Sight Glass Fittings

Sight Glass Fittings: Your Window into Process Vessels


Sight glasses, also known as sight windows or view ports, offer a clear view into the inner workings of process vessels and tanks. These essential components consist of two flanges bolted together, encasing a glass disc securely sealed with gaskets. They provide operators with a visual means to monitor process stages, inspect media, and observe liquid levels.


Applications Abound:

Sight glasses find widespread application in various industries, including:

  • Pressure Vessels
  • Tanks
  • Silos
  • Stirred Vessels
  • Separators
  • Pipelines


Beyond the Basics:

At John Moncrieff, we go beyond standard sight glasses to provide a comprehensive range of accessories for your process vessels. These include:

  • Wiper Systems: Maintain clear visibility even in challenging conditions.
  • Sight Glass Luminaires: Illuminate the viewing area for optimal observation.
  • Cameras: Capture and record process visuals for analysis and documentation.
  • Spare Glass and Gaskets: Ensure uninterrupted operation and easy maintenance.


Trust John Moncrieff for Your Sight Glass Needs

When it comes to sight glasses and related accessories, John Moncrieff is your trusted partner. Our expertise and commitment to quality ensure that you receive the best solutions for your process monitoring requirements. Contact us today to discuss your specific needs and explore how our products can enhance your operations.

Sight Glass Fittings | Products

Circular Sight Glass Fitting - VETROLUX screwed dairy sight glass fittings similar to DIN 11851, PN 6, series SSA

Circular Sight Glass Fitting - VETROLUX screwed dairy sight glass fittings similar to DIN 11851, PN 6, series SSA

SKU: VETROLUX screwed dairy sight glass

Especially suited for use in food processing, cosmetic and pharmaceutical applications where a product or process has to be observed or controlled inside stirred vessels, tanks, dryers, columns, centr...

Circular Sight Glass Fitting for Pressure Rating PN0 (Lightweight Version)

Circular Sight Glass Fitting for Pressure Rating PN0 (Lightweight Version)

SKU: Circular Sight Glass Fitting for Pressure Rating PN0

Used where a product or process has to be observed or controlled inside stirred vessels, tanks, dryers, columns, silos, centrifuges, mixers, evaporators, pipelines.MOUNTING:The circular flange or pad...

Circular Sight Glass Fitting to DIN 28120 or similar for Pressure Ratings from PN 2.5 to PN 16

Circular Sight Glass Fitting to DIN 28120 or similar for Pressure Ratings from PN 2.5 to PN 16

SKU: VETROLUX sightglass fitting to DIN 28120

Used where a product or process has to be observed or controlled inside stirred vessels, tanks, dryers, columns, silos, centrifuges, mixers, evaporators, pipelines.MOUNTING:The circular flange or pad...

Circular Sight Glass Fitting to DIN 28121 or Similar

Circular Sight Glass Fitting to DIN 28121 or Similar

SKU: Circular Sight Glass Fitting to DIN 28121

Used where a product or process has to be observed or controlled inside stirred vessels, tanks, dryers, columns, silos, centrifuges, mixers, evaporators, pipelines.MOUNTING:The pre-mounted circular f...

Rectangular Sight Glasses RSG (R, RR) "D" ended

Rectangular Sight Glasses RSG (R, RR) "D" ended

SKU: Rectangular Sight Glasses RSG (R, RR) "D" ended

Used for the observation of the liquid level, interface or a reaction within stirred vessels, reactors, silos, storage tanks, dryers, columns, evaporators etc. in all process industries.MOUNTING:The...

Hinged Sight Glass Fitting Series KSG

Hinged Sight Glass Fitting Series KSG

SKU: Hinged Sight Glass Fitting Series KSG

The hinged sightglasses offer a quick and easy opening sightglass unit without or with illumination, in cases where an addition of components is required or samples need to be taken on a regular or s...

Sightflow Indicators Series S-VA

Sightflow Indicators Series S-VA

SKU: Sightflow Indicators Series S-VA

Used for the observation of liquid flow in pipelines in all process industries.MOUNTING:Various ranges for welding into pipelines (series S-VA, S-St) or bolting with flange system (series FDG, FDS, F...

Metal Fused Sight Glass Fittings

Metal Fused Sight Glass Fittings

SKU: Metal Fused Sight Glass Fittings

ADVANTAGES:- High security- For sterile applicationsVERSIONS:Metal fused sightglasses for Triclamp fittings:- for mounting on Triclamp fittings to DIN 32676 / ISO 2852- available from DN 10 to 300- a...

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