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CRKA
Model
CRKA 355 M4 0,25kW

CRKA 355 M4 0,25kW

ROOF FAN WITH FOLDING SYSTEM AND ALUMINIUM COWL

MANUFACTURING FEATURES:

  • Protection cowl made of anticorrosive treated aluminum easily removable for motor and impeller maintenance thanks to the integrated folding system.
  • The design of the cowl with a rounded shape is specific to minimize the risk of water ingress due to rain.
  • Equipped with a hinged system to open the motor-impeller set. This system allows easy maintenance and cleaning of the set without the need to disassemble the entire structure. The opening is possible in 2 inclinations: approximately 45º and 90º, as required by the intervention.
  • Structure in anticorrosive galvanized steel and support frame for adaptation to the roof with anti-bird protection grid.
  • High-performance, backward-curved blade (reaction) impellers designed to work without scroll. Self-cleaning system, built in galvanized steel treated with anti-corrosion.
  • Standard asynchronous squirrel cage motor with IP-55 protection and Class F insulation. Standard voltages of 230V50Hz for single phase motors, 230/400V50Hz & 400/690V 50Hz for three-phase 1 speed motors and 400V50Hz for 2 speed motors.

APPLICATIONS

Designed for deck or roof mounting, they are indicated for:

  • Smoke extraction.
  • Air renewal in all types of buildings and industries.
  • Maximum continuous working temperature: transported air 80ºC, ambient 60ºC to -25ºC in three-phase motors.

UNDER REQUEST

  • Special voltages.
  • Special contruction for moving air at 120ºC

Fan

Max flow
3610 m³/h
Weight
41 Kg

Motor

Power
0,25 kW
RPM Motor
1410
Capacitor
12µF 450V
I max. 230 V
1,6
Size
71
Weight
6.5 Kg
Efficiency
68,5 %
FP
0,99
CRKA 355 M4 0,25kW
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Design point
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Alternative point

CRKA 355 M4 0,25kW

Dimensions scheme
A (int) B C D
662 860 624.5 365

CRKA 355 M4 0,25kW

Electrical scheme

CRKA 355 M4 0,25kW

Model
INT 25 3P A
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
AC 350
Information
CONNECTION FLANGE

MANUFACTURING FEATURES

• For axial (inlet and outlet) and centrifugal (inlet) fans.

UNDER REQUEST

• Versions in stainless 304 and stainless 316.

Model
BAD 10
Information
CIRCULAR-CIRCULAR ANTI-VIBRATION FLANGE

MANUFACTURING FEATURES

• Circular-circular coupling flange through anti-vibration canvas.
• Fire resistance M0: from -50ºC to +200ºC in continuous and 400ºC/2h

Model
KV CRK 355
Information
KENTALROOF VERTICAL DISCHARGE

MANUFACTURING FEATURES

  • Accessory to convert the KENTALROOF roof fan to vertical discharge.
    • Manufactured in aluminuim
Model
CMP-HUT 500x510
Information
DEPRESSION DAMPER (HORIZONTAL or VERTICAL PLACEMENT)

Depression damper for ascending air flow in the intake. The slats block the passage of air when the fan is stopped while when the fan is running the slats move by depression allowing the passage of air. Robust U-shaped frame. The special holes in the corners allow a connection with common union systems on the market such as a duct working in plenum mode. It maintains the overpressure or depression inside a room with respect to the outside or another adjoining room.

MANUFACTURING FEATURES:

- Galvanized steel frame, U-shaped to install in a duct.

- Aluminum slats.

- Ø12 shafts in galvanized steel.

- Ø12 bronze bushings.

- Suitable for 400°/2h (not certified) and temperatures below zero.

- It can be installed directly to the fan, although the use of the frame (B CMP) is recommended.

- Suitable for speed 18 m/s and with some turbulence.

Model
BTI+AMC 640
Information
BTI + AMC MOUNTED

Suitable for installa ASIL in a roof fan using a BTI

Made of galvanized steel

Model
BTI+ACMP+AMC 640
Information
BTI + ACMP+AMC MOUNTED

Suitable for install both CMP-HUT and ASIL in a roof fan using a BTI

Made of galvanized steel

Model
BTI+ACMP 640
Information
BTI + ACMP MOUNTED

Suitable for installa CMP-HUT in a roof fan using a BTI

Made of galvanized steel

Model
SIL-C 355/355
Information
CIRCULAR SILENCER

MANUFACTURING FEATURES

• Valid for mounting in inlet and outlet according to the diameter of the corresponding pipe or adapted to the diameter of an optional flange. Consult to Casals Ventilación.
• Steel housing with thickness of 0.8mm for diameters up to 1250mm; and 1mm for higher diameters.
• Silencer flange with threaded inserts.
• Acoustic rock wool insulation of 70Kg/m3 with microperforated metal mesh that protects the fiberglass from erosion. Fire resistant insulation M0.
• Attenuation test carried out according to the ISO 7235 standard.
• Drills in accordance with Eurovent regulations.
• SIL-CN are equipped with an inner core that increases silencer attenuation.
• Maximum working temperature: 150ºC.
• Suitable for pressures up to 1000Pa

APPLICATIONS

• For attenuating the sound level of the fan.
• For coupling fans and circular pipes.

Other sizes, consult us.

Please confirm

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