Rounded Corners

Restraining Duct & Pipes

A key factor in effective piping and ductwork restraint is site planning and coordination prior to installation. A first step is choosing between cable or rigid brace restraints. Selecting the proper restraint system requires a study of piping or ductwork placement and an examination of site conditions, including wall and ceiling location and construction.



The Vibro-Acoustics series of BC seismic beam clamps provide high strength attachments to steel structures without drilled holes or welded brackets for seismic restraint kits such as BulletBrace™ or RRK rigid restraint kit series.


Vibro-Acoustics’ BulletBrace preassembled adjustable cable restraint kits are used to restrain non-structural components against seismic, wind, or blast forces. BulletBrace kits are completely preassembled, a unique feature in today’s market, making them the fastest restraints to install.

SRK Cable Restraints

Cable restraints used for suspended and rooftop systems and equipment. Suitable for heavy load applications. Two sizes available at 1400 lbs and 2880 lbs maximum tension rating.


Seismic Pipe Stand

Our seismic pipe stands allow for quicker and easier pipe installation, and provide the required seismic resisting force when supporting the dead load.

Rigid Restraints

Rigid restraints used for suspended and rooftop systems and equipment

Component Design Considerations  
Indoor piping and ductwork If contents are hazardous, restraint locations and quantity will be
Roof Top
A determining factor for restraint locations will be whether the pipe is
constructed from ductile or non-ductile materials
Anchors must be approved for seismic restraint
The restraint system needs to be attached to the building structure Indoor piping and ductwork
Confirm that restraint anchor location (wall, beam, column, or slab) can
withstand seismic load
Piping &
ductwork risers
Should be restrained to shaft walls or floor slabs with structural members and anchors Piping & ductwork risers
Rooftop piping
and ductwork
Transverse and longitudinal restraints need to be attached positively to
the structure
Restraint supports need to be connected properly to the roof system