A member of the Yale Security Group

SPECIFICATIONS / FINISHES

GUIDE SPECIFICATIONS

7770

Suggested Specification

Closers for ________ interior (and) exterior doors shall be full rack-and-pinion type with cast aluminum alloy shell. Ann and Closer shall be secured to the frame with TORX security fasteners. Closer shall be surface-mounted and shall project no more than 2- 3/8" (60mm) from the surface of the door. Hydraulic fluid shall be non-gumming, and non-freezing. Closer shall have two non-critical valves, hex-key-adjusted, to independently regulate sweep and latch speed. Closer shall have backcheck cushioning controlled by a hex-key-adjusted valve. Closer shall have backcheck positioning controlled by a hex-key-adjusted valve. Closer shall have adjustable backcheck beginning at 15°. Closer shall have delayed action closing controlled by a hex-key-adjusted valve. Closer shall have power adjustment to permit a 50% increase in power over the minimum closing force for any size. Closer shall be enclosed in a metal cover fastened to the housing at four points with TORX security fasteners. Closer finish to be ________Norton finish. Closers to be Norton Series 7770 or 7770EBC.

ANSI/BMHA/Federal Specs

The Series 7770 door closers have been designed and are manufactured to meet or exceed Grade 1 requirements of ANSI Standard At 56.4.

7570

Suggested Specification

Closers for_____ interior (and) exterior doors shall be full rack-and-pinion type with cast aluminum alloy shell. Arm and Closer shall be secured to the frame with TORX security fasteners. Closer shall be surface-mounted and shall project no more than 2-3/8" (60mm) from the surface of the door. Hydraulic fluid shall be non-gumming, and non-freezing. Closer shall have multi-size spring power adjustment to permit setting of spring power from size (1-4)(2-6) with additional spring power available. Closer shall have two non-critical valves, hex-key-adjusted, to regulate sweep and latch speed. Closer shall have backcheck cushioning controlled by a hex-key-adjusted valve. Closer shall have backcheck positioning controlled by a hex-key-adjusted valve. Closer shall have adjustable backcheck beginning at 15°. Closer shall have adjustable delayed action closing controlled by a hex-key-adjusted valve. Closer shall be enclosed in a metal cover fastened to the housing at four points with TORX security fasteners. Closer finish to be _________ Norton finish. Closers to be Norton Series 7570, 7570BF, 7570EBC or 7570BF-EBC.

U.L. Listing

All Norton Series 7560/7570/7760/7770 Closers with non-hold-open arms are listed by Underwriters' Laboratories, Inc. for use on labeled fire doors.

7970/7970DPS

Suggested Specification

Closers for ___________ interior (and) exterior doors shall be full rack-and-pinion type with cast aluminum alloy shell. Closer shall be concealed in 4" (102mm) high frame header. The slide track shall be concealed in the top rail of the door. Closer shall be provided with a fire-blocking door liner to permit installation in 20 minute fire door assemblies. Closer arm and slide track shall be completely concealed when the door is closed. Hydraulic fluid shall be non-gumming, and non-freezing. Closer shall have (four) (five) non-critical valves, hex-key-operated, to independently regulate closing speed, latch speed, backcheck position and backcheck cushioning and delayed action closing. Closer shall have power adjustment to permit a 50% increase in power over the minimum closing force for any size. Closer shall conform with Accessibility Code Specifications. Hold-open mechanism shall be capable of disengagement when holding function is not required. Hold-Open mechanism shall be fully adjustable as to degrees of door opening and shall release with a manual pressure on the edge of the door in the direction of close. Slide track shall have built-in cushioning shock absorber mechanism. Closer to be Norton 7900 Series with 790 Fire Block. Closer to be Norton 7900BFI 7900 BFE.

7970 DPS

Closer to have a door position switch to per indication of "Door Open"/"Door Closed condition."

Available Finishes

Sprayed Finishes - All Norton Series 7570/ 7770 Door Closers and Accessories are available in the following sprayed finishes. Order sprayed finishes by Norton Symbol.

* Available at extra cost. Beige in color. Closers can be ordered prime coated only. i.e. (SRI), or prime coated with finish coat, i.e. (SRI) x (DB).