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Norton Door Closer Series 78B/D-RA RH 689

Norton78B/D-RA RH 689

Norton Door Closer Series 78B/D-RA RH 689

Manufacturer: Norton
Price: $489.41
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Standard - ships within 14 business days.
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Norton Door Closer 78B/D-RA RH 689
Commercial Heavy Duty Norton Door Closer

Aluminum Alloy Shell: Norton® closer shells
are constructed of a special aluminum alloy,
carefully selected to accommodate individual
closer characteristics and operating conditions.
Adjustable Spring Power: Clock-type coil
spring affords a wide range of closer power.
Permits a fine adjustment of the closer to the
Rack & Pinion Operation:Provides a smooth
transmission of power for control of the door
through its full opening and closing cycle.
Adjustable Sweep/Latch Speed:A dual
purpose regulating valve, hex-key-operated,
permits independent adjustment of both sweep
and latch speed.
Adjustable Backcheck Cushioning:An
independent regulating valve, hex-key-operated,
provides an adjustable hydraulic cushion to the
door opening speed toward the end of the opening
cycle. This feature is standard with all but
Delayed Action closers. Backcheck is not available
with Delayed Action closers.

Non-Hold Open Arm: Standard closer will be
supplied with a non-hold open arm. This arm is
non-handed.Hold Open Arm:Closer arm has adjustable hold
open feature (90° to 180°). This arm is non-handed
for regular arm application only. It is handed for all
parallel arm installations. Order by suffixing "HA" to
the Model Number.
Warranty: Limited ten-year warranty for defects and
life of the building on the aluminum housing.
Field Reversible: Closer spring can be field-reversed
to accommodate the hand of the door. It is recommended
that wherever possible the closer be ordered handed.
Parallel Hold Open arms and Delayed Action closers
are not reversible.
Norton Closer
All closers are shipped with self-drilling
sheet metal screws and machine screws.
• PR and UNI arms also have sleeve nuts as
part of the standard screw packs.
• Sleeve nuts (SN) are available for all
closers and should be used on steel doors
to prevent dimpling, or where proper door
reinforcement has not been provided.
• Standard sleeve nuts are for 1-3/4" (44mm)
doors. 1-3/8" (35mm) or 2-1/4" (57mm)
door thicknesses are available and must
be specified.
• Through-bolts and grommet nuts (TBGN)
are another fastener alternative for wood
doors. Specify door thickness 1-3/4"
(44mm), 1-3/8" (35mm), or 2-1/4" (57mm)
when ordering.
Item Specifications
689 (silver painted)
2, 3, 4, Adjustable 2-4
Special Features
Body Material
Cast Aluminum
All door closers are painted in water-borne acrylics. All steel parts, arms, brackets and mounting plates are powder coated. The closers will withstand 100 hours of salt spray.
Norton Closer
Norton Closers
Norton Closers
Norton Closers
Norton Closers
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