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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: $850.82
  Volume Price Information  
 Buy 20 or more and pay $830.82 each (save $20.00) 
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Availability Information
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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Questions and Answers
Q: Hi, my question is, can install this Norton Door Closer Series 78B/D-RA RH 689 on an arch steel door? it's a new double door unit and I have to use 2 self closers one for each door, about 200 pounds. My Door Elevation can be reviewed here:

Download File

A: The answer is yes you can. Please draw your attention to page 17 of the Norton Traditional "Potbelly" Door closer catalog where you will see two bracket options to use this closer on an arch top door as seen here:

Download File

Please be midfull to follow the handing requirements mentioned when using these closers specifically with the #6 bracket (they require use of the opposite hand closer body).

For fun and perhaps inspiration I submit to you this excerpt from the Corbin Product Catalog from 1932 catalog as seen here:

Download File

Having said all this too be mindful these door closers are not ADA compliant and carry just a Grade 3 rating (the lowest grade on hardware and is considered residential grade). A floor closer might be an option.

Q: Thank you for your response! Regarding the info about this closer being the lowest grade on hardware and considered residential grade. What would you recommend as an option for commercial grade? Rafael
A: I would recommend a floor closer. Can you send me a cross-section of the jamb and door detail, can you tell me what you are using to hang the door in terms of hinges or pivots or if that has not been already specified I can specify that as well and can you show me a sill section?
Q: Thank you for your help with this! Regarding the info about this closer being the lowest grade on hardware and considered residential grade(highlighted paragraph below.) What would you recommend as an option for commercial grade?
A: Please tell me what type of hinge you are using to hang the doors or if you require that I specify hinges as well?
Q: We are using a regular steel hinge 1 inch body with brass pin
A: Could you please be more specific as I do not understand your description of the hinge that you are using?
(Required, used to email you once question is answered.)
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