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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 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 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...

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 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)...

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...

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...

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...

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

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