UNIJ8501 512-638 691 Norton Surface Closers

The 8000 Series Door Closers offer the ideal combination of appearance, reliability and durability in today’s market. With features such as staked valves, precise valve adjustment and a complete range of arm and cover options, this closer can meet virtually any application challenge. The 8000 Series Door Closers exceed 10 million cycles, have a rack and pinion design with a cast aluminum body and are non-handed. A slim-line plastic cover is standard with the 8301 closer and a full plastic cover is standard with the 8501 closer.

  • Closers for interior and exterior doors shall be full rack-and-pinion type withcast aluminum alloy shell.
  • Closers shall be surface mounted and shall project nomore than 2-1/8″ from the surface of the door with standard cover.
  • Closers shallbe non-handed to permit installation on doors of either hand. Closer fluid shallcontain lubricity and anti-oxidation agents.
  • Closer fluid shall maintain stableviscosity to allow door closer to perform in temperatures ranging from extremely high to as low as -40F.
  • Closers shallhave multi-size spring power adjustment to permit setting of spring from size 1through size 6.
  • Closers shall have two non-critical valves, hex key adjusted, toindependently regulate sweep speed and latch speed.
  • Closers shall have adjustable backcheck intensity controlled by ahex key adjusted valve.
  • [Closers shall have adjustable delayed action closing controlled by a hex key adjustable valve.]
  • Regular arm and topjamb closers shall have a non-hold open shoe permitting 15% ( + or 7-1/2% ) power adjustment.

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