Staked valves Standard, separate and independent, latch, sweep and backcheck intensity valves Cast aluminum body Rack-and-pinion design 1-1/4" (32mm) diameter piston 5/8" (16mm) diameter pinion journals 2-1/8" (54mm) projection (standard covers) All standard arm applications (with slim, full or metal covers) allow doors to swing 180 degrees, conditions permitting 8300/8301 - shipped with slim-line plastic cover Full size template Delayed action Finishes: Aluminum 689, Statuary 690, Dull Bronze 691, and Brass 696 Closer Mounting Drop Plate 8146 Drop Plate: For use where low ceiling clearance prevents normal top jamb mounting. This plate is used when clearance is from 1-7/8" to 2-7/8" (48 to 73mm). Where ceiling clearance is less than 1-7/8" (48mm) 8148 Drop Plate: For use where a narrow top rail prevents the closer from being mounted directly to the door surface. This drop plate can be used to mount a closer on a top rail as narrow as 2-7/8" (73mm) in he
