4166-4188: Acoustic Accordion Doors
For higher sound control in meeting spaces, medical facilities, or religious institutions, this series takes sound attenuation to a higher level. High quality, with an FSTC of 41, both feature a perimeter seal, acoustic lining, and heavy-duty hardware. Available in two panel widths: 4166 is the dual 6” panel, and the 4188 incorporates the same pantograph geometry for ease of use with a larger 8” panel. Five discrete finishes are available. 6” and 8” styles available. Certified FSTC 41.
Acoustic
4166-4188 Product Specifications
- Panels: 6” or 8" wide by 1⁄2" thick medium density fiberboard with routed edge for vinyl hinging.
- Hinge assembly: 16 gauge steel, pantograph action for dualwall door assembly.
- Panel Connectors: Flexible vinyl, color-coordinated to panel selection, inserted and attached into routed edges.
- Track: 2” x 1-1/4” aluminum, pre-punched for screw fasteners for surface mounting.
- Sound Seal: Dual-wall door with internal acoustic material, flexible vinyl sweep strips mounted on top and bottom of the door. Wood molding mounted on both sides of track forming a wide sweep surface.
- Acoustical liner: Applied to inside faces of both walls.
- Wheels: Nylon-tired steel ball bearing wheels; 4 wheeled carriers on each volute and at lead post.
- Lead Post: Extruded aluminum, 3-7/16” x 4-7/8” cross-section, with jamb molding. Color-coordinated to panel connectors.
- Jamb Molding: 2-1/8” wide by 15/16” deep aluminum.
- Handle: Metal
- Latch: Deadlatch with thumbturn two-sides/one side and a range of keylock options available.
- Width: Contact Customer Service for connector options
- Height: Vinyl-Lam up to 10' 1"
- Stack Width: 4166 Series 14 1/2". 4188 Series 18 1/2"
*Field Sound Transmission Class: The dual-walled 4166-4188 Acoustic Partitions have field sound transmission class rating (FSTC) of 41. Field tests were performed by Acoustic Engineer of Eugene Oregon following the procedures specified in ASTM designation E 336-90.
Architectural Specifications
Woodfold's 4166-4188 (6” / 8” panels) Acoustical Folding Partitions (FSTC 41) utilize a rigid panel pantograph style design.An internal system of 16 gauge steel hinging acoustically decouples the panels on one face of the partition
from those on the other face, capturing sound energy in the partitions cavity.
Extruded vinyl hinges are securely locked into the routed edges of the ½” MDF panels.
Acoustical lining is applied to both interior faces in a configuration for sound absorption.
Continuous vinyl sweeps are applied to both pantographs at the top and bottom.
Bottom sweeps may be field adjusted to fit irregular floors. Each volute and the lead post are carried
by 4 nylon-tired steel ball bearing wheels. The 4166-4188 acoustic accordion doors are suspended from aluminum extruded
overhead track with a wood ceiling guard molding supplied as standard. All necessary hardware is included for normal installations.
Woodfold's Vinyl-Lam finishes are laminated to an engineered core to ensure excellent dimensional stability.
are laminated to an engineered core for excellent dimensional stability.
Combinations include: White and Chalk (White connector), Gray(Gray)
Dark Oak (Brown), Maple (Sand).