1681-689 Door Closer by Norton
The 1600BC/1601 Series Door Closers are designed to fit almost any application and are the choice of engineers worldwide. Ideal for use with aluminum storefront doors and frames, these closers are have a history or proven quality and tradition.
The Norton 1601 Series Closers for interior and exterior doors shall be full rack-and-pinion type with cast aluminum alloy shell. Closers shall be surface mounted and shall project no more than 2-7/8" from the surface of the door. Closers shall be non-handed to permit installation on doors of either hand. Closer fluid shall contain lubicity and anti-oxidation agents. Closer fluid shall maintain stable viscosity to allow door closer to perform in tempatures 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 4) or (3 through 6). Closers shall have two non-critical valves, hex key adjusted, to independently regulate sweep and latch speed. Closers shall have adjustable backcheck cushioning controlled by a hex key adjusted valve.
Regular Low-profile arms have a reduced height elbow joint and a straight main arm. This enables the door closer to be installed in less vertical space. Non-hold open function only.
Door Closer Power Options:
1681: The 1681 Series are Multi-Sized Door Closers that are adjustable through the power range of Sizes 3 through 6. Maximum Door Size: Interior Door 32" - 48"; Exterior Door 30" - 48" Wide.
Features and Benefits:
- Exceeds 10 million cycles (witnessed and verified by UL).
- Staked valves.
- Rack-and-pinion design.
- Cast aluminum body.
- 2-7/8" (73mm) projection.
- 1-3/8" (35mm) diameter piston.
- 5/8" (16mm) diameter pinion journals.
- Standard, separate and independent, latch, sweep and backcheck intensity valves.
- All standard arm applications allow doors to swing 180°, conditions permitting.
- Available in Aluminum (689) finish.
Aluminum Alloy Housing: Closer bodies are constructed of a special aluminum alloy, carefully selected to accommodate interaction with steel components and operating conditions.
Rack & Pinion Operation: Provides a smooth constant control of the door through its full opening and closing cycle. 180-Degree door swing can be achieved when door, frame, hardware and arm function do not limit door swing.
Non-handed: 1681 closers are non-handed and can be installed on either right- or left-hand swing doors. Pinion shafts extend vertically through the closer body in both directions.
Sweep Speed Control Valve: Allows adjustments of door speed from the door's full position down to approximately 10-degrees from the closed position.
Latch Speed Control Valve: Allows adjustments of door speed from approximately 10-degrees down to the door's fully closed position.
Adjustable Backcheck Cushion Valve: Provides control of the door in the opening cycle, beginning at approximately 75-degrees of door opening. It slows/cushions the door opening, when the door is forcibly opened beyond its pre-adjusted opening speed limits.
Door Closer Cover: All Norton 1600 Series Closers come without a cover. See "Related Items" above for 1600 Series Cover.