Features:
Underwriters' Laboratories Inc. Listed - units without built-in hold-open.
Center Hung Doors: Double or single acting (Door stop applied to frame renders unit single acting). Adjustable "S" type side loading or "A" type, "K" type and "PT" type end loading top arms are available for center pivoted applications.
Offset Hung Doors: Single acting. Offset "JO" and "VO" type top arms are available for butt hinge or offset pivot applications.
Speed Valves: Two speed control valves: Closing and latching speeds controlled by separate regulating valves, fully adjustable after installation.

Options:

Built-in positive back stop and hold-open positions available:
105 Deg. back stop with hold open
105 Deg. back stop no hold open
90 Deg. back stop with hold open
90 Deg. back stop no hold open

ADA (Handicap) spring tensions available for use on center pivoted applications:
5 lb. opening force (interior door)
8-1/2 lb. opening force (exterior door)