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. Sight glasses can be installed by welding, bolting or clamping into your equipment. Sight glasses are assembled to suit the needs of your specific plant and vary in pressure from high vacuum through atmospheric to high pressures up to 250 bar. There is a very wide range of applications so there are sight glasses suitable for each application from cryogenic through to furnaces.

Sight glasses can be as small as 6mm and as large as 600mm. Sight glass surrounds are made of diverse materials to suit your process, these include aluminum, carbon steels, stainless steels, duplex stainless steels and hastelloy.

We have a wide range of sight glasses to suit different processes and environments:

Visilume Limited is a 100% employee owned company.

Having remained an independent company since it was founded in 1984; Visilume has built up a strong UK and International customer base by prioritising customer service and providing easy access to technical expertise.

In 2014, we transferred a controlling stake of the company to employees, and in 2021 we became fully employee-owned. We have now created a structure that will secure the long-term future of the company, and the core objectives of continued independence and providing excellent customer service.