass fittings are used to observe and illuminate the interior of closed containers (boilers, tanks, silos, etc.). Sight glass fittings of type 317 are round flange fittings for welding in or on, completed with a sight glass plate inserted and securely bolted between the gaskets. After welding the base flange, it must be checked whether the sealing surface has warped. If necessary, it must be reworked! Also note the specified torques for the bolting! The working pressure does not apply to the base flange; this must be checked together with the pressure equipment according to AD2000 Leaflet B9! DRAWING Materials 10112025 - Subject to technical changes and errors!

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Circular sight glass fitting type 317 PN 0 - pressureless-2

Circular sight glass fitting type 317 PN 0 -pressurelessFor welding in or on similar to DIN 28120 DN 10112025 - Subject to technical changes and errors! qe

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Circular sight glass fitting type 317 PN 0 -pressureless Type317 PRODUCTCODE Example for Explaining the Code Composition TYPE NOMINAL SIZE BASE FLANGE1 GLASS GASKET 1) Borosilicate glass according to DIN 7080 or similar. 2) Soda-lime glass according to DIN 8902 or similar. 4) Borosilicate glass2 + PTFE wiper SGW 5) Borosilicate glass2 + silicone wiper SGW 6) Soda-lime glass3 + PTFE wiper SGW 7) Soda-lime glass3 + silicone wiper SGW 8) Unhardened borosilicate glass G00) Borosilicate glass2 + mica protection 1) Cover flange according to quote / order confirmation EXAMPLE STRUCTURE Unless otherwise...

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Circular sight glass fitting type 317 PN 0 - pressureless-4

Circular sight glass fitting type 317 PN 0 pressureless QUICK OVERVIEW Custom manufacturing possible Accessories available OPERATING CONDITIONS Operating conditions depend on the choice of glass and gaskets: Quartz glass Borosilicate glass untempered Sight glass

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Circular sight glass fitting type 317 PN 0 pressureless OPTIONAL ACCESSORIES Round mica discs up to 320 °C with Borosilicate glass DIN 7080 Sight glass wiper with PTFE, silicone, EPDM or FKM wipers FEP protective screen / coating 10112025 - Subject to technical changes and errors! Powered by TCPDF (www.tcpdf.org)

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