One thing common to some of our favorite performance vehicles lately, from the Chevy ZR2 pickup truck to the Ford GT supercar, is the shocks –- they use Multimatic DSSV damper technology. It was just ...

Greenheck’s recently UL-approved, three-sided retaining angle installation method for fire and combination fire smoke dampers is ideal for installations where the damper sleeve is tight up against a ...

A bimetal temperature limit (heat responsive device in UL’s parlance) is in the 4-by-4-inch electrical box at the bottom left portion of the damper sleeve. If it heats up above its specified ...