Full cycle of production

LIT lamp production is a vivid example of a science-intensive enterprise, where production line engineers work in close co-operation with developers of UV sources and equipment. All basic processes are automated and carried out on equipment specially manufactured for our company.

The company specialises in low pressure amalgam UV lamps. The product line includes a range of UV lamps for water, air and surface treatment plants as well as odour removal systems.

A multi-stage input, inter-operational and output inspection scheme is applied, which each UV lamp undergoes. And each lamp is marked with an individual number, which is applied by laser on quartz, and a special sticker on the lamp base. The quality of UV lamps is confirmed by tests and measurements in the laboratories of Philips Lighting (Netherlands/Belgium) and Lighttech/Lightsources (Hungary/USA) and 30 years of experience of reliable operation in 55 countries of the world.

The entire metalworking cycle, from cutting and bending to surface finishing, required for the manufacture of UV equipment, takes place in the assembly shop. Machines in our workshops allow us to manufacture installations up to 3 metres in diameter and up to 12 metres in length. The production park includes high-precision laser and waterjet cutting machines (Unimach and Flow), bending, rolling and turning and milling machines from well-known Russian and world manufacturers (StankoMashComplex, Mazak, ProTech).

Semi-automatic argon-arc welding makes simultaneously external and internal welding of seams of decontamination chambers. Each welding seam undergoes passivation, which increases the corrosion resistance of the metal. The quality of manufacturing of the mechanical components of the UV equipment is checked by internal inspection stages, e.g. the tightness of the welds is checked by pressure testing with a pressure 25% higher than the operating pressure of the plant.

All types of cabinets, consoles and control panels used in LIT equipment are manufactured in the electrical assembly shop. In addition, final assembly and complete testing of the products are performed here. The company uses element base only from reliable Russian and world manufacturers such as OVEN, Provento and others.

Input control

NPO ‘LIT’ has a strict list of materials and elements that are subject to input control. The inspection procedure itself is carried out in accordance with the regulations approved by the LIT quality service. The regulations and procedures are regularly improved and updated in accordance with the growing requirements of the market and individual customers to the quality of our products.

Intermediate inter-operational control

After each process step, control measurements are taken to ensure compliance with the design documentation. Pressure testing of the decontamination chambers that will be pressurised, as well as the electrical parameters of the UV lamps and the control cabinets of the UV equipment are checked.

Output control

NPO ‘LIT’ produces equipment that undergoes a total check on all permissible modes of operation, in conditions as close as possible to the operating conditions. For example, equipment designed for operation in pressure systems is tested on pressurised hydrostages. Installations are checked for electrical safety, tightness of connections, correct operation of control and monitoring systems. Output control procedures are carried out according to the protocols of LIT Quality Service.