AVB stands for Advanced Variable Backcheck. It is a cylinder option when ordering a 4111 closer (without an ST) that allows backcheck to start at about 45 degrees instead of the normal 75 degrees...
Product shipped on or after Feb. 8th, 2016
The "3034" and "3034H" are internal part designation that LCN uses to specify regular (3034) and hold open ...
On Feb 8th, 2016 - LCN launched the redesign of the Hold open clip which changed multiple components of our Track style closers, including the roller, track, hold open clip, and bumper.
The 2030 closer requires a minimum 1-3/8" top rail on the door for the standard track.
For a top rail less than 1-3/8" and as narrow as 1", you could use the l...
Optional closer reinforcements are located at 3" from hinge jamb to the beginning of the reinforcement plate. This applies to Regular Arm, Parallel Arm, Top Jamb.
Regular Arm (RA) closer reinfor...
The 3130 Series closer is UL listed- Fire Rated (UL-10C) for up to 3 Hr.
The Door and Frame Manufacturer needs to be contacted to verify their Door/Frame rating would not be ...