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Profile - Semi-circular Rod
SKU: Profile - Semi-circular Rod
The table below lists our standard glass rod diameters, each produced with precision tolerances to ensure consistent performance, optical clarity, and durability. Custom diameters and finishes...
DN25 LGS Relief Valve L3625A1336
SKU: L3625A1336
25mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas & SteamNotes:Maximum Pressure when used on saturated steam us 14.00 bar g. (203 psi g.)Overpressure = Set pressure +10...
DN50 LGS HI-FLOW Relief Valve H3650A1F26
SKU: H3650A1F26
50mm 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...
J Orifice Leser Valve 3" #300 x 4" #150 5262.1642
SKU: 5262.1642
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...
Profile - Flat Scalloped Rod
SKU: Profile - Flat Scalloped Rod
Below are the standard glass rod sizes in this series. Each rod is precision-engineered to meet strict dimensional tolerances and manufactured for durability, clarity, and performance. ...
DN32 LGS Relief Valve L3632A1366
SKU: L3632A1366
32mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas & SteamNotes:Maximum Pressure when used on saturated steam us 14.00 bar g. (203 psi g.)Overpressure = Set pressure +10...
K Orifice Leser Valve 3" #150 x 4" #150 5262.2022
SKU: 5262.2022
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...
K Orifice Leser Valve 3" #150 x 4" #150 5262.2024
SKU: 5262.2024
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...
DN40 LGS Relief Valve L3640A1396
SKU: L3640A1396
40mm 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% (...
DN50 LGS Relief Valve L3650A1426
SKU: L3650A1426
50mm 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% (...
K Orifice Leser Valve 3" #300 x 4" #150 5262.2034
SKU: 5262.2034
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...
DN65 LGS Relief Valve L3665A1516
SKU: L3665A1516
50mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas & SteamNotes:Maximum Pressure when used on saturated steam us 14.00 bar g. (203 psi g.)Overpressure = Set pressure +10...
K Orifice Leser Valve 3" #300 x 4" #150 5262.2032
SKU: 5262.2032
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...
L Orifice Leser Valve 3" #150 x 4" #150 5262.2324
SKU: 5262.2324
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...
L Orifice Leser Valve 3" #150 x 4" #150 5262.2322
SKU: 5262.2322
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...
Quartz - Half Glass Rods
SKU: Quartz - Half Glass Rods
High-Purity Quartz Glass Tubing: Exceptional Heat Resistance and Versatility Our high-purity quartz glass tubing, crafted from pure silica, combines superior clarity, durability,...
Quartz - Standard UV Block Glass Tubes
SKU: Quartz - Standard UV Block Glass Tubes
UV-Blocking Quartz Tubes: Protecting Against Harmful Radiation Our UV-blocking quartz tubes provide exceptional protection against harmful ultraviolet radiation. These Ce-doped...
Quartz Glass JGS3 - Advanced Infrared - Optimised Quartz
SKU: Quartz Glass - JGS3
JGS3 Quartz Glass: Advanced Infrared-Optimised Fused Silica JGS3 quartz glass is an advanced grade of fused silica designed for optical systems requiring broad spectral tra...
Quartz - Ozone Free Glass Tubes
SKU: Quartz - Ozone Free Glass Tubes
Ozone-Free Quartz Tubes: Safe and Efficient UV Solutions Our innovative ozone-free quartz tubes, doped with titanium, offer exceptional performance and safety. These advanced tu...
Quartz - Slotted Glass Rods
SKU: Quartz - Slotted Glass Rods
High-Purity Quartz Glass Tubing: Exceptional Heat Resistance and Versatility Our high-purity quartz glass tubing, crafted from pure silica, offers exceptional purity, clarity, and...
Quartz - Square Glass Tubes
SKU: Quartz - Square Glass Tubes
Premium Square Quartz Glass Tubes: Engineering Excellence Meets Unmatched Performance John Moncrieff’s Premium Square Quartz Glass Tubes combine precision engineering with outstan...
Quartz - Spiral Glass Tubes
SKU: Quartz - Spiral Glass Tubes
Precision-Engineered Spiral Quartz Glass Tubes: Advanced Industrial Solutions John Moncrieff’s Spiral Quartz Glass Tubes represent the pinnacle of precision engineering and materi...
Quartz - U-Shaped Glass Tubes
SKU: Quartz - U-Shaped Glass Tubes
U-Shaped Quartz Glass Tubes: Precision-Engineered Excellence for Advanced Industrial Applications John Moncrieff’s U-Shaped Quartz Glass Tubes are designed to deliver precision, d...
Quartz - Twin Glass Tubes
SKU: Quartz - Twin Glass Tubes
Twin Quartz Glass Tubes: Advanced Parallel Flow Solutions by John Moncrieff Ltd John Moncrieff’s Twin Quartz Glass Tubes are precision-engineered for applications requiring ...



















