John Moncrieff Ltd
01577 864870 enquiries@jmoncrieff.co.uk
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Metaglas Type 64 Round Head

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

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

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

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...

Mica Shields

Mica Shields

SKU: Mica Shields

John Moncrieff — Mica Shields for Gauge Glass Protection When working with steam, hot alkaline, or acidic solutions, protecting your gauge glass is critical for maintaining system saf...

Pressed Glass Production - Borosilicate Glass

Pressed Glass Production - Borosilicate Glass

SKU: Pressed Glass Production - Borosilicate Glass

Borosilicate, often referred to by the more popular name, Pyrex.  It is the ideal material for pressed glass products that are exposed to heat or chemical attack.Key Information for borosilicate...

Process Level Gauge - Illuminators

Process Level Gauge - Illuminators

SKU: Process Level Gauge - Illuminators

EEx Illuminator — Explosion-Proof Lighting for Level Gauges The EEx-rated Illuminator provides safe, efficient, and concentrated lighting for level gauge applications in h...

Quartz Glass

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

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

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...

Steam Level Gauge - Bi-Colour

Steam Level Gauge - Bi-Colour

SKU: Steam Level Gauge - Bi-Colour

Bi-Colour Steam Level Gauge — Precision Visibility for High-Pressure Steam Systems The Bi-Colour Steam Level Gauge is designed specifically for high-pressure boilers operating up...

SW1 Wiper

SW1 Wiper

SKU: SW1 Wiper

SW1 Wiper – Manual Internal Cleaning for Circular Sight Glass Assemblies The SW1 Wiper is a precision-engineered manual cleaning device designed for use with circular sigh...

Technical Application for Glass Rods

Technical Application for Glass Rods

SKU: Glass Rods - Technical Application

John Moncrieff — Technical Applications for Glass Rods Explore the endless potential of glass rods, a versatile and precision-engineered material used across a wide range of ...

Tubular Gauge Glass - Heavy Wall

Tubular Gauge Glass - Heavy Wall

SKU: Tubular Gauge Glass - Heavy Wall

Extra-Heavy Wall Tubular Gauge Glass John Moncrieff Ltd supplies extra-heavy wall tubular gauge glass engineered to perform under extreme pressure conditions — delivering c...

VISULEX Non-Ex Camera Type K55-HD/K55-4K

VISULEX Non-Ex Camera Type K55-HD/K55-4K

SKU: VISULEX Non-Ex Camera Type K55-HD/K55-4K

VISULEX Non-Ex Camera Type K55-HD / K55-4K The VISULEX K55-HD / K55-4K cameras are engineered for high-clarity visual monitoring of industrial processes in non-hazardous...

8mm Bore Safety Relief Valve 818881283

8mm Bore Safety Relief Valve 818881283

SKU: 818881283

8mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & GasesNotes:Relieving pressure is set at +10%Reseating pressure is set at -10%FLOW TABLEGas (Air)Pressure (bar g.)3.0...

ASL57 LED Ex

ASL57 LED Ex

SKU: ASL57 LED Ex

ASL57 LED Ex – High-Output Illumination for Hazardous Process Environments Engineered for explosive gas and dust zones, the ASL57 LED Ex delivers powerful, focused illumi...

Blown Glass Production - Borosilicate Glass

Blown Glass Production - Borosilicate Glass

SKU: Blown Glass Production - Borosilicate Glass

We can offer blown glass in borosilicate glass which has an excellent heat and chemical resisting properties. It is principally used for scientific and engineering applications. Blown borosilicate gla...

Composite Type C – Bi-directional

Composite Type C – Bi-directional

SKU: Composite Type C – Bi-directional

Composite Type C – Bi-directional Bursting Disc The Composite Type C – Bi-directional bursting disc provides dual-direction protection, making it an optimal solution for s...

Conturax® Special Profiles Glass Tubes

Conturax® Special Profiles Glass Tubes

SKU: Conturax Special Glass Tubing

Conturax® Standard Glass Tubes – Special Profiles Conturax® Standard Glass Tubes are precision-engineered products designed to meet the demanding requirements of various industries. ...

D Orifice Leser Valve 1" #300 x 2" #150 5262.0022

D Orifice Leser Valve 1" #300 x 2" #150 5262.0022

SKU: 5262.0022

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

DIN 28121 Circular Sight Glass Fitting

DIN 28121 Circular Sight Glass Fitting

SKU: DIN 28121 Circular Sight Glass Fitting

DIN 28121 Circular Sight Glass Fitting John Moncrieff’s DIN 28121 circular sight glass fittings are precision-manufactured assemblies designed for bolting directly on...

DN32 LGS HI-FLOW Relief Valve H3632A3D67

DN32 LGS HI-FLOW Relief Valve H3632A3D67

SKU: H3632A3D67

32mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and SteamNotes:Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (or...

DN32 LGS Relief Valve L3632A3367

DN32 LGS Relief Valve L3632A3367

SKU: L3632A3367

32mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas & SteamNotes:Maximum Pressure when used on saturated steam us 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (...

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Unit 5 Clashburn Road
Bridgend Industrial Estate
Kinross
Scotland
KY13 8GB
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