Seismic Elastomeric Twin Seal System

Part Number:
SWNB/SWNBw
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Description

The Seismic Elastomeric Twin Seal System offers protection of expansion joints in a seismic event. This system is constructed of two rubber seals and an aluminum slide plate. This system allows for multi-directional movement with a seismic centering bar.

Features

  • Continuous Sight Line
  • Horizontal and Vertical Thermal Movement
  • Seismic Movement with Lateral Shear
  • Surface Mount
  • Coordinating Corners
  • 4 Complementary Seal Colors
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Specifications

Model SWNB/SWNBw
Material 6063-T6 Aluminum with Rubber Seal
Finish Mill
Movement Thermal: Horizontal and Vertical
Seismic: Lateral Shear
Mounting Surface
Joint Size 4 inches to 24 inches
Length 10 Linear Feet
Application Interior
Installation Wall or Ceiling
Options Seal Color, Moisture Barrier, Fire Barrier
Warranty 1 year

Order Guide

Use the table below to guide specification of available options. The part numbers are indicated in BOLD ORANGE text.

MODEL INSTALLATION JOINT SIZE
at mean T°F
SYSTEM
HIDTH
TOTAL
MOVEMENT
SWNB-400 Wall-to-Wall 4" (102mm) 11.88" (302mm) 4" (102mm)
SWNB-400w Corner 4" (102mm) 7.94" (202mm) 3.25" (83mm)
SWNB-600 Wall-to-Wall 6" (152mm) 15.88" (403mm) 7" (178mm)
SWNB-600w Corner 6" (152mm) 10.94" (278mm) 5.75" (146mm)
SWNB-800 Wall-to-Wall 8" (203mm) 17.88" (454mm) 10" (254mm)
SWNB-800w Corner 8" (203mm) 12.94" (329mm) 7.75" (197mm)
SWNB-1000 Wall-to-Wall 10" (254mm) 21.88" (556mm) 13" (330mm)
SWNB-1000w Corner 10" (254mm) 15.94" (405mm) 11.25" (286mm)
SWNB-1200 Wall-to-Wall 12" (305mm) 23.88" (607mm) 16" (406mm)
SWNB-1200w Corner 12" (305mm) 17.94" (456mm) 13.25" (337mm)
SWNB-1800 Wall-to-Wall 18" (457mm) 33.88" (861mm) 25" (635mm)
SWNB-1800w Corner 18" (457mm) 25.63" (651mm) 21" (533mm)
SWNB-2000w Wall-to-Wall 20" (508mm) 42.88" (1089mm) 34" (864mm)
SWNB-2000w Corner 20" (508mm) 33.13" (842mm) 28.5" (724mm)

WARRANTY

NYSTROM warrants all Expansion Joint Systems to be free from manufacturing defects in materials, factory finishes, and workmanship for a period of one (1) year from the date of shipment.

Should a product fail to function in normal use within this period, Nystrom shall furnish a replacement or new part at Nystrom's discretion. Failure to use product in methods consistent with Nystrom product manuals shall relieve Nystrom of any liability. Our liability under this warranty excludes installation or removal costs involved in the product replacement and excludes any responsibility for incidental or consequential damage of any nature.


For information on a warranty claim, please visit our Warranty Support section or call 800 547-2635.

Warranty Support

Videos

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Description Model Shop Drawing CAD Revit/BIM Data Sheet 3-Part Specs LEED Installation Warranty
Wall-to-Wall
Ceiling-to-Ceiling
SWNB PDF DWG ZIP PDF WORD WORD PDF PDF
Corner SWNBw PDF DWG ZIP PDF WORD WORD PDF PDF

Specifications

Material:
6063-T6 Aluminum with Rubber Seal
Finish:
Mill
Color:
Gray, White, Beige, Black
Length:
10 Linear Feet
Installation:
Wall, Ceiling
Mounting:
Surface