The fans are certified and have permission for use in explosive and chemically hazardous industries and facilities.
Veza VRAN6-071-DU fans have a left- or right-hand rotation impeller with backward-curved blades special form, providing high efficiency and low noise.
The spiral housing is rotary. It is possible to operate the fans in the smoke removal mode (SD) and in the combined smoke removal and ventilation mode (SUV). In the latter case, the fans are equipped with motors for long-term permanent job.
The fans are equipped with standard 3-phase asynchronous single-speed motors. For VRAN9 fans according to the 1st design scheme, it is possible to equip them with motors that allow frequency regulation rotation speed.
For housing position P0 and LO for the 1st category of placement (outdoor), protection from atmospheric precipitation ZONT-VRAN is provided (ordered separately as an option).
Veza VRAN6-071-DU fans must be installed outside the serviced premises and outside the area of permanent residence of people.
Fans can be operated in moderate conditions (U); temperate and cold (UHL) and tropical (T) climates of the 1st and 2nd categories of placement according to GOST 15150.
Please note that this offer is not public offer. You can find out more on the page
Medium-pressure radial industrial fans VRAN are presented in two modifications of impellers and with a wide standard range of R20 wheel diameters. This allows you to select optimal model for any operating mode. Fan capacity is from 300 to 150,000 m³/h, maximum pressure 2600 Pa. Units of this type are used in injection systems and installations where there are size restrictions. Specifications VRAN fans are not inferior to the performance of imported analogues. Strength indicators are confirmed by relevant tests.
VRAN fans are installed in standard ventilation, air conditioning and air heating, the units are suitable for industrial or residential premises. Particularly effective in installations where there are strict restrictions on the overall dimensions of the fan. Suitable for smoke ventilation.
The following versions of this model are presented:
The main element of the fan design is an impeller with backward-curved blades. The wheel is placed in a rotating spiral housing. The inlet pipe of a special cylindrical shape is located outside the wheel, which ensures long service life. There is also no inlet flange, which makes the air inlet on the suction side more favorable. There is a separate mechanism to protect the engine from precipitation. The motor is three-phase asynchronous single-speed. VRAN9 models according to the 1st scheme can be equipped with a drive with frequency regulation of the rotation speed. The fans are capable of operating in smoke removal mode or in a combined smoke removal and ventilation mode - such models have motors installed for long continuous operation.
VRAN industrial fans are installed outside premises at a distance from places where people are constantly staying. Operation is permitted in temperate, moderately cold and tropical climates when placed in categories 1 and 2. Permissible air temperature is from -45 to +50ºС. If there is a source of vibration nearby, the vibration velocity should not exceed 2 mm/s. To reduce noise levels, a noise-insulating casing can be used.
The manufacturer offers the following versions of VRAN fans:
VentInform company provides supplies ventilation equipment to all regions of Russia. We offer VRAN6 and VRAN9 fans in the following standard sizes:
VentInform’s partners include leading domestic and foreign manufacturers ventilation equipment, which guarantees high quality products. We offer our clients best prices and the most convenient conditions for purchase.
The VEZA plant is the largest manufacturer of ventilation equipment in Russia, including such products as centrifugal fan general industrial purposes. Centrifugal fan series VR-80-75 or VRAN - this is the original name VEZA, VTs-14-46 or VRAV - is used in ventilation, air conditioning and air heating systems for various purposes.
Radial fans VRAN-DU and VRAV-DU are installed in special exhaust ventilation systems to remove gases arising from a fire and simultaneously remove heat outside the room. At the same time, localization of the fire zone is ensured and the possibility of carrying out work to fight the fire and rescue people and equipment is created. Installations can be moved gas-air mixtures with temperatures of 400°C and 600°C for at least 120 minutes.
Centrifugal fan VR-80-75 - replacement with a VRAN fan at the request of the Buyer.
VRAN fans low pressure are manufactured in general industrial, heat-resistant, corrosion-resistant, northern and explosion-proof versions. The impellers of such a fan contain 9 or 6 backward-curved blades. Thanks to a wide range of standard sizes and two types of impellers, the centrifugal fan very tightly covers the operating points for the main ventilation tasks.
The centrifugal fan VRAN is manufactured according to the 1st (with direct connection to the engine) and 5th (with a belt drive) design design schemes. Capacity from 1000 m³/h to 100,000 m³/h, total pressure from 100 Pa to 1800 Pa.
The VRAN centrifugal fan is used in systems that require high efficiency, low noise levels and in systems with parallel operation of several fans.
Low-pressure fans VRAN6 and VRAN9 are used to move gas and steam-air mixtures, which can also include explosive ones. The units are used in stationary ventilation and air conditioning systems, as well as in air heating systems for public, industrial and residential buildings, as well as for industrial and sanitary purposes.
the installed power of the motors per fan has been reduced;
Dimensions and weight are reduced;
used new technology manufacturing the body from galvanized steel;
proposed additional options on the use of flexible rates and vibration isolators;
a new, denser standard size series R20, accepted in the world, was introduced;
the outlet opening has been enlarged in accordance with European Standards.
Fan VRAN-DU has a left- or right-hand rotation impeller with specially shaped backward-curved blades, ensuring high efficiency and low noise. The spiral housing is rotary. All standard sizes of fans are manufactured according to design scheme 1 (with direct connection to the motor). Fans No. 4 are manufactured according to design scheme 5 (with belt drive); 5; 6.3; 8; 10 and 12.5.
The fan impellers are made of St3 steel (for temperatures up to 400°C) and 12Х18Н10Т steel (for temperatures up to 600°C) with a heat-resistant paint and varnish coating. Thermal protection of bearing units ensures reliable operation of the fan when moving hot gases.
VRAN-DU fans for supply smoke ventilation systems are installed in special supply systems smoke removal to create overpressure(support) in staircases, airlock vestibules and elevator shafts of buildings to prevent smoke from penetrating into these rooms and to create the possibility of carrying out firefighting work and rescuing people and equipment.
The fans are certified and have permission for use in explosive and chemically hazardous industries and facilities.
Veza VRAN6-071-DU fans have a left- or right-hand rotation impeller with specially shaped backward-curved blades that provide high efficiency and low noise.
The spiral housing is rotary. It is possible to operate the fans in the smoke removal mode (SD) and in the combined smoke removal and ventilation mode (SUV). In the latter case, the fans are equipped with motors for long-term continuous operation.
The fans are equipped with standard 3-phase asynchronous single-speed motors. For VRAN9 fans according to the 1st design scheme, it is possible to equip them with motors that allow frequency control of the rotation speed.
For housing position P0 and LO for the 1st category of placement (outdoor), protection from atmospheric precipitation ZONT-VRAN is provided (ordered separately as an option).
Veza VRAN6-071-DU fans must be installed outside the serviced premises and outside the area of permanent residence of people.
Fans can be operated in moderate conditions (U); temperate and cold (UHL) and tropical (T) climates of the 1st and 2nd categories of placement according to GOST 15150.
VRAN-DU 6.3 fans are installed in special exhaust systems to remove gases arising from a fire and at the same time remove heat outside the room, they can move gas-air mixtures with temperatures up to 400°C and up to 600°C for at least 120 minutes. At the same time, localization of the fire zone is ensured and the possibility of carrying out fire fighting and rescuing people and equipment is created.
According to the 1st design scheme, fans are manufactured in the following standard sizes: 5; 6.3; 8.
According to the 5th design scheme, fans are manufactured in the following sizes: 6.3; 8; 10; 12.5.
general industrial (N)
corrosion resistant (K1)
explosion-proof (B) - only according to the 1st design scheme
explosion-proof, corrosion-resistant (VK1) - only according to the 1st design scheme
VRAN-DU 6.3 fans have a drum-type impeller of left or right rotation with 32 forward-curved blades. The spiral housing is rotary. The inlet pipe has a cylindrical shape and does not fit into the impeller, which ensures reliable operation of the fan when high temperature moving environment.
The VRAN-DU 6.3 version of fans in a noise-insulating casing (manufactured for general industrial design and casing positions of 0 and 90 degrees) allows you to reduce the total level of sound power emitted by the fan by up to 12 dB due to the noise-absorbing and noise-insulating properties of the casing. Total level sound pressure decreases by 25...30dB at a distance of 5m.
Offered additional equipment vibration isolators and flexible inserts, which reduces dynamic loads, as well as return flanges and an automation cabinet.
Fans must be installed outside the serviced premises and outside the area of permanent residence of people.
Fans can be operated in moderate conditions (U); temperate and cold (UHL) and tropical (T) climates of the 1st and 2nd categories of placement according to GOST 15150.
ambient temperature
from minus 45 to +40°С for temperate climates,
from minus 60 to +40°С for moderate and cold climates,
from minus 10 to +50°С for tropical climates;
the average vibration velocity of external vibration sources at the fan installation sites is no more than 2 mm/s;
