Norton Series 1700 Door Closers - Page 3

FEATURES / SPECIFICATIONS

Features

Tri-Style Installation: Standard closer packaged with all necessary hardware for either regular arm, top jamb or parallel arm installation.

Non-Handed: Pinion shaft extends vertically through the closer body in both directions. This permits the closer to be installed on either hand of door. A cap conceals the closer shaft not in use.

Aluminum Alloy Shell: closer body is a special aluminum alloy, carefully selected to accommodate closer characteristics and operating conditions.

Rack & Pinion Operation: provides a smooth transmission of power for control of the door through its full opening and closing cycle.

Adjustable Sweep Speed: an independent regulating valve with a hex drive screw; permits adjustment of the closing speed.

Adjustable Latch Speed: an independent regulating valve with a hex drive screw; permits adjustment of the door speed for approximately the last 5° of the closing cycle.

Non-Critical Valves: all control valves for sweep speed, latch speed and optional backcheck cushioning are non-critical.

Power Adjustment Shoe: closer power can be increased by 15% by rotating the forearm and mounting shoe 180° at its mounting point on the door or frame.

Optional Features

Adjustable Backcheck Cushioning: an independent regulating valve with a hex drive screw; provides an adjustable hydraulic cushioning to the door opening speed toward the end of the opening cycle. Order Series 1700BC.

Molded Full Cover: Fabricated of high-impact U.L. listed material for covering the entire closer. Molded in catches provide a secure snap-on installation. This cover is nonhanded. Dual notches with an insert permit proper handling during installation. Order Series 1700 x COV.

Available Finishes

Norton Series 1700 Door Closers are available in the following sprayed finishes. Order sprayed finishes by the Norton Symbol.

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

Suggested Specifications

Closers for ___________ interior doors shall be full rack-and-pinion type with cast aluminum alloy shell. Closer shall be non-handed to permit installation on either hand of door. Closer to be supplied with standard shoe and soffit plate to allow regular arm, parallel arm or top jamb mounting. Hydraulic fluid to be nongumming and non-freezing. Closer to have non-critical valves to independently regulate sweep speed (and) latch speed (and backcheck cushioning). The forearm shoe shall permit a 15% power adjustment by rotating the forearm and shoe 180° at the door or frame. (Closer shall be enclosed in a molded full cover.) Closer to be Norton Series 1700/1700 x COV, Series 1700BC/1700BC x COV.