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Yale 4420T Full Cover Heavy Duty Holder Stop Thumbturn Door Closer
 

Yale 4420T

Yale 4420T Full Cover Heavy Duty Holder Stop Thumbturn Door Closer

 
Manufacturer: Yale
Price: $489.51
 
 
 
 
 
 
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Yale 4420T Full Cover Heavy Duty Holder Stop Thumbturn Door Closer

Installation Instructions Templates Product Brochure

STANDARD FEATURES OPTIONAL FEATURES
• Cast aluminum body
• Rack and pinion body
• Staked valves
• Separate and independent, latch, sweep and
backcheck intensity valves
• Non-handed
• 1-1/2" (38mm) diameter piston
• 5/8" (16mm) diameter pinion journals
• 2-1/8" (54mm) projection (standard covers)
• All standard arm applications allow doors to swing
180°, conditions permitting
• 10-year limited warranty
• Corrosion resistant model (4400S only)
• Metal cover
• Enhanced backcheck
• Delayed action with pressure relief valve
• Heavy-duty arms: Parallel Rigid, Holder/Stop,
Holder/Stop Spring, UNI Stop™
• Slide tracks

Holder/Stop Arm

Door closers shall have built in door stop [and holder] effective at one point selected at installation, from 85° - 110° in five degree increments. Door stop mechanism shall be non-handed and attach to soffit plate. [Hold open mechanism shall have engage/disengage selection actuated by thumbturn.] Closers shall be provided for parallel arm installation using rigid steel main and secondary arm.

Similar to the Parallel Rigid arm, this arm incorporates a ,stop at the arm’s soffit plate to dead stop the door at a predetermined degree of door swing between 85° and 110°, in 5° increments. Prior to dead stop the door closer’s backcheck feature slows the door speed to reduce the impact of the stop action.
Holder/Stop Arm is intended for use where an auxiliary door stop cannot be utilized and no more than moderate abuse is anticipated. Where more extreme conditions are expected, use of a UNI Stop™ arm is recommended.

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