Concentrators - Import export

Knight Optical can offer you Stock and Custom Fresnel Lenses, for concentrated photovoltaic applications in a range of materials such as PMMA Acrylic and Borosilicate. CPV is an application which generates electricity from sunlight. The key difference between this technology and conventional photovoltaics (solar panels) is the inclusion of optical components. Utilising optical components which focuses the sunlight onto solar cells increases the efficiency of the electricity generation. Knight Optical provides fresnel lenses which consist of a flat surface with interspace concentric steps whereby each step corresponds to the surface of a conventional lenses. PMMA Acrylic is a preferred material for CPV systems as it is very lightweight when used in a large size. Specialist grades of PMMA are also utilised which absorb the UV light and thus reduces the effects of solarisation i.e. the yellowing of the optical material due to exposure to UV. Read PDF for full information

Cortec VpCI® 322 is a concentrated, solvent-based oil safeguarding ferrous and non-ferrous metals from corrosion. Leveraging advanced VpCI® technology, it forms a thin, transparent film that protects against rust, even in hard-to-reach areas.This oil not only inhibits corrosion but also lubricates moving parts due to added anti-wear agents.Its low viscosity ensures easy application and penetration.Ideal for equipment, parts, and components during shipping, storage, or lay-up, VpCI® 322 safeguards a wide range of metals, including carbon steel, stainless steel, copper, brass, aluminium, and galvanised steel.

A dark red coloured clear viscous liquid with an aroma characteristic of black cherry.

A dark brown coloured turbid viscous liquid with a flavour and aroma characteristic of fig.

A red coloured clear viscous liquid with a flavour and aroma characteristic of elderberry.

A purple coloured clear viscous liquid with an aroma characteristic of carrot.

A deep redpurple coloured clear viscous liquid with a flavour and aroma characteristic of blackcurrant.

A red coloured clear viscous liquid with an aroma characteristic of blackcurrant.

A redpurple to dark purple coloured turbid pulpy viscous liquid with a flavour and aroma characteristic of blackberry.

A dark red to purplered coloured clear viscous liquid with a flavour and aroma characteristic of aronia.

This is the standard Apple Concentrate Clarified 70 Brix medium acid (malic acid 1.8 3.6 %w/w) product used in a wide variety of juice products. Available in 25kg aseptic bagsinboxes and 270kg aseptic drums. This is a standard stock item held at our onsite UK warehouse. Countries of origin for the fruit are Poland, Spain and France. Technical spec product description A pale yellowbrown coloured clear viscous liquid with a flavour and aroma characteristic of apple. What is apple concentrate? Apple concentrate is produced by removing water from freshly pressed apple juice. This achieved by evaporation under vacuum, which concentrates the natural sugars in the juice and makes it easier to store and transport. How can this apple concentrate be used? We suggest using 6 parts water to 1 part concentrate to return this to the original apple juice. It is an ideal ingredient for juice, cider or drink makers, and retains much of the original nutritional values of the apples.

A yellowbrown coloured clear viscous liquid with a faint aroma characteristic of apple.

Highly concentrated, easily biodegradable cleaning and degreasing agent for various applications in industry, construction, workshops and around the home. It is water-miscible, has a very good cleaning effect and prevents growth of bacteria.