International Door Closers 850 Series - 852/853/855 Standard Surface Door Closer, Regular Arm

International Door Closers 850 Series - 852/853/855 Standard Surface Door Closer, Regular Arm

• Series 880 has adjustable Back-Check function controlled by a separate regulating valve, adjustable after installation.
• Underwriters’ Laboratories Inc. Listed.
• Range of sizes:
• Standard: 851, 852, 853, 854 and 855
• Back-Check: 883, 884 and 885
• Two Adjustment Valves: Closing and Latching speeds controlled by separate regulating valves, adjustable after installation.
• Non-handed for standard, top jamb or parallel arm installation.
• Available with regular, hold-open or fusible link hold open arms.
• Regular arms are equipped with a 15% (+)(-) 7½% power adjustment bracket.
• Hold-open arms are adjustable for holding from 90° to 180°.
• Rack and pinion mechanism contained in a high tensile precision cast aluminum housing assures the highest quality.
• Stable hydraulic door check fluid for any climatic operation and constant lubrication.
• Narrow design permits installation on most modern glass and aluminum doors without adaptors.