SOD [a]

Main features

• Rectangular reinforced sound-attenuating transfer air unit
• Designed for security ventilation, e.g. detention/care rooms
• Robust construction with 6 mm perforation
• Meets national recommendations for security facilities (SE)
• Eco-friendly insulation with effective sound attenuation performance
• Mounting frames included for quick and easy installation wall installation
• Fibre protection sleeve OFI-R, available for insulated stud walls.

Description

• SOD [a] (SÖD) is a wall mounted reinforced sound-attenuating transfer air device, designed for installation facilities with security requirements, e.g. cells or detention premises where fixed installation is desired.

• The unit is available for three different rectangular cut-out widths with common height and projection:

– SOD-300 / SOD-550 / SOD-800: (nom).

• The unit features a robust construction with a solid front face and partial 6 mm perforation.

• The unit is designed to meet the recommendations for special facilites according to swedish standards and also corresponds to the penal service design requirements to minimize self-harming behavior.

• For spaces requiring increased security or premises with a higher security classification, the complementary product S2Ö (2 mm perforation) is available as an alternative.

• For insulated stud walls, the accessory OFI-R (ÖFI-R) is recommended, an elastic wall penetration sleeve for transfer air units that prevents the spread of insulation fibres in air flows. Unlike conventional sheet metal wall penetrations installed for the same purpose, OFI-R does not impair the sound properties of the transfer air device.


Delivery form

• The product is delivered in pairs, including mounting frame RAM-SOD/SÖD [a].

 

Product sizes (mm)

Designation | Front panel (B x H) | hole dimension (B x H)

SOD-300 | 420 x 200 | 255 x 65 mm
SOD-550 | 670 x 200 | 505 x 65 mm
SOD-800 | 920 x 200 | 755 x 65 mm

 

Colours

• Powder coated, white RAL 9003 (standard)
• The product can be supplied in alternative colours on special order.

 

Accessories

• OFI-R (ÖFI-R): Fibre blocker for transfer air units that prevents the spread of insulation fibres in air flows.

– Elastic wall penetration sleeve for transfer air units mounted in insulated stud walls that prevents spreading of fibres and particles into the air flow. 

– Does not affect free area or sound performance, unlike sheet-metal wall penetration sleeves.

– Made from environmentally friendly, flexibe and flame-retardant material.

– Complies with current recommendations for OVK inspections.

– Can be combined with the following rectangular transfer units: OLS/ÖLS, SOD[a]/SÖD[a], E5*2

– Available in circular version, OFI-C (ÖFI-C)

 

*2) E5 or other rectangular product supplied or ordered in pairs for transfer air purposes, must be within the dimensions W ≤ 800 och H = 50 mm.

 

Sizes OFI-R (ÖFI-R) (mm)
– Supplied in 4 separate parts that is fitted together in rectangular hole cuttings.
– Available in three different widths with a fixed height of 50 mm.

 

Wall depth | for cut-out (nom, BxH) | Designation

70 mm | W≤300 x H=50 | OFI-R70-300
95 mm | W≤300 x H=50 | OFI-R95-300

70 mm | W≤550 x H=50 | OFI-R70-550
95 mm | W≤550 x H=50 | OFI-R95-550

70 mm | W≤800 x H=50 | OFI-R70-800
95 mm | W≤800 x H=50 | OFI-R95-800


• SOD/SOD [a]: The product is made of sheet steel, powder-coated in white RAL standard color, internally insulated with washable and surface-coated sound absorber. The product's insulation consists of 100% recycled, non-allergenic, hydrophobic PET plastic material. It is free from formaldehyde and, when burned, only carbon dioxide and water are produced.

 

• RAM-SOD/SÖD: Mounting frame, made of hot-dip galvanized sheet steel.

 

• OFI-R: Made from environmentally friendly, flame-retardant polyurethane foam. The material is CertiPUR and Oeko-Tex certified.


• The product is installed in pairs with the supplied mounting frames on either side of a wall over a rectangular holecutting.

• The inner dimensions of the included mounting frames can be used as a cutting template.

• Each frame is marked with a centred arrow cut-out. The frames must be installed with the arrow pointing upwards for correct wall mounting.

• The frame parts have pre-drilled holes for screw mounting. Each frame is secured with screws (not included).

• The diffuser body is secured to the ceiling or wall with 6 mm wood screws with a flat countersunk head.

• The diffuser front is riveted with 5 mm stainless steel rivets and additionally secured with 6 mm flat countersunk head wood screws as deemed necessary. Rivets are included in the delivery, other mounting materials are not included.

• When fibre protection sleeve OFI-C / ÖFI-C is used, the protection sleeve must be placed in the cut-out before installing the transfer unit and mounting frame.

• The sleeve penetration's elastic and self-tensioning properties make it easy to press into the hole in the stud wall.