75 hour approved for roll up storm shutters in corridor or room partition opening not exceeding 152 sq.
Roll up fire door fusible link.
3 and 4 hour approved fusible link shutters for doors in dividing fire walls with openings not exceeding 152 sq.
Our roll up doors and safety gates are also available worldwide so you can take advantage of the cookson door difference no matter where you are.
Fire rated door 631 mounting chart slat selection and finishes fire door slats are available in curved or flat profile in either galvanized steel.
2 fusible link 2 5 8 long x 7 8 wide approx.
1 fusible link 1 7 16 long x 9 16 wide approx.
A standard roll up door chain hoist will not work with the fire door link system.
1 5 hour approved for shutter doors in vertical shaft openings not exceeding 152 sq.
Galvanized slats are finished with a rust inhibitive roll coating process that incorporates baked on prime paint and a baked on polyester top coat of gray tan white or brown.
Mechanical auto resettable hoist non motorized enables easy drop test and reset of fire door in seconds.
Fusible link for added safety separates at 165 f 74 c to automatically close the door in case of fire.
These doors have ratings based on how long they are proven to withstand a fire.
You can order cookson steel roll up doors with fire ratings of 45 minutes 90 minutes three hours or four hours.
Viscous governor technology controls rate of door descent during a fire while reducing noise and vibration for quieter door operation.
To better serve you we provide many tools that will make your door selection process more manageable including current door codes and listings downloadable rolling door bim objects and more.
Fusible links are an intragal component of any fire door system be it a rolling fire door sliding fire door counter shutter type fire door window shutter and any other fire door system.
Fire rated rolling doors can be made push up operation chain operated and motor operated.
Fusible link assembly conventional fire door 26 fusible link assembly no spring release fire door 28 fusible link assembly through wall conduit 29 section 10 lintel seal 30 section 11 drop test 33 section 12 hood support installation 34 section 13 hood fascia and covers 36 hood and fascia 36 hood splice 37.