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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...
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 83
SKU: Metaglas Type 83
METAGLAS® Type 83 — Aseptic Sight Glass for Pipe Coupling DIN 11864-1 Form A The METAGLAS® Type 83 is a precision-engineered aseptic sight glass designed for pipe couplings DIN...
Metaglas Type 99.KF
SKU: Metaglas Type 99.KF
METAGLAS® Type 99.KF — High Vacuum Metal-Fused Sight Glass The METAGLAS® Type 99.KF is a compact, high-integrity metal-fused sight glass engineered for high vacuum and pressure...
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...
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 79.ISO-K
SKU: Metaglas Type 79.ISO-K
METAGLAS® Type 79.ISO-K — Ultra-High Vacuum Sight Glass Assembly The METAGLAS® Type 79.ISO-K sight glass is engineered for ultra-high vacuum (UHV) environments, delivering the h...
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...
Metaglas Type 84
SKU: Metaglas Type 84
METAGLAS® Type 84 — Aseptic Flange Sight Glass (DIN 11864-2, Form A, Raised Lip) The METAGLAS® Type 84 is a hygienic aseptic flange sight glass designed to DIN 11864-2 (Form A)...
Borosilicate Glass
SKU: Borosilicate Glass
Borosilicate Sight Glass Discs Product Code: Borosilicate Glass Our premium borosilicate sight glass discs are engineered as high-performance replacements for...
Double Glass Sight Glass Fitting
SKU: Double Glass Sight Glass Fitting
Double Glass Sight Glass Fitting The Double Glass Sight Glass Fitting from John Moncrieff Ltd is engineered for applications demanding an extra level of operational securi...
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...
Metaglas Type 84.BF
SKU: Metaglas Type 84.BF
METAGLAS® Type 84.BF — Aseptic Flange Sight Glass with Notch (DIN 11864-2 Form A) The METAGLAS® Type 84.BF is a precision-engineered aseptic sight glass designed for flange conn...
Quartz Glass
SKU: Quartz Glass
Quartz Glass Quartz glass (SiO2) is a high-performance, single-component glass valued across scientific and industrial sectors for its purity, thermal stability, and exceptional optical c...
Rectangular and Obround Glass
SKU: Rectangular and Obround Glass
Rectangular & Obround Sight Glass Assemblies Engineered for dependable process visibility, our rectangular and obround sight glass plates deliver robust performance in fluid l...
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...
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...
Metaglas Type 98.ZIM
SKU: Metaglas Type 98.ZIM
METAGLAS® Type 98.ZIM — Integrated Sight Glass Cover Assembly The METAGLAS® Type 98.ZIM is a precision-engineered cover with an integral METAGLAS® fused sight glass, delivering...