7570 Series

The Security Closer Line uses Norton's 7500 series door closers with a variety of regular rigid and parallel arms and track options. Fixed link arm assemblies, permanent joints, orbital riveted elbows, arm shoe, soffit joints and Torx® screws with tread lock prevent disassembly. Norton's 7500 and 8000 series door closers are also offered with some of the same arm options as the 7570 but without the security cover. Torx screws are available standard for tamper resistance. These closers are utilized in schools and industrial environments where heavy abuse and vandalism may occur.

Specifications

7570 Series
Closers for interior and exterior doors shall be full rack-and-pinion type with cast aluminum alloy body. Closers shall be surface mounted and shall project no more that 2-3/16" from the surface of the door. Closers shall be reversible but supplied with a handed metal cover. Closer fluid shall contain lubricity and anti-oxidation agents. Closer fluid shall maintain stable viscosity to allow door closer to perform in temperatures ranging from extremely high to as low as -40°F. Closers shall have multi-size spring power adjustment to permit setting of spring from 1 through 6. Closers shall have two non-critical valves, hex key adjusted, to independently regulate sweep and latch speed. Closers shall have backcheck cushioning controlled by a hex key adjustable valve. Closers shall have backcheck position controlled by a hex key adjustable valve. [Closers shall have adjustable delayed action closing controlled by a hex key adjustable valve.] **Closers shall be enclosed in a [plated] [sprayed] metal cover. Closers to be Norton® [7570]. Covers shall be fastened to the body at four points, two at the top and two at the bottom to prevent prying. **For special arms insert the appropriate specification.

**Unitrol® Arm
Door closers shall have built-in door stop effective at one point selected at installation, from 85° - 110° in five degree increments. Door stop shall be cushioned by a shock-absorbing heavy duty spring action effective at the soffit plate pivot. Closers shall be provided for parallel arm installation using rigid steel main arm and secondary arm lengths proportional to the door width.

**CloserPlus® 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 reversible and attached 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 arms.

**CloserPlus Spring™ 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 have a buffer spring that engages prior to the dead stop feature, reducing shock loads to the door and frame assembly. Door stop mechanism shall be reversible and attached to soffit plate. [Hold open mechanism shall have engage/disengage selection actuated by thumbturn]. Closers shall be provided for parallel installation using rigid steel main and secondary arms.

Finishes

605
Bright Brass

606
Satin Brass

611
Bright Bronze

 
612
Satin Bronze


613E
Dark Oxidized
Satin Bronze,
Equivalent

 619
619
Satin Nickel 

 
625
Bright Chrome

626
Satin Chrome 

689
Aluminum 
 
690
Statuary Bronze


691
Dull Bronze


693
Black

694
Medium Amber
 
696
Gold
 

Features

  • Adjustable spring sizes 1 through 6 (ADA Compliant)
  • Security arms – joints feature permanent, orbital riveted elbow and arm shoe/soffit plate joints which prevent disassembly

 

 

  • Adjustable backcheck cushioning and positioning
  • Torx drive machine screws with security pin

Optional Features

  • Hold open
  • Heavy-duty arms: Regular Rigid, Parallel Rigid, CloserPlus® and CloserPlus Spring™

 

 

 

  • Delayed action
  • Enhanced backcheck
  • Slide track – push or pull mounting

Typical Applications

Recommended for interior or exterior doors – areas where vandalism, abuse, escape or personal injury are major concerns including:

 

 

 

  • Prisons
  • Government Buildings
  • Schools
  • Financial Institutions

Certifications

  • ANSI/BHMA A156.4, Grade 1 certified
  • UL listed

 

 

 

  • UL10c compliant for positive pressure
  • 25-year limited warranty 

Questions?

Customer Service:
800.438.1951 x Ext 6701
(8am - 4:30pm Eastern)

 

Technical Product Support:
800.438.1951 x Ext 6030
(8am - 4:30pm Eastern)

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