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16.11.2017

Autumn upgrades for VENTS factory equipment

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Centrifugal roof fan VENTS VKH series

Compare series

Centrifugal roof fans with horizontal air exhaust and with maximum air capacity of up to 4700 m³/h at 50 Hz and 5130 m³/h at 60 Hz.

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Products in this series (21)

Series and modification		Casing material		Number of poles		Phase		Turbine standard size
VENTS VKH – horizontal air exhaust		_ steel with polymeric coating A – aluminum z – galvanized steel		2, 4, 6		E- single phase; D - three phases		220; 225; 250; 280; 310; 355; 400; 450; 500

Applications

Exhaust ventilation system for various premises suitable for roof mounting. Compatible with Ø 200 to 500 mm air ducts. Suitable for any roof types as well as vertical ventilation shafts.

Design

The fan casing is made of steel with polymeric coating (VENTS VKH model), aluminum (VENTS VKHA), galvanized steel (VENTS VKHz).

Motor

2-, 4- or 6-pole single or three phase asynchronous external rotor motor and impeller with backward curved blades installed on the motor shaft. The motor is equipped with thermal overheating protection with automatic restart as well as ball bearings for long service life. For precise features, safe operation and low noise, each turbine is dynamically balanced while assembly. Motor protection rating IP 44.

Speed control

Both smooth or step speed control is performed by means of the thyristor or autotransformer controller. Several fans can be connected to one controller in case the total power and operating current do not exceed the rated controller values.

Mounting

The fan is mounted on the roof directly above the ventilating duct or shaft and is firmly fixed to the flat surface by means of a connecting plate. While mounting VKH fans directly onto the flat roof a supporting block shall be provided to prevent water and snow drops into the vent of the ventilation shaft.

Electrical connection and installation shall beperformed in compliance with the manual and circuit diagram on the terminal box.

For connection of the fans to round air ducts use the following accessories: KKV damper, GVK flexible connector, FKV counter flange. For mounting of the fans to flat surface use the mounting frame RKV.

Mounting example

VENTS VKH fan store roof ventilation example

E-mail

Please, feel free to contact us.

support@vents.ua

Phohe

Customer service.

+380 44 406 36 25

Online form

Send a message center customer support.

SR series (round)
KOM series
Speed controller RS-1-300
Single phase speed controller RSA5E-2-P
SRF series
Speed controller RS-1-400
Single phase speed controller RSA5E-…M
Speed controller RS-…N (V)
GKV series
Mating flange FKV
Mounting frame RKV
Mounting frame RKVI (insulated)

Selection method:
Performance:
Pressure:

VKH 2E 220

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VKH 2E 225

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VKH 2E 250

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VKH 2E 280

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VKH 4E 310

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VKH 4D 310

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VKH 4E 355

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VKH 4D 355

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VKH 4E 400

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VKH 4D 400 (Δ)

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VKH 4D 400 (Υ)

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VKH 4E 450

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VKH 4D 450

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VKH 6E 500

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	Yes
	Sometimes slow
	No

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