The UPECM FLEXIBLE series of acoustic
centrifugal cabinet fans offer an ideal
and cost effective ventilation solution for
the extract or supply of non-hazardous
The range consists of 7
nominal model sizes all of which include
direct-drive, low pressure double inlet
forward curved centrifugal fans.
the flexible, nature of the design and
construction; the UPECM FLEXIBLE
series can be supplied to accomodate
specific customer or installation
requirements (see Special Options).
The UPECM FLEXIBLE range are
Airflow performance for the UPECM
series fans ranges from 500 up to
- Single phase motors in 4 or 6 pole speeds.
- Three phase motors in 6 pole speeds.
The UPECM series of fans are suitable
for many ducted noise sensitive ventilation
applications, including the ventilation
- Factory units.
- Cafes and bars.
All UPECM FLEXIBLE fans include the
- Casings are manufactured using a flexible
design, robust galvanised sheet
steel profile and panel construction
secured with die cast aluminium corners.
All top, base and side panels
include a layer of high grade Melamine
acoustic attenuating insulation.
- The fan and motor assembly can be
accessed through either of the side panels
which include pressure lock fixings.
- All fan-impeller assemblies are
mounted on anti-vibration mountings
within the cabinet.
- All internal fan-impeller assemblies are
connected to the discharge with a flexible
- Internal base frame for large power
All UPECM fan casings are manu-factured
from fabricated galvanised sheet
steel and internally lined with high grade
Melamine (M1 flame retardant type)
acoustic insulation material.
The UPECM casing design enables the
fan to be accessed from both side
panels, without having to remove the
casing from the ducting.
A wiring entry grommet is provided on
the duct outlet panel to facilitate wiring
Fan / Impeller
All UPECM cabinet fans include, as standard,
low pressure forward curved centrifugal
fan impellers manufactured from
pressed and formed galvanised sheet
All impellers are factory fitted to
the motors and dynamically balanced to
All motors are directly mounted to the
impeller scroll inlet by a tough electrowelded
electrical specifications apply:
- Single Phase, capacitor run and start,
- Three Phase, 230/400V 50Hz.
- All models include a Safety Thermal
Overload protection device. (autoreset
type on single phase motors).
Specials options - Please enquire
The UPECM FLEXIBLE range can be
manufactured to customer specific
dimensions or specifications.
The inlet panel can be supplied with or
without a rectagular ducting flange, or
with a circular ducting flange connector
of various diameters.
Both inlet and / or discharge ports can
be supplied in a vertical format.
A panel filter can be included, fitted integrally
on the inlet side of the unit which
can be accessed through either of the
side panels as per the motor assembly.
Weathering protection panels.
where the unit is intended for
exterior mounted installations, special
panels can be supplied to eliminate the
entry of water.