Fan for rectangular ducts. Duct fans for rectangular air ducts. Advantages of rectangular duct fans

Duct fans for rectangular ducts

Rectangular
VKP 40-20 - VKP 100-50 / VKP-P 40-20 - VKP-P 80-50 220V / 380V. Forward curved blades

Duct fans for circular air ducts

Round
VKK 100-355 / VKK-P 100-315 / VKK 100M-315M / VKK-P 100M-315M. Galvanized or plastic body

Silent
TD-800/200, TD-1000/200, TD 1300/250, TD 2000/315 Silent. Compact dimensions and minimal noise level

Speed ​​controller
Smooth thyristor regulator for regulating the speed of rotation of electric motors of fans

Duct fans VKK available! In a warehouse in Moscow. Fast sending! The best prices.

Description Design Advantages of VKK and VKP Prices Application

Description and application of duct fans

Duct fans of round and rectangular cross-section are designed for operation as part of duct supply and exhaust ventilation systems. They can be installed both on supply air lines and on exhaust lines.

Via duct fans it is possible to organize a technically simple and relatively inexpensive system of high-quality air exchange in an office building, mini-hotel, residential building, production area small area and etc.

Duct fans have simple design, highly reliable in operation, with correct installation and compliance with operating conditions, they require a minimum of maintenance.

Our catalog contains

Round duct fans (sizes from 100 to 355mm):
• VKK (plastic case, standard version)
• VKK-P - silent (plastic case, premium version, motor-wheel is used German company Ebm-Papst)
• VKK-M (metal case, standard version)
• VKK-P-M - silent (metal case, premium version, motor-wheel of the German company Ebm-Papst is used)

Rectangular duct fans (VKP 40-20 - VKP 100-50):
• VKP (standard version)
• VKP-P - silent (premium version, the motor-wheel of the German company Ebm-Papst is used)

Speed ​​regulators:
• Triac speed controller CPM
• Transformer speed regulators - five-stage

Duct fans design

Duct fans have a compact design in the form of a monoblock and are completely ready for installation and commissioning.

Duct fans are built directly into the air duct break in the linear section of the ventilation line. To reduce the level of vibrations and noise from a working fan, it is recommended to install and mate with the duct flanges using flexible inserts of the appropriate section.

Inside the casing of the circular duct fan, there is an axial-type impeller. A centrifugal impeller is located inside the casing of a rectangular duct fan. The impeller sleeves are mounted directly on the rotors of the electric motors.

To protect the equipment from overheating, the design of duct heaters includes temperature sensors (for automatic shutdown of the drive).

The terminal box of the engine and the speed controller (if any) are placed on the outer part of the housing.

When installing duct fans into the air duct network, mechanical filters (in front of the fan) and sound attenuators (at the outlet of the air flow from the fan) are usually additionally installed.

Main advantages of duct type fans

• Long service life
• Compact design
• Mounting in any position
• Motor and impeller form a single unit
• The speed can be adjusted using transformer and electronic devices
• Low starting current

Round and rectangular duct fans

And duct fans are manufactured in standard sizes of a standard series (sizes are unified with standard sizes round and rectangular ducts, respectively).

Round duct fans VKK designed to work as part of channel systems ventilation with round air ducts and are used to generate supply or exhaust air flow along the air ducts.

Rectangular duct fans VKP are designed to work as part of ducted ventilation systems with rectangular air ducts and are used to generate supply or exhaust air flow along the air ducts.

Depending on the model of the duct fan, the drive can be powered to a 380V or 220V network.

When choosing a duct fan by rated power it must be chosen "with a margin" (over time, the aerodynamic resistance of the air ducts increases due to contamination of the inner walls).

Price list of round duct fans VKK

PRICE. VKK series STANDARD in a galvanized case (in rubles)

PRICE. VKK series PREMIUM in a galvanized case (in rubles)

PRICE. VKK series STANDARD in a plastic case (in rubles)

PRICE. VKK-P series PREMIUM in a plastic case (in rubles)

PRICE. Triac speed controller CPM

Price list Rectangular duct fans VKP

Prices (rub.) VKP fan of the STANDARD series. Expand the tab

Duct rectangular fans VKP STANDARD series
Fan brand	n. rpm	N, kW	Current, A	Q max, m3 / h	P max, Pa	Price
VKP 40-20-4E (220V)	1280	0,33	1,5	1200	250	9 008
VKP 40-20-4D (380V)	1270	0,33	0,6	1200	250	8 788
VKP 50-25-4E (220V)	1320	0,51	2,3	1600	300	12 063
VKP 50-25-4D (380V)	1300	0,49	0,8	1800	310	11 128
VKP 50-25-6D (380V)	930	0,30	0,8	1500	120	11 205
VKP 50-30-4E (220V)	1330	0,90	4,1	2500	390	13 308
VKP 50-30-4D (380V)	1400	0,87	1,8	2450	410	13 371
VKP 50-30-6D (380V)	910	0,32	0,8	1590	140	13 554
VKP 60-30-4E (220V)	1360	1,60	7,3	2700	420	20 059
VKP 60-30-4D (380V)	1360	1,70	3,2	3500	450	19 320
VKP 60-30-6D (380V)	900	0,45	0,9	2470	230	18 304
VKP 60-35-4D (380V)	1360	2,20	4,0	4200	620	22 377
VKP 60-35-6D (380V)	840	0,78	1,5	3500	250	22 287
VKP 70-40-4D (380V)	1340	3,50	5,9	5600	790	29 027
VKP 70-40-6D (380V)	810	1,15	2,3	4500	300	28 215
VKP 80-50-4D (380V)	1400	4,80	8,0	6500	1000	47 458
VKP 80-50-6D (380V)	870	2,80	4,9	6900	430	42 596
VKP 100-50-6D (380V)	900	3,50	6,1	8000	650	62 451

Prices (rub.) Fan VKP-P PREMIUM series. Expand the tab

Duct rectangular fans VKP-P PREMIUM series (motor-wheel ebm-papst)
Fan brand	n. rpm	N, kW	Current, A	Q max, m3 / h	P max, Pa	Price
VKP-P 40-20-4E (220V)	1300	0,28	1,3	1380	275	11 163
VKP-P 40-20-4D (380V)	1350	0,29	1,0	1450	280	9 889
VKP-P 50-25-4E (220V)	1330	0,40	2,0	1600	300	13 272
VKP-P 50-25-4D (380V)	1350	0,60	1,2	1800	310	12 383
VKP-P 50-30-4E (220V)	1270	0,64	2,8	2500	390	14 929
VKP-P 50-30-4D (380V)	1400	0,70	1,6	2450	410	16 191
VKP-P 60-30-4E (220V)	1230	1,05	4,8	2800	630	22 247
VKP-P 60-30-4D (380V)	1330	1,32	2,8	3500	650	21 705
VKP-P 60-35-4D (380V)	1310	2,18	3,9	4600	580	25 516
VKP-P 70-40-4D (380V)	1300	4,37	7,9	7050	830	34 445
VKP-P 80-50-4D (380V)	1210	4,92	8,5	7500	1150	52 777

Prices (rub.) Transformer speed controllers. Expand the tab

Transformer speed regulators - five-stage
Name	Number of phases	Voltage	Current, A	Usage	Price with VAT)
IT.D01	3	400V	1	For fans with three-phase motor(marking 4D, 6D), operating at a voltage of 380V. The selection of the regulator is carried out according to the value of the consumed current (Current, A)	27 287
IT.D02	3	400V	2		29 898
IT.D04	3	400V	4		33 358
IT.D05	3	400V	5		37 993
IT.D07	3	400V	7		40 931
IT.D10	3	400V	10		63 583
IT.E02	1	230V	2	For fans with a single-phase motor (marking 4E) operating at 220V. The selection of the regulator is carried out according to the value of the consumed current (Current, A)	9 270
IT.E03	1	230V	3		13 317
IT.E05	1	230V	5		16 059
IT.E10	1	230V	10		24 806

Duct fans, regardless of size, shape and design features are used in ventilation systems any purpose (supply, exhaust, supply and exhaust). They can be built into both the supply circuit and the exhaust hood.

This equipment is designed for the device not too complex schemes air exchange, such as ventilation of offices, small hotels, residential buildings, small industrial buildings etc. At the same time, the cost of such an installation is very moderate.

The device has a simple design, which significantly increases its durability and reliability during operation. With proper installation and full implementation of the manufacturer's recommendations, maintenance during operation is minimized.

Design and principle of operation
Industrial fans channel type consist of a single unit, designed as compactly as possible. The units are produced in a completely ready-to-install and operate form. No need preliminary preparation and adjustments.

Installation is carried out by embedding the device directly into the air duct ventilation system... To reduce the noise and vibration effects generated by the engine, it is recommended to use flexible inserts of the required standard size for connecting the fan with parts of the air duct.

The design feature of the fan round section is an axial-type impeller located directly inside the housing. For rectangular units, a centrifugal impeller is characteristic, also located in the housing. The impellers are connected to the rotors of the electric motors by means of bushings.

Duct heaters equipped with temperature sensors are used to heat the air in the air ducts and control its temperature. There is an automatic stopping of heating when the air reaches the selected temperature.

If the design provides a speed regulator, it is installed on the outside of the housing. The terminal box is also located there.

Most often, the project provides for additional filtering devices mounted in the ventilation system up to the fan, and silencers built at the outlet of the air flow from the fan.

Execution options
Fans, regardless of their shape, are manufactured in any traditional standard sizes used in accordance with standardization standards for rectangular and circular air ducts.

Power is supplied from a 220 or 380V network, depending on the device model.

Buy fan channel type for round and rectangular ducts you can right now by calling us at 495-380-06-76 or by placing an order directly on the website. When choosing the model you need, it is recommended to make some margin in comparison with the required power, because over time, air lines naturally become dirty, which leads to an increase in aerodynamic drag in the system.

Fans for rectangular ducts used in ventilation of industrial and public buildings, They are installed in places where space for ventilation installation is limited, but at the same time, frequent cleaning of the impeller is necessary. Apply rectangular duct fans for exhaust, supply ventilation systems with rectangular air ducts. The galvanized body and hinged cover of the device are convenient to use. The fan blades can be bent forward or backward (depending on the manufacturer and the required functions), they provide good cleaning air., You can install the fan in any position.

It is recommended to install the blades with forward curved blades in systems with long duct lengths and increased aerodynamic resistance of the network. The devices themselves are reliable, perform well, work for a long time, without much maintenance or intervention.

Devices with backward-curved blades consume two to three times less electricity than the previous type of devices. They have a higher efficiency at low rpm, higher static pressure and a low noise level during operation. Their service life is further increased by the air flow of the impeller and the electric motor.

Advantages of rectangular duct fans:

Small-sized design
- Built-in thermal protection provided
- Installation in any position
- Performance adjustment
- Long non-operational service life in different conditions work.

Rectangular duct fans, as the name implies, they are used in systems with rectangular ventilation ducts, given view ducts are widely distributed both in supply and exhaust ventilation systems of various complexes and objects for various purposes. Compact dimensions allow easy installation and commissioning. The connection to the duct system is carried out using flanges.

Working wheel installed inside a rectangular metal body, the RK has forward curved blades. The motors are used asynchronous three-phase with an external rotor of 380 volts. Body material, galvanized steel, reliably protected from external corrosion. Built-in thermal contacts are an integral part of modern motors used in fans, they provide adequate protection against overheating.

Symbols duct fans

Brand, model, typical channel size
Example: " Ostberg RKB 1000x500 L3 "

Rectangular duct fan is designed to organize supply or exhaust ventilation, which are mounted directly into a rectangular duct.

Rectangular duct fans, as a rule, provide significantly more consumption air than fans for round ducts.

Installation

Rectangular duct fans are installed with a view to service maintenance... Ensure free access to the wheel motor and the terminal box. Installation of rectangular duct fans can be carried out in any position: vertical or horizontal. Rectangular duct fans on both sides have flange connections , which makes it easier to connect them to the duct. For a hermetic connection of the fan to the air duct, it is necessary to use a flange sealing tape with a thickness of at least 5 mm.

The rectangular duct fan is produced with both forward curved and backward curved impeller blades.

Designations

Rectangular duct fan type	Channel section, mm	Voltage, V	engine's type	Thermal contacts	shoulder blades	Number of motor poles
Shuft RFE-B 300x150-2 VIM	300 x 150	220	Asynchronous	Built in	Back curved	2
Ruck KVR 7040 D4 30	700 x 400	380	Asynchronous	Built in	Back curved	4

Role in the ventilation system

If it comes about the organization supply ventilation using a rectangular duct fan, it is recommended to install in front of it: a valve and a drive for ventilation (closing the valve when the unit is turned off), a pocket or cassette filter, an electric heater / or water heater for rectangular ducts and a set of automation. If installed in a ventilation system, then for control it is necessary to purchase: a sensor differential pressure to determine the pressure on the fan, when the filter is dirty, Pulser temperature controller (setting the required temperature), temperature sensor. Rotational speed control in rectangular duct fans implements a rotational speed regulator or economical
frequency converter... It is recommended to use a quality and inexpensive Danfoss frequency converter. To reduce the level of internal noise in the duct, after the rectangular duct fan, it is necessary to install a rectangular muffler.

Soundproof fan

To reduce the external noise level coming from a rectangular duct fan, additional sound insulation of the fan itself from mineral wool or install more expensive sound-insulated rectangular duct fans.

Using a rectangular duct fan for the organization of exhaust ventilation, it is necessary to install: a valve with a drive, a silencer, a transformer or frequency converter. To synchronize the operation of an exhaust rectangular duct fan and a supply fan, it is possible to use one fan speed controller with a current index more amount fan currents.

Price and differences

The price for rectangular duct fans starts from 9,000 rubles and depends on many factors:

1. According to the connected voltage - 220 V or 380 V;
2. Over the section of a rectangular duct - from 400 x 200 to 1000 x 500 mm;
3. By the flow rate of transported air - from 350 to 18,000 m 3 / hour;
4. Energy saving - traditional motors (asynchronous) or EC-motors (synchronous) collectorless;
5. By the number of motor poles;
6. By design - with a removable motor-wheel, in a sound-insulated casing;
7. By the type of fan blades - forward curved, such fans have more compact dimensions or backward curved blades, provide greater efficiency and less noise;
8. By the presence of thermal protection in case of motor overheating;
9. Soundproofing - in a soundproofed (soundproofed) case or without.

How to buy

Want to buy rectangular duct fan? Use the convenient filter for the selection of equipment on the left side of the page.

For correct selection rectangular duct fan must be specified:

• Connected duct size - width and height in mm;
• The number of fan phases - 1 or 3 phases;
• Required air consumption, m 3 / hour.

Doubt about your choice? We will be happy to advise you, select the required model of a rectangular duct fan, if necessary, make a ventilation project and, of course, produce quality installation fan in Moscow just in time!

Rectangular duct fans our online store sells not only in Moscow and Moscow region but throughout Of Russia.