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English Author: D&D Hardware Publish Time: 2023-08-28 Origin: D&D Hardware
ANSI 156.4 is the American National Standard Institute (ANSI)
Item | ANSI 156.4 |
Cycle-test | Without Buffer Function |
Grade 1-2,000,000 | |
Grade 2-1,000,000 | |
Grade 3-500,000 | |
Buffer Function | |
Grade 1-1,500,000 | |
Grade 2-750,000 | |
Grade 3-500,000 | |
Fire Test | Pass UL 10 C 3 hours fire test |
Anti-corrosion | Salt Spray Test 200 hours |
1. SCOPE
1.1 This Standard includes specifications for different types of door closers, including surface mounted closers, concealed closers in the door, overhead concealed closers, and concealed floor closers. Pivots for floor closers are also included. The criteria for conformance include tests for cycle, operational, closing force, and finish. Included are also optional tests which shall be specified separately.
1.2 Tests in this Standard are conducted in laboratory conditions with neutral air pressure, at temperatures ranging from 60 to 85 degrees F. However, actual results may differ due to factors such as installation, maintenance, and environmental conditions. Actual closer performance is affected by fluctuating ambient conditions such as wind and pressure differentials, consult factory for recommendations.
1.3ﾠUse on Fire DoorsﾠA door closer used on labeled fire door assemblies shall be listed or labeled by a nationally recognized independent testing laboratory, and be subject to a periodic in-plant follow-up service. Before rephrase: Consult the authority having jurisdiction for the appropriate fire test requirements.
After rephrase: Seek guidance from the authorized body to determine the suitable fire test criteria.
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