A156_8

American National Standard for Door Controls - Overhead Stops and Holders

This Standard establishes requirements for Overhead Door Stops and Holders, and includes performance tests covering operational, cyclical, strength and finish criteria.

The following tests: Cycle, Force, and Finish tests (Salt Spray and Humidity tests) are used to meet the grade for this Standard. Additionally, definitions, illustrations, performance

requirements, general information in reference to typical overhead stops, and holders as well as the explanation of the numbering system are included.

Sample test values performed under laboratory conditions: Please note that the following are partial descriptions used for illustration purposes only. See full Standard for all tests, and requirements.

Tests Grade 1 Grade 2 Grade 3

Cycle 250,000 100,000 50,000 Force 300 Ibf (1334 N) 200 Ibf (0 N) 100 Ibf (445 N) Salt Spray 48 hours 24 hours 12 hours

Sample illustration: Type 3 Overhead Surface Mounted Jointed Arm Holder: For single acting entrance, vestibule and interior doors opening to 110 degrees. Stop and shock absorber effective at all times. Hold open and release by push and pull on door. Control is capable of being set in inactive position. Performance tests required: 2.2.2, 2.3.1 and 3. C03511 C03512

Type 3 Overhead Surface Mounted Jointed Arm Stop: Same as C03511 and C03512 except without hold open function. Performance tests required: 2.2.5, 2.3.1 and 3.

C031 C032