List of products by brand Noris Armaturen

Noris Armaturen – Technical profile of a sight flow indicator, tank sight glass and strainer manufacturer

Noris Armaturen is a German manufacturer of visual flow indication and pipeline protection equipment. Its range includes sight flow indicators, tank sight glass fittings, Y strainers, basket strainers, accessories, glass discs, gaskets and lighting units.

The products represented through Philippopoulos S.A. are mainly:

  • double-window sight flow indicators,
  • single-window flow indicators,
  • flow indicators with flap, spinner or ball,
  • high-pressure sight glasses,
  • DIN and ANSI flanged versions,
  • threaded and welded versions,
  • tank sight glasses,
  • Y strainers.

Sight flow indicators are used for local visual confirmation of flow, filling, colour, bubbles, foaming or suspended solids. They are not flowmeters and do not replace calibrated measurement instruments. Their role is direct field observation by operators or maintenance personnel.

Double-window indicators allow observation through the process line. Versions with flap, spinner or ball are useful when the medium is transparent and flow movement is not obvious. High-pressure versions must be selected according to pressure, temperature, glass type and sealing arrangement.

Tank sight glasses are installed on vessels and tanks for local visual inspection. In pressure vessels, they must be treated as part of the pressure boundary. Material, gasket, glass, pressure, temperature and maintenance method must be verified.

Y strainers are used to protect pumps, control valves, meters and downstream equipment from solids, welding debris, rust or commissioning particles. Selection requires mesh size, pressure drop, access for cleaning, drain arrangement and body material.

Noris products are relevant for process engineers, maintenance departments, steam specialists and plant operators requiring simple, mechanical visual indication and protection of industrial piping systems.

Sight Flow Indicators - Protective Fence | Noris - Noris Armaturen

Sight Flow Indicators - Protective Fence | Noris

Sight Flow Indicators - Protective Fence | Noris
Noris Armaturen
Protective Mesh Guard Noris for Sight Flow Indicators The Noris protective mesh guard provides mechanical protection for glass plates in sight flow indicators and circular tank sight glasses. It is not a standalone indicator or measuring device; rather, it is installed externally to limit glass damage from impact, tools, metallic objects, or operational...
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Tank Sight Glass type 120 | Noris - Noris Armaturen

Tank Sight Glass type 120 | Noris

Tank Sight Glass type 120 | Noris
Noris Armaturen
Tank Sight Glass Noris Type 120 The Noris Type 120 is a circular tank sight glass designed for direct welding onto the shell of a closed vessel. It is used for visual inspection or illumination of the internal space in tanks, boilers, and silos where localized monitoring of foaming, flow, deposits, color, or liquid condition is required. Technical...
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Tank Sight Glass type 118 | Noris - Noris Armaturen

Tank Sight Glass type 118 | Noris

Tank Sight Glass type 118 | Noris
Noris Armaturen
Tank Sight Glass Noris Type 118 The Noris Type 118 is a circular low-pressure sight glass designed for visual inspection and illumination of the interior of closed vessels, such as tanks, boilers, and silos. The assembly is intended for direct welding to the vessel shell and consists of a base, flange-type cover, glass disc, gaskets, and bolts. Operating...
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Tank Sight Glass type 119 | Noris - Noris Armaturen

Tank Sight Glass type 119 | Noris

Tank Sight Glass type 119 | Noris
Noris Armaturen
Tank Sight Glass Noris Type 119 The Noris Type 119 is a circular tank sight glass, PN 6, designed for visual inspection or illumination of the interior of closed vessels such as tanks, boilers, and silos. Installation is performed by welding the base flange directly to the vessel shell. Operating Conditions Operating pressure: up to 6 bar Pressure...
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Tank Sight Glass type 220 | Noris - Noris Armaturen

Tank Sight Glass type 220 | Noris

Tank Sight Glass type 220 | Noris
Noris Armaturen
Tank Sight Glass Noris Type 220 The Noris Bauform 220 is a rectangular sight glass designed for direct welding onto tanks, vessels, and silos. It is intended for local visual observation of liquid surfaces and is not a continuous level measurement device. Operating Conditions Nominal pressure: 16 bar / PN 16 Temperature: up to 243 °C, suitable for...
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Tank Sight Glass type 225 | Noris - Noris Armaturen

Tank Sight Glass type 225 | Noris

Tank Sight Glass type 225 | Noris
Noris Armaturen
Tank Sight Glass Noris Type 225 The Noris Bauform 225 is a longitudinal rectangular sight glass designed for direct welding onto tanks, vessels, and silos. It is intended for local visual observation of liquid level or interface, not for continuous level measurement or remote indication. Operating Conditions Design pressure: 3 / 6 / 25 bar Temperature:...
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Tank Sight Glass type 127 | Noris - Noris Armaturen

Tank Sight Glass type 127 | Noris

Tank Sight Glass type 127 | Noris
Noris Armaturen
Tank Sight Glass Noris Type 127 The Noris Type 127 is a threaded sight glass designed for visual inspection in tanks, containers, and pipelines. Its geometry corresponds to a threaded pipe connection similar to DIN 11851. Product documentation classifies it under DIN standards, BSP connection, and PN 6 pressure class. Operating Conditions Operating...
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Tank Sight Glass type 230 | Noris - Noris Armaturen

Tank Sight Glass type 230 | Noris

Tank Sight Glass type 230 | Noris
Noris Armaturen
Type 230 Sight Glass with Weld-Neck Flanges The Noris Type 230 is a circular sight glass with weld-neck flanged ends, designed for welded installation on tanks, vessels, and pipelines. It is intended for direct visual inspection of flow, liquid or gas presence, color, foaming, and medium clarity. Documentation specifies suitability for both liquid and gas...
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Glass Gauge Cleaning System type 190 | Noris - Noris Armaturen

Glass Gauge Cleaning System type 190 | Noris

Glass Gauge Cleaning System type 190 | Noris
Noris Armaturen
Noris Type 190 – Glass Gauge Cleaning System The Noris Bauform 190 is not a standalone glass gauge. It is a mechanical wiper system for cleaning the glass surface of tank level gauges according to DIN 28120, specifically where process media cause crystallization, dust, sludge, product film, or deposits. The system can be integrated into Noris Bauform 118,...
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Side-Mounted Sight Glass Wiper type 195 | Noris - Noris Armaturen

Side-Mounted Sight Glass Wiper type 195 | Noris

Side-Mounted Sight Glass Wiper type 195 | Noris
Noris Armaturen
Noris Type 195 – Side-Mounted Sight Glass Wiper The Noris Bauform 195 is a mechanical wiper designed for cleaning the internal surface of sight glasses, with side entry installation. It is not a standalone sight glass or level gauge. The device is used where visibility is reduced due to condensate, product films, foam, solids, or deposits in pressure or...
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Glass Gauge Cleaning Sprayer type 198 | Noris - Noris Armaturen

Glass Gauge Cleaning Sprayer type 198 | Noris

Glass Gauge Cleaning Sprayer type 198 | Noris
Noris Armaturen
Noris Type 198 – Glass Gauge Cleaning Sprayer The Noris Bauform 198 is an internal spray cleaning device for glass gauge surfaces. It is not a standalone sight glass and does not function as a level measurement instrument. The unit is specified for applications where the glass indicator surface is contaminated by foam, condensate, dust, salts, slurry, or...
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Tank Sight Glass type 120-V | Noris - Noris Armaturen

Tank Sight Glass type 120-V | Noris

Tank Sight Glass type 120-V | Noris
Noris Armaturen
Noris Type 120-V – Vacuum Sealing with O-ring The Noris Bauform 120-V is a specialized variant of the circular sight glass Bauform 120, equipped with O-ring sealing for vacuum operation. The primary function as a visual inspection device remains unchanged; the modification concerns the sealing system, enabling operation under negative pressure (vacuum)....
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Tank Sight Glass type 120-D-HZ | Noris - Noris Armaturen

Tank Sight Glass type 120-D-HZ | Noris

Tank Sight Glass type 120-D-HZ | Noris
Noris Armaturen
Sight Glass Noris Type 120-D-HZ The Noris Bauform 120-D-HZ is a specialized circular tank sight glass featuring double safety glazing and integrated heating. It is designed for visual inspection of vessel interiors where the external glass surface may fog due to humidity or temperature differentials. Documentation refers to this as “safe...
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Tank Sight Glass type 126-D-HZ | Noris - Noris Armaturen

Tank Sight Glass type 126-D-HZ | Noris

Tank Sight Glass type 126-D-HZ | Noris
Noris Armaturen
Noris Type 126-D-HZ – Double Glazing with Integrated Heating The Noris Bauform 126-D-HZ is an auxiliary double-glazing assembly with an integrated heating element, designed for circular sight glass indicators. It is specified for installations where the external glass surface is prone to fogging due to ambient humidity, low temperatures, or temperature...
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Tank Sight Glass - Fittings - 121 | Noris Armaturen - Noris Armaturen

Tank Sight Glass - Fittings - 121 | Noris Armaturen

Tank Sight Glass - Fittings - 121 | Noris Armaturen
Noris Armaturen
Tank Sight Glass Noris Type 121 The Noris Type 121 is a circular sight glass fitting per DIN 28121, designed for installation on existing DIN flanges. It is supplied pre-assembled and is bolted directly to the vessel’s flanged nozzle, with no welding required during installation. Operating Conditions Operating pressure: 10 bar or 25 bar Nominal sizes: DN...
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Tank Sight Glass type 121-A | Noris - Noris Armaturen

Tank Sight Glass type 121-A | Noris

Tank Sight Glass type 121-A | Noris
Noris Armaturen
Tank Sight Glass Noris Type 121-A The Noris Type 121-A is a circular sight glass assembly designed for direct mounting on existing ANSI flanges. It is used for visual inspection or illumination of the interior of closed vessels, such as tanks, boilers, and silos. The unit is supplied pre-assembled and bolts directly onto the flange connection. Technical...
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Tank Sight Glass type 121-H | Noris - Noris Armaturen

Tank Sight Glass type 121-H | Noris

Tank Sight Glass type 121-H | Noris
Noris Armaturen
Noris Type 121-H Sight Glass for Temperatures Above 200 °C The Noris Bauform 121-H is a circular sight glass engineered to DIN 28121 for applications where the standard Type 121 is unsuitable due to elevated temperatures. While the standard DIN 28121 series is limited to 200 °C, the Type 121-H utilizes pure graphite gaskets for sealing, enabling...
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Tank Sight Glass type 121-V | Noris - Noris Armaturen

Tank Sight Glass type 121-V | Noris

Tank Sight Glass type 121-V | Noris
Noris Armaturen
Noris Type 121-V Sight Glass for Vacuum Applications The Noris Bauform 121-V is a specialized circular sight glass, based on DIN 28121, designed with O-ring sealing for vacuum service. It is not a level measurement device but a static visual inspection component for tanks, vessels, and silos operating under negative pressure or alternating vacuum/pressure...
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Tank Sight Glass type 121-D | Noris - Noris Armaturen

Tank Sight Glass type 121-D | Noris

Tank Sight Glass type 121-D | Noris
Noris Armaturen
Tank Sight Glass Noris Type 121-D The Noris Type 121-D is a circular sight glass conforming to DIN 28121, designed for installation on existing DIN flanges. The 121-D variant differs from Type 121 by incorporating a dual safety window arrangement: each borosilicate glass disc is rated for full design pressure, ensuring that in the event of one disc...
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Spray System for Sight Glass type 121-I | Noris - Noris Armaturen

Spray System for Sight Glass type 121-I | Noris

Spray System for Sight Glass type 121-I | Noris
Noris Armaturen
Spray System for Sight Glass Noris Type 121-I The Noris Type 121-I is a spray assembly designed for circular tank sight glasses according to DIN 28121. It is not a standalone level gauge, but an auxiliary device for cleaning or rinsing the internal glass surface in cases of contamination by foam, solids, deposits, or condensates. Configurations Type A...
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Tank Sight Glass type 121-W | Noris - Noris Armaturen

Tank Sight Glass type 121-W | Noris

Tank Sight Glass type 121-W | Noris
Noris Armaturen
Tank Sight Glass Noris Type 121-W The Noris Type 121-W is a circular sight glass conforming to DIN 28121, designed for installation on existing flanges. It features an integrated wiper on the internal glass surface. Based on Bauform 121, this variant is specified where process media form films, solid deposits, or clouding that restrict visual inspection....
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Tank Sight Glass type 1205 | Noris - Noris Armaturen

Tank Sight Glass type 1205 | Noris

Tank Sight Glass type 1205 | Noris
Noris Armaturen
Noris Type 1205 – Manhole Cover with Integrated Sight Glass The Noris Type 1205 is a manhole or inspection cover equipped with an integrated sight glass. It is specified where both vessel access and direct visual inspection are required, eliminating the need for a separate sight glass opening. The design is compatible with DIN 28120 installation...
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Tank Sight Glass type 232 | Noris - Noris Armaturen

Tank Sight Glass type 232 | Noris

Tank Sight Glass type 232 | Noris
Noris Armaturen
Type 232 Noris Sight Glass with Male Thread The Noris Bauform 232 is a threaded sight glass with a male G / BSP connection, designed for direct installation into threaded ports on tanks, pipelines, or vessels. It is used for local visual inspection of flow, liquid or gas presence, color, foaming, and medium clarity in process applications. Operating...
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Borosilicate glass acc. to DIN 7080 | Noris - Noris Armaturen

Borosilicate glass acc. to DIN 7080 | Noris

Borosilicate glass acc. to DIN 7080 | Noris
Noris Armaturen
NORIS DIN 7080 – Round Borosilicate Observation Glasses NORIS DIN 7080 are round glass observation plates for flow indicators, sight glasses, and inspection windows in industrial lines. The material is borosilicate glass, specially toughened, ground, and polished for use under compressive load. The technical sheet specifies temperature use up to 280 °C...
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