Product Overview
ATS-ATUD14 Take-Up Device
The ATUD and TUD expanding take-up devices are suitable for rod diameters from 1/2" up to 2" and shrinkage up to 3". Expanding screw-style take-up devices provide the lowest device displacements. For installation, ensure that the activation pin is pointing up and facing toward the inside of the building space. The pin can be pulled anytime after the nut has been tightened onto the top bearing plate and must be pulled by the time the building is fully loaded. Shrinkwrap should remain on the device until the pin is ready to be pulled. Before activating an ATUD make sure the pin on the take-up device on the floor below has been pulled.
The ATUD and TUD are now rated as UL-qualified through-penetration firestop systems. The devices received F (flame) and T (temperature) ratings per ASTM E814 when they are installed in conjunction with the Simpson Strong-Tie BPRTUD steel bearing plate (RTUD) or the PL steel bearing plate with top plate and nut (ATUD and TUD), eliminating the need for additional fire resistance material at the hole in the plate.
ATUD Features
- Easy to install
- Lowest device deflection
- ATUD fits up to 2" diameter rods
TUD Features
- Easy to install
- Lowest device deflection
- Coated for corrosion protection and lubricity
- TUD fits up to 1-1/4" diameter rods
- ATUD — ASTM B221 6061-T6511 aluminum; TUD — ASTM A311 Class B, Grade 1144
- ATUD — none; TUD — corrosion resistant finish
- Install the specified bearing plate over the threaded rod onto the bottom plate of the wall.
- Install ATUD/TUD, with either end up, over the threaded rod and onto the bearing plate with the activation pin facing out.
- Install specified plate washer and then nut on top.
- Finger-tighten nut plus an additional 1/3- to 1/2-turn with a wrench.
- Remove shrink wrap from ATUD/TUD.
IMPORTANT: Do not remove activation pin until nut is installed. - Remove activation pin.
