Sonafold Acoustic Folding Door

Application

Suitable for the closure of internal or external openings where a reduction in noise transmission is required. They have been provided on many power stations worldwide, where they enhance the acoustic envelope of buildings such as turbine halls.

Description

Steel acoustic folding door. The flat-faced robust construction renders it capable of withstanding severe wind conditions.


Features and benefits:

  • Door panels: constructed from 2 mm-thick, double-skin steel sheets, infilled with high-density rockwool. The door panels are 54 mm thick and are flush in appearance.
  • Seals: high-quality ethylene propylene diene monomer (EPDM) seals are fitted in-between the panels and at the jambs. Brush seals are fitted at the top and bottom.
  • Top track: galvanized steel rolled section, forming a box-type track on which pulleys run, mounted on the top of the door panels. A branch track is incorporated to allow the door to stack correctly. Brass rollers connected to the bottom hinges run on a steel channel bottom track, which is set for alignment within a 200 x 75 mm chase, before finally being grouted into position.
  • Bottom track: a galvanized steel bottom track is recessed into the floor, and acts as a guide.
  • Door arrangements: pairs of panels make up each door or half door (between two and ten on each side). The door is face-fixed to the inside, and the panels stack at 90° to the opening when open.
  • Operation: electrical operation is via a three-phase geared motor, mounted on the top track at one or both ends. Push-button controls are provided at low level, and emergency manual operation is via hand chain, which is connected and disconnected at low level.

General information

Size

Insert reference

-

Color

A range of RAL colours available.

-

Finish

Galvanised as standard. Polyester powder-coating to a range of standard RAL colours is available at extra cost.

Galvanized

Standard.

Polyester powder-coated

Material

Carbon steel

EPDM

Rockwool

Shape

Rectangular

WarrantyDescription

12 months

Uniclass 2015

Pr_30_59_24_80 Sliding door and partition setsPrimary
Pr_30_59_34_14 Carbon steel gates
Ss_25_32_35_30 Folding gate systems

CAWS

Pr_30_59_34_14 Loose laid gas retardant damp proofing

L20/530 Sliding folding external doors

L20/535 Sliding folding shutter doors

L20/60 Doors

Product range

Folding Doors

Specification data - Sliding door and partition sets Enhanced data

Third party accreditation

University of Salford Acoustic Test Laboratory.

Performance

28 dB Rw acoustic rating.

Arrangement

Bi-parting.

Available up to 24 x 9 m.

Bunching to one side.

Available up to 12 x 9 m.

Track system

Top track: Galvanized steel rolled section, forming a box-type track on which pulleys run, mounted on the top of the door panels. A branch track is incorporated to allow the door to stack correctly; Bottom track: A galvanized steel bottom track is recessed into the floor and acts as a guide. Brass rollers connected to the bottom hinges run on a steel channel bottom track, which is set for alignment within a 200 x 75 mm chase before being grouted into position.

Door leaves

-

Construction

2 mm-thick, double-skin steel sheets, infilled with high-density rockwool. The door panels are 54 mm thick and are flush in appearance.

Finish and colour

Galvanized.

Standard.

Polyester powder-coated, RAL .

Insert requirement.

Operation

Powered.

Accessories

None

Safety photocells

Wicket doors with cylinder lock

Product Reference

Sonafold Acoustic Folding Door

Size

Insert reference

-

Literature

Sonafold Top Hung Acoustic Folding Doors

Sonafold Top Hung Acoustic Folding Doors

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