NAŠE VÝROBKY

ROOF FANS

WDS EC

compact, horizontal exhaust

WOD

axial, horizontal exhaust

WPD

centrifugal, for local extractions

WZD

centrifugal, hybrid fan

RUFINO SP

heavy duty, horizontal exchaust

DWR

axial, hybrid fan
WALL FANS

FARM

heavy duty

RUDI S

compact
DUCT FANS

WOCH

for refrigeration

PFK

centrifugal, heavy duty

WOO

high flow, increased pressure

MACH

high flow

OFK

medium flow, increased pressure

WKBO EC

small compact EC moto
CENTRIFUGAL FANS

WPSW

high pressure

WPR

blowing

PFPK

exhaust, heavy duty

WB

compact, forward blades
CHEMICAL RESISTANT FANS

PFPK OH

side channel

PFD OH

roof
EXPLOSION-PROOF FANS

WDBE 3G/3D

explosion-proof roof fan

WODE

axial roof, horizontal exhaust

WOKE

channel

DWR EX

axial roof, horizontal exhaust

OFK EX 3G/3D

channel, increased pressure

WOSE

wall
SPECIAL EXTRACTORS

WOJM

axial fan, for destrification

ZOP

for dust

ZOD

for welding

ZOT

for wood

ZOS

for automotive

WTK

for dust transport
VENTILATION UNITS

CNG

channel, with electric heater

ZWC EC

standing, with heat exchanger

B3B

suspended, with heat exchanger

OFK EX 3G/3D

channel, increased pressure
OFK EX are explosion-proof duct fans

OFK EX series fans meet the requirements of the EU ATEX Directive 2014/34/EU on devices intended for use in potentially explosive atmospheres

Fans adapted to work in explosion hazard zones 2 and 22.

Zone designation:
Z1 – zone in which a mixture of gases, vapors or mists may occur under normal operating conditions.
Z2 – zone where there is a low probability of an explosive mixture of gases, vapors or mists, where the explosive mixture may occur only for a short time.
Z22 – a zone where there is a low probability of an explosive dust mixture and there is a short time, e.g. during a breakdown.

FAN MARKING acc. to ATEX:


Temperature class for gases: from T1 to T3
Maximum surface temperature for dust up to 120°C
Ambient temperature: up to +40°C
Explosion group for gases: IIA and IIB
Explosion group for dusts: IIIB

The OFK EX fan.

The OFK EX fan, thanks to its compact housing, is used in many technological installations of the chemical industry where there is a risk of gas or dust explosion. They are used, among others, in battery rooms, laboratories, paint shops, gas stations, refineries and sewage treatment plants.

The fans are intended for installation on round duct systems. The fan is mounted using mounting flanges for flange-connected ducts or for spiro ducts with nipple connections (additional counter-flanges must be used). Motors adapted to speed regulation (dedicated inverter offered by TYWENT and EX relay required). The fan housing is made of steel sheet covered with a special anti-electrostatic coating. At the customer’s special request, it is also possible to make it of acid-resistant steel.