BD TWINBOX 12/12

CENTRIFUGAL BELT DRIVE TWINFAN WITH FORWARD CURVED IMPELLER IN SOUNDPROOF CABINET

MANUFACTURING FEATURES

• Impellers made of polyamide reinforced with fibreglass up to size 12/12 (33/33). Other models are made of galvanised steel sheet.
• BD , BDC , BDP range fans assembled in soundproof cabinets with thermo-acoustic insulation, Bs1d0 fire class.
• Fan assembled on antivibration mountings.
• Supplied with motor, pulleys and belts.
• Connection gland included.
• Squirrel cage asynchronous standard motor, IP-55 protection and rated class F insulation. Standard voltages 230/400V 50Hz for three phase, motors up to 4kW and 400/690V 50Hz for higher powers.
• Fans can run separately or simultaneously.

APPLICATIONS

Designed for inline installation, indoor or outdoor assembly, they are suitable for:
• Air renewal in buildings and industries.
• Industrial and professional kitchen hood.
• Maximum working temperature: 60ºC.

UNDER REQUEST

• 2 speed motors.
• LG0 position. Add 10% additional cost.
• Impeller made of galvanized sheet.
• Aluminium box up to size 12/12.

* All data are referred to a single working fan. If both fans are working at the same time, data should be twice (x2) except for weight.

Fan

Max flow

9080 m³/h

BD TWINBOX 12/12

Design point

Service point

Degrees

RPM

Temp. max. (ºC)

Q (m³/h)

Ps (Pa)

Pd (Pa)

Pt (Pa)

Speed air (m/s)

Security coefficient

Mechanical total efficiency (%)

Total efficiency (%)

Pw_mec

Pw_mec (kW)

Pw_abs (kW) 1.2 Kg/m³

Pw_recom (kW)

Alternative point

BD TWINBOX 12/12

A	B	C	D	E	F	H	I	J	K	L	M	N
1220	651	872	409	351	84	216	940	423	104	123	23	17

BD TWINBOX 12/12

Model

PI 33/33 (12/12)

Information

METALLIC GRAVITY SHUTTER FOR CABINET FANS. CERTIFIED 400ºC/2H

MANUFACTURING FRATURES

• Frame made of galvanised sheet and shutters made of aluminium.
• To be fitted on centrifugal fans likeBDL FIRE F400, DD BOX and BD BOX.
• Certified 400ºC/2h.

Model

TIAC 4 (OUT)

Information

INLET/OUTLET ROUND COVER

MANUFACTURING FEATURES

• Allows duct connection.
• Made of galvanized steel.

Model

VIS OUT 12

Information

OUTDOOR FLANGE WITH BIRD GUARD

MANUFACTURING FEATURES

• Outdoor flange with bird guard.
• Made of galvanized Steel.
• VIS OUT = Outlet
• VIS IN = Inlet

Model

BAC 4 (OUT 12/12)

Information

RECTANGULAR-CIRCULAR ANTI-VIBRATION FLANGE

MANUFACTURING FEATURES

• Accessory for connection of DD BOX, BD BOX and BDL FIRE F400 cabinet fans to a circular duct using anti-vibration canvas.
• Fire resistance M0 of -50ºC to 200ºC in continuous and 400ºC/2h.

Model

SFC (GENERIC)

Information

FREQUENCY SPEED CONTROLLER

MANUFACTURING FEATURES

• Specially designed for speed frequency control in ventilation applications.
• Ultra compact, simple operation and wide range of functions.

*Dial panel incorporated. Optional EMC filter.

Certifications: CE/UL/CSA/EN/GOST/CCC.

Protection index IP20.

The selection of SFC frequency drive speed controller must be made based on the maximum intensity absorbed by the fan to be regulated. The powers (kW) and the intensity for constant load refer to the normal duty (150% overload for 60 seconds). The intensity for quadratic load admits an overload of 110% during 60s.

SFC 230: Entrance 230V I, exit 230V III
SFC 400: Entrance 400V III, exit 400V III

EMC filter incorporated for models from 47A (included)

*Lineal load rated current

**Quadratic load rated current

Model

INT (GENERIC)

Information

SAFETY SWITCH

MANUFACTURING FEATURES

• Safety start-stop switches according to IEC 60947-1 and IEC 60947-3.
• IP65 and always equipped an auxiliary contact.
• Useful for switching off the current before handling the fan.

*Máx. thermal current air (A)

Model

AVS (GENERIC)

Information

ANTI-VIBRATION SPRING BLOCK

MANUFACTURING FEATURES

• Metal insulators designed to work with compression with 85% insulation according to the following arrows (travel in mm) and rpm:

Arrow (mm.)    r.p.m.
    20 mm          >600 r.p.m.
    30 mm          >500 r.p.m.

• Made of high quality elastic steel, with rectangular base and rubber mat to improve the grip. It treats of a resistant product and easy assembly, that avoids all type of vibrations of the fans to the structure of the premises.
• Operating temperature from -45 ° C to + 120 ° C.

APPLICATION

• To install under machines with rotating components, ventilation groups, fans, ventilation boxes, etc.