LGF Level Gauge – Flat Glass (Reflex / Transparent)
Safe and positive visual level indication for pressurised vessels — high pressure, high temperature certified.
LGF Reflex/Transparent Flat Glass Level Gauges are designed for safe & positive visual indication of liquid level in vessels under high pressure & temperature conditions. Reflex Flat Glass has precision molded prismatic grooves on the inner surface — the liquid portion appears BLACK while vapour space appears Silvery-White. Transparent Flat Glass is used for interface services or where liquid is dirty or viscous.
Key Features
- Simple & rugged design with easy installation and maintenance
- Precision molded prismatic grooves for clear contrast (Reflex)
- Transparent type for interface or viscous liquid service
- Available in various body and cover materials
- Toughened sight glass for high pressure operation
- Multiple packing options: PTFE, CAF, CNAF, Graphoil SS reinforced
- C-C distance up to 4,000 mm
Applications
Specifications
| Type | Reflex / Transparent |
| Body Material | CS / SS304 / SS316 / Polypropylene |
| Cover Material | CS / SS304 / SS316 / FRP |
| Sight Glass | Toughened Glass |
| Packing | PTFE / CAF / CNAF / Graphoil SS Reinforced |
| Process Connection | Flanged / Threaded |
| Vent & Drain | Plug / Valve |
| Gauge Connection | Side-Side / Top-Bottom |
| Connection Orientation | Back / Left / Right / Vertical |
| Scale Material | Aluminium / SS304 / SS316 |
| C-C Distance | 300 to 4,000 mm |
| Max Operating Temp | 70°C / 150°C / 400°C |
| Max Pressure | 10 / 25 / 50 / 100 Bar |
Product Datasheet
Full technical specifications and the complete ordering / model-code guide for the LGF Flat Glass Level Gauge.
View Datasheet (PDF)Typical Applications & Connections
Where the LGF flat-glass gauge is applied — and how to choose reflex vs transparent glass for your service.
Boiler Drum Level
Flat-glass gauge rated for steam drums at high pressure and temperature, mounted across the drum connections.
High-Pressure Process Vessels
Robust flat-glass construction with cushioned gaskets for vessels up to 100 bar.
Clear vs Coloured Liquids
Reflex glass for clear, colourless liquids; transparent glass (with illuminator) for coloured, viscous or interface service.
Chemical & Petrochemical Reactors
Direct visual level for pressurised reactors, columns and separators.
Steam & Condensate Service
Mica/PTFE shields protect the glass in high-temperature steam duty.
Fertilizer & Power Plants
Heavy-duty visual indication for demanding process plants.
Choosing the right build: Pick reflex glass for clear liquids and transparent glass for coloured/viscous/interface media. Rated 10–100 bar and up to 400°C; centre-to-centre 300–4,000 mm; add isolation valves and frost/steam shields as required.