Quality and environmental management Vent System Project OÜ follows the principles of the ISO 9001 certificate.
Rectangular ducting VSP is a system of galvanised steel ventilation ducts and fittings with rectangular cross-sections, designed for supply, extract and general ventilation in buildings. It is used in warehouses, logistics centres, office buildings, shopping centres and industrial facilities.
Circular or spiral ducts usually offer slightly better aerodynamic performance and are easy to suspend. Rectangular ducting, on the other hand, is often the better choice where space is limited: above suspended ceilings, in shafts and tight technical corridors. It allows the designer to fit the required duct area into restricted width or height.
VSP rectangular ducts are typically made from galvanised steel with a sheet thickness selected according to duct size and system pressure. Galvanising protects against corrosion and, together with proper jointing, ensures mechanical strength and tightness for long-term operation in commercial and industrial buildings.
Rectangular ducting systems are based on standard width and height increments, which simplifies design and the use of standard fittings. However, custom sizes can be manufactured for specific projects as long as they comply with production capabilities and the required strength and leakage classes.
Pressure loss and noise are mainly influenced by air velocity, duct length, number of fittings and surface quality rather than shape alone. If air velocities and duct sizes are selected correctly, VSP rectangular ducting provides acceptable pressure losses and sound levels that match the ventilation design.
Where rectangular ducting passes through unheated spaces, carries chilled air or is connected to noisy equipment, thermal and/or acoustic insulation is recommended. Thermal insulation reduces energy losses and prevents condensation, while acoustic insulation limits noise transmission from fans and airflows into occupied spaces.
Airtightness depends on the quality of flanges, gaskets and fixings used at duct joints. The VSP system is designed with compatible connection components that make it possible to achieve defined leakage classes. Correct installation and tightening of all joints are essential for energy-efficient ventilation systems.
Ductwork is suspended from the building structure using hangers, threaded rods, channels and brackets sized for the weight of the duct and insulation. During design, access to inspection openings, dampers and equipment is planned in advance to make commissioning and maintenance possible throughout the system’s life.
Cleaning and maintenance are carried out via access doors and inspection openings installed at strategic points in the duct system. The required frequency depends on the building use, filtration level and hygiene requirements, but larger systems usually follow a planned maintenance schedule and relevant standards.
VSP rectangular ducting is supplied primarily to projects in Estonia and, where required, also to Latvia and Lithuania. Pricing depends on duct dimensions, sheet thickness, volume of the order, any insulation or special components and transport to the site. Project quotations are prepared based on detailed specifications and delivery schedules.
VENT SYSTEM PROJECT OÜ (11720522), Ida-Viru County, Narva City, Narva, Oru tn 4, 20203
VENT SYSTEM PROJECT OÜ (11720522), Ida-Viru County, Narva City, Narva, Oru tn 4, 20203
