Visilume Ltd

Visilume supplies a wide range of sight glasses for viewing the contents and also the level of tanks, vessels or pipelines. Sight glasses allow you to monitor liquid flow either manually or at a distance.

-Circular sight glasses for viewing the contents of a tank or pressure vessel.
-Metaglas sight windows which have unmatched strength and offer the ultimate solution for operator and process safety.
-Glass tube liquid level gauges to view the contents of a tank or pressure vessel.
-Rectangular site glass fittings to view the level and contents of a tank or pressure vessel.
-Transparent level gauges to view the contents of a pressure vessel.
-Sanitary and hygienic equipment.
-Water treatment sight window fittings
These are now described in more detail
Circular Sight Glass Fittings to DIN 28120
These are weld-on site glass fittings for the observation of the internals of pressure vessels, silos, gear trains, separators, pipelines etc. These fittings are circular flanged sets suitable for welding into or onto vessel walls, complete with seals and site glass disc set between the flange rings. They can be combined with Lumiglas light fittings for use in explosion hazardous areas and safe areas.
Sight Flow Indicators
These are used to check for presence of a fluid. They can be used in vertical or horizontal lines. The integral drip lip makes them ideal for leak detection. They have a high quality robust design, are CE marked and fully compliant with the pressure equipment directive. Connections can be flanged or threaded. They cover pressures up to 100 bar and temperatures up to 250°C.
Metaglas Sight Glasses
Metaglas sight glasses are the strongest and most secure glass for sight window applications. The mechanically pre-stressed glass fused to metal construction provides levels of safety and length of service far beyond that offered by any conventional sight glasses.
Glass Tube Liquid Level Gauge
The glass tube indicator is for installation in condensation tanks, reservoirs, fire sprinkler tanks, water supply tanks. The level guage may be equipped with automatic closing ball, which closes in the case of glass breakage.
Rectangular Sight Glass Fittings
These site glass fittings are mainly used as fluid level indicators for vessels, silos, and reactors.
Transparent Level Gauge
These sight glasses are ideal for steam boiler applications. They can operate in pressures up to 250 bar and 450°C. They are designed for either direct viewing or CCTV transmission to a central room.
Reflection Level Gauge
The reflection level gauge is ideal for steam boiler applications up to 35 bar and 243°C. They can also be used in refrigeration plants, chemical storage vessels, condensate tanks and reservoirs for mineral and vegetable oils. They provide a direct indication of water level using distinctive dark and light areas.
Sanitary and Hygienic Equipment
The Metaglas sanitary Metaclamp is of extremely robust construction. It is suitable for food processing and pharmaceutical applications. It has extreme resistance to impact and safeguards against total failure of the process. It is widely accepted in the European and American food, beverage, pharmaceutical and chemical industries.
Water treatment
Sight ports are custom built for process observation in the water treatment and allied industries. There is a range of standard or special sight ports with viewing diameters from 100 mm to 600 mm. They are suitable for setting into concrete, bolting onto a base flange or welding into steel vessels and tanks.
We have sight glasses for every process carefully matched to the specifics of your process by our technical experts.
Sight glass assemblies, flanged, metal
Safety discs and bursting discs, metal
Electric lighting equipment, explosion proof
Flow indicators
Liquid level indicators, magnetic
Gauges, liquid level
Cameras, explosion proof