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Circular Sight Glass
SKU: Circular Sight Glass
John Moncrieff — Sight Glass Materials & Selection Guide Selecting the correct sight glass material is essential for ensuring long-term performance, safety, and clarity under vary...
Glass Panels
SKU: Glass Panels
John Moncrieff — Custom Glass Processing & Finishing Services At John Moncrieff Ltd, we don’t just supply standard glass — we offer precision glass processing and finishing servic...
Low Pressure Sight Glass
SKU: Low Pressure Sight Glass
Low-Pressure Circular Sight Glass FittingsThese low-pressure sight glasses are designed for welding either into or onto vessel walls, offering a compact and cost-efficient alternative to the DIN 28120...
Metaglas Type 11.SW
SKU: Metaglas Type 11.SW
METAGLAS® Type 11.SW – Metal-Fused Sight Glass Flange with Wiper The METAGLAS® Type 11.SW combines precision-fused glass and steel construction with an integrated wiper mechanism...
Metaglas Type 211
SKU: Metaglas Type 211
glass lined vesselsconnection to DIN2501 or ANSI B16.5sight flow indicators to DIN3236, 3237
Metaglas Type 99.KF
SKU: Metaglas Type 99.KF
Exhibits no outgassing or contamination of most systemsExtremely compact constructionEasy, instruction free installationSecurity against total failureLong working timeSuitable for high vacuum and pres...
Motor Drive for Wipers
SKU: Motor Drive for Wipers
The Ex-class motor drive is mainly intended for operating wipers on sight glasses for short-term operation. For other applications it can also be used in long-term operation.Specifically developed for...
Quartz - Sight Glass
SKU: Quartz - Sight Glass
Quartz Sight Glass: Exceptional Clarity and High-Temperature Performance John Moncrieff’s Quartz Sight Glasses deliver outstanding optical clarity and durability under cont...
DIN 28120 Sight Glass
SKU: DIN 28120 Sight Glass
DIN 28120 Circular Flanged Sight Glass FittingsThese high-precision circular flanged sight glass assemblies, manufactured to DIN 28120 specifications, are designed for welding either into or onto ves...
Metaglas Type 62 NPT Soda-lime
SKU: Metaglas Type 62 NPT Soda-lime
METAGLAS® Type 62 NPT Soda-lime — Threaded Sight Glass for Oil Level Monitoring The METAGLAS® Type 62 NPT Soda-lime sight glass is a compact, high-integrity viewing window engineered ...
Metaglas Type 80.NA
SKU: Metaglas Type 80.NA
METAGLAS® Type 80.NA — METACLAMP® for Flush-Mounted NA-Connect™ Type 80.NA METACLAMP® is engineered to fit the flush-mounted NA-Connect™ system, delivering clear process visibili...
Metaglas Type 82
SKU: Metaglas Type 82
METAGLAS® Type 82 – Metal-Fused Sight Glass for Pipe Coupling (DIN 11851) The METAGLAS® Type 82 sight glass is engineered for pipe coupling installations to DIN 11851, providing a compact...
Quartz Glass
SKU: Quartz Glass
Quartz Glass: The Ultimate in Purity and PerformanceQuartz glass, also known as fused silica, is a highly pure form of silica glass renowned for its exceptional properties. Its unique characteristics...
Rectangular Sight Glass Fitting
SKU: Rectangular Sight Glass Fitting
For welding into or onto vessel wallComplete with fully gasketed glass plate and boltingSizes: 250 to 1000 mm long, 70 mm wide, viewing slot 18 mmOperating Temperature: 243°C with Borosilicate Glass t...
Metaglas Type 64 Round Head
SKU: Metaglas Type 64 Round Head
METAGLAS® Type 64 — Round Head Threaded Sight Glass (Flush-Mount, Oil Level) The METAGLAS® Type 64 Round Head is a flush-mounted, air-side threaded sight glass engineered for femal...
Metaglas Type 80.SW
SKU: Metaglas Type 80.SW
METAGLAS® Type 80.SW — Clamp-Fit Metal-Fused Sight Glass (DIN 32676 / ISO 2852) The METAGLAS® Type 80.SW is a metal-fused sight glass specifically designed for clamp fittings to D...
Metaglas Type 81
SKU: Metaglas Type 81
METAGLAS® Type 81 – Metal-Fused Sight Glass for Pipe Coupling (DIN 11851) The METAGLAS® Type 81 sight glass is a metal-fused, tapered design engineered for pipe couplings in accor...
Quartz Glass
SKU: Quartz Glass
Quartz glass is a one-component glass (SiO2). It is one of the most valuable materials for both science and industry. There is a distinction between synthetic and natural quartz glass. Synthetic quart...
Sapphire Glass
SKU: Sapphire Glass
Sapphire Glass: The Ultimate in Hardness and DurabilitySapphire glass, pure aluminium oxide, is renowned for its exceptional hardness and scratch resistance. Its unique properties make it an ideal ma...
SW1 Wiper
SKU: SW1 Wiper
For circular sight glass assemblies to DIN 28120 or similar as well as screwed sight glass assembliesFor manual cleaning, when required, of inside glass surface in sightports
Metaglas Type 177 ANSI
SKU: Metaglas Type 177 ANSI
METAGLAS® Type 177 ANSI – Metal-Fused Sight Glass for Flow Indicator Fittings The METAGLAS® Type 177 ANSI is a precision-engineered metal-fused sight glass designed for fl...
Metaglas Type 61 Metric / BSW
SKU: Metaglas Type 61 Metric / BSW
METAGLAS® Type 64 — Round Head Threaded Sight Glass (Flush-Mount, Oil Level) The METAGLAS® Type 64 Round Head is a flush-mounted, air-side threaded sight glass engineered for femal...
Metaglas Type 80.SL
SKU: Metaglas Type 80.SL
METAGLAS® Type 80.SL — Clamp-Fit Metal-Fused Sight Glass (DIN 32676 / ISO 2852) The METAGLAS® Type 80.SL is designed for clamp fittings to DIN 32676 / ISO 2852, offering a secur...
Soda-Lime Glass
SKU: Soda-Lime Glass
Soda-Lime Glass: A Versatile and Affordable ChoiceAs one of the most widely used glasses globally, soda-lime glass offers excellent optical clarity, cost efficiency, and ease of fabrication for a bro...