BTS-80-L Floor Closer Package

Description

3/4” Offset Hung
Single Acting
Extra Heavy (Lead Lined) Doors

 

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Clearance: 3/4” from floor to bottom of door

 

The spindle furnished (74010) is designed for a 3/4” undercut and returns the door to zero degrees.  Other spindles are available and may be changed in the field.  It is important to know the undercut before ordering so you can receive the correct spindle.

SPINDLE	UNDERCUT	RETURN DEGREE
74003	5/16”	zero
74005	1/2”	zero
74010	3/4”	zero
74015	7/8”	zero
74020	1-1/8”	zero
74025	1-5/16”	zero
74030	1-1/2”	zero
80003	5/16”	3 degree offset – handed
80005	1/2”	3 degree offset – handed
80010	3/4”	3 degree offset – handed

 

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Packages:

Package D and Package L are nearly identical.  Both come with a spindle for a 3/4” undercut door.

D = for doors up to 300 lbs.

L = for doors over 300 lbs.

Typically, the L package is ordered for lead-lined doors used in hospitals.  It may also be used on other extra-heavy doors.

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Door Swing:

Double Acting – Swings both ways (may be installed so it only swings one way by adding door stop to frame)

Single Acting – Swings one way only

All Offset Hung closers are Single Acting.

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Center Hung vs. Offset Hung:

Center hung closers are rarely ordered as they are designed for special applications.  An example would be an “invsible” door that blends into a wall.  One advantage of center hung closers is the hardware is concealed.  A disadvantage is a special door bevel is required.

Offset hung closers are by far the most popular and cause doors to swing in a similar fashion to butt hinges.  In both cases, the pivot point is offset from the door.  Standard commercial doors are designed to swing in a “offset” style.