• Bolt-on sight glass unit compatible with existing ANSI or DIN standard flanges
• Sizes available from 2 to 8 inches, conforming to ASTM standards
• Offers utilisation of borosilicate or quartz glass disc
• METAGLAS Safety Sight Glass disc available as a safer alternative.
• Accessory options include lights, wipers, and spray ring
• Materials: carton steel and stainless steel

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• Circular pad flange for welding into or onto vessel wall
• Complete with gaskets, glass disc and stud/bolts
• Nominal sizes: DN 50 to DN 200
• Viewing diameter: 80 to 225 mm
• Materials: stainless, carbon steels and specials

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• Light weight low profile fitting for atmospheric vessels (over the standard DIN 28120 format) for welding into or onto vessel wall
• Smaller outer diameter and cost effective alternative to DIN 28120
• Complete with gaskets, glass disc and screws
• Nominal sizes: DN 50 to DN 200
• Viewing diameter: 80 to 225 mm, operating pressure 1 or 2 bar
• Materials: stainless, carbon steels and specials

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• Circular flange assembly for bolting straight onto weld pad/nozzle flange
• Complete with fully gasketed glass disc
• Nominal sizes: DN 40 to DN 200
• Viewing diameter: 48 to 150 mm
• Materials: stainless, carbon steels and specials

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• Twin glass discs design with supporting spacer ring
• Connecting sizes: PN 10/16, withstands max. rated pressure and temperature independently
• Ideal for viewing of internals of enclosed systems
• Can withstand pressure up to 10 bar and temperatures up to 280°C
• Combinable with Lumiglas luminaires for use in both hazardous and non-hazardous areas
• Materials: stainless, carbon steels and specials

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• DIN 11851 for welding into or onto vessel wall
• Complete with glass disc, gaskets and slotted cover nut
• Nominal sizes: DN 50 to DN 150
• Viewing diameter: 50 to 150 mm
• Materials: stainless and special steels

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• Similar to DIN 11864.1, designed for aseptic use
• Used for process observation in closed systems
• Applications in pharmaceutical and food industries
• Handles pressures up to 25 bar and temperatures around 300°C
• Component materials: stainless steel, METAGLAS®, borosilicate glass
• Supplies include welding nozzle and O-ring gasket

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• For welding into or onto vessel wall
• Complete with fully gasketed tongue-shaped glass plate and bolting
• Sizes: 250 to 1000 mm long, 70 mm wide, viewing slot 18 mm
• Materials: stainless, carbon steels and specials
• Also available with closed base frame for use as external liquid level indicator

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• Oval sight glass fitting for welding onto vessel walls
• Comes complete with fully gasketed tongue-shaped glass plate and bolting
• Materials include stainless steel, carbon steels, and other specialized materials
• Nominal pressures range: PN 2.5 / PN 6 / PN 10 and PN 25

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• Hinged sight glass frame available with or without luminaire
• Construction suitable for non-hazardous areas, extendable to food processing
• Safety for pressure adjustments and light exposure emphasized
• Dust and waterjet proof, complying with IP 65
• Max. vessel temperature set at 200°C with borosilicate glass
• Fitting options: weld flange or bolt-on flange
• Part elements include corrosion-resistant die-cast aluminum and toughened glass.

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