Manhole sight glass type 325 PN 6/10/16 Flange mounting according to DIN EN 1092-1

Material: Base flange: 1.4571 (factory standard) Cover flange: 1.4571 (factory standard) Sight glass: borosilicate glass to DIN 7080 Soda-lime glass according to DIN 8902 Seal:  Klingersil or as desired Screws:  A4-70 Shape: similar to DIN 28120 but for pressureless application Nominal size:  DN50 up to DN200 Nominal pressure: PN 0 - for unpressurised operation Temperature: With borosilicate glass up to max. 280 ° C With soda lime glass up to max. 150 ° C Options: Optional versions are possible.   Product informationOur round sight glasses type 317 (PN 0) are welded onto or into a container wall to allow observation or lighting of the inside of the container. ACI sight glasses of type 317 were designed, based on DIN 28120, as a lightweight version for pressureless operation. A sight glass made of chemically highly resistant borosilicate glass DIN 7080 (or according to customer requirements) is clamped between two high-quality stainless steel flanges and proven quality seals. Type 317, unlike types 318 and 320, is not designed as a pressure-retaining construction, but as a pure sight opening. This makes type 317 significantly lighter and flatter than other commercially available sight glasses. Despite the lower requirements, our sight glasses of type 317 are made from the same high-quality stainless steel 1.4571 (316Ti) that our customers have appreciated for years. As glass material, the industry-proven borosilicate glass according to DIN 7080 (or according to customer requirements) is used. The sealing of the fitting occurs with flat seals adapted to your needs from a wide range of materials. In addition to the common fiber material seals, this also offers more demanding materials such as PTFE (Teflon®), NBR, novaphit® MST-XP, KlingerSil® C4400, and many other branded seals. If the maximum operating temperature of borosilicate glass DIN 7080 does not meet your requirements, or if the process conditions pose a problem even for the highly resistant borosilicate glass, a mica protection cover specifically designed for the fitting offers additional protection against temperature and steam. FEP or Halar® coatings additionally protect the borosilicate glass from aggressive chemicals or alkalis. Like other sight glass fittings, type 317 can be equipped with a wiper type SGW, spray devices SVIII, or lamps upon request.

Material: Base flange and cover flange: RSt 37-2, H II, C 22.8, P250GH, P265GH, 1.4306 (F304L), 1.4404 (F316L), 1.4462 Duplex (F51), 14539 (Alloy 904 L), 1.4541 (F321) , 1.4571 (F316Ti) or according to customer specifications Sight glass:  borosilicate glass acc. to DIN 7080 Soda-lime glass acc. to DIN 8902 Seal:  Klingersil or as desired Screws:  A4-70 Shape:  according to DIN 28120 Nominal size: DN25 - DN250 Nominal pressure:  PN 10/16  (depending on size and material composition) Temperature:  with soda lime glass up to max. 150 ° C with borosilicate glass up to max. 280 ° C  with borosilicate & mica shield up to 320 ° C Higher operating temperatures on request Options:  Optional versions are possible.   Special construction/options: With wiper blades SWI or SWII With spray nozzle SV1 Double glass Double Glass with heating element With LED or halogen lights, ATEX certification available With protective coating, variant B of DIN 28120 With O-Ring seal High Temperature Version with quartz window Impact protection plexiglass shield More special constructions available on request   DN Da Di h1 h2 s kg Nm 25 115 48 16 25 10 2,9 30 40 150 65 16 30 12 5,0 55 50 165 80 16 30 15 6,0 55 80 200 100 20 30 20 10,3 55 100 220 125 22 30 25 11,5 55 125 250 150 25 30 25 15,2 64 150 285 175 30 36 30 23,5 107 200[1] 340 225 35 36 30 30,7 125 250[1] (similar to DIN) 395 280 40 40 45 44,6 107   [1] PN 10 only   Use our 360° 3D view to get a perfect allround look at our product. SHORT DESCRIPTION - TANK SIGHT GLASSES TYPE 320 ACCORDING TO DIN 28120 The ACI Tank Sight Glass Type 320 is a round tank sight glass to be welded on or into the wall of a pressure vessel. Type 320 is manufactured in full accordance with the construction rules of DIN 28120 and suitable for an operating pressure of PN10 or PN16. Due to DIN conformity Type 320 can easily be installed as a spare part for existing fittings complying with DIN 28120. Our tank sight glass fulfils all standard conditions including full vacuum compatibility and an operating pressure of up to 16 bar. Operating temperatures of up to 280°C are well within range of type 320. If a mica protection sheet is added, safe Operation at up to 300°C is possible! Of course, you can order matching mica sheets directly with your sight glass! Expaning upon the definitions of DIN 28120, we can offer Type 320 with special sizing of DN250 and larger, as well as high temperature compatible quartz windows and of course matching gaskets. Although these variants are not listed in the standard documents, design and manufacturing closely follows the regulations provided in DIN 28120 and DIN 7080, so the stated operating conditions can be completely relied upon. As for all our round tank sight glasses, our type 320 is optionally available with spray nozzles SVI, wipers of type SWI or type SWII (with flexible shaft) or light fixtures with LED or Halogen lights. You can find additional technical data, detailed descriptions and contact information further down on this page!