Silencers are used to reduce the noise in ducts.
The crosstalk silencer is designed to reduce noise in the air conditioning and ventilation circular ducts.
Flexible silencers are designed to reduce noise in the air conditioning and ventilation circular ducts.
Circular silencers with circular core
Circular silencers with a circular core are designed to reduce noise in the circular air conditioning and ventilation ducts.
Cellular silencer is designed to dampen the noise propagating through the ventilation ducts or to construct damping walls
Inserts for silencers
Silencer inserts are a basic part of the silencer wall designed for installation in air conditioning systems.
Cassette silencers are designed to dampen the noise propagating through the ventilation ducts from fans and other vane machines. They can be assembled into air ducts or as modular damping walls (into masonry ducts, tunnels, etc.).
Group I square steel pipes (hereinafter referred to as ducts) are air-conditioning ducts, used mainly for air conditioning and ventilation. The pipes are manufactured in parts made of double-sided galvanized sheet metal with a galvanizing layer of 275 g/m2. Requirements for different material quality are solved within an atypical design. The duct consists of pipes, fittings and accessories.
Fittings are typically arcs, knees, bounces, transitions, junctions, shaped and trouser pieces.
Round duct is an air duct used mainly for air conditioning and ventilation. Basic ducts are manufactured in parts made of double-sided galvanized sheet metal with a galvanizing layer of 275 g/m2, which can be proofed by the certificate and certificate of the manufacturer. It consists of round pipes, fittings, accessories and pressed fittings.
Shaped parts are typically arcs, transitions, rebounds, branches, branches, extensions, flaps and seat pieces.
We are able to produce round ducts the following versions:
- Round duct with stainless steel
- Round duct made of aluminum
- Round duct with flat flanges
- Round duct made of perforated galvanized sheet metal
Heat and smoke removal ducts
Heat and smoke removal ducts are defined as an element of the system for directing the movement of smoke with regard to the characteristics of fire resistance properties specified in ČSN EN 13501-4 Article 5. Its function, together with other elements of the system, is to control and / or limit movement of smoke and heat.
The pipes are manufactured in parts made of galvanized sheet metal on both sides. It consists of individual pipes, shaped parts and accessories.
The basic accessories from the ZVVZ production program include heads, roofs, flaps, slides, damping inserts, flange rails and corner pieces, suspension rails, hinges, sleeves, grilles and acoustic covers.
Exhaust heads are used for ventilation, exhaust, air conditioning and dedusting equipment, where it is required that the air is blown as far as possible into the open space. They also prevent rain and snow from entering the pipes.
Square roofs are used for air intake from free space or for exhausts without harmful additives.
Round roofs are mainly used for air extraction from the room, but they can also be used for air supply. They are suitable for outdoor installation.
The roofs can be fitted with mesh, which prevents foreign objects from entering the circuit.
The dampers are used to regulate the required amount of air.
Shut-off valves are suitable for closing the exhaust air ducts.
Circular valves are used in connection with the ducts of group I as a separate assembly part for the distribution system of ventilation and air conditioning equipment.
The damping inserts serve to prevent the transmission of vibrations from the fans to the connected pipes.
The flange rail meets high requirements for tightness and rigidity. It is attached to the pipe by means of indentations or scoring.
Suspension rails are especially suitable as supporting elements of the fastening system of air-conditioning pipelines, air conditioning, heating, gas, water, etc. In other offered fastening elements it is possible to combine a variable method of assembly of pipelines. The blades are especially in these cases where it is not appropriate to drill into the walls of the pipe (when fixing other types of hinges). They are also very convenient for hanging larger pipes.
The sleeves are intended for hanging group I pipes, SPIRA pipes and FLEXO hoses in a horizontal position.
The grilles are suitable for terminating at the end of the exhaust or intake part of the piping systems of the sk.I piping against the ingress of unwanted solid particles into the air-conditioning piping.
Acoustic covers are designed for noise reduction of machinery (eg fans, compressors).