Delayed Action – Prefix DA
 
After full open permits door to remain ajar
( at 70 degrees ) for up to 40 seconds.
Operates by separate valve and can be shut
off if not needed. Not available
on closers with hold open feature.
 
Sealed Closer – Prefix SC
 
This option for exterior doors or interior doors with
heavy exposure to water or cleaning solvents, protects
the body. The closer body is placed in the cement
case. A stainless steel cover plate is then gasketed and
fastened to the cement case. This must be ordered
with closer and cannot be ordered less the cement
case.