These doors have ratings based on how long they are proven to withstand a fire.
Roll up fire door fusible link.
Fusible link for added safety separates at 165 f 74 c to automatically close the door in case of fire.
You can order cookson steel roll up doors with fire ratings of 45 minutes 90 minutes three hours or four hours.
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.
1 fusible link 1 7 16 long x 9 16 wide approx.
75 hour approved for roll up storm shutters in corridor or room partition opening not exceeding 152 sq.
A standard roll up door chain hoist will not work with the fire door link system.
A fire rated door or counter shutter is a barrier designed to prevent flames or hazardous smoke from spreading during a fire.
Viscous governor technology controls rate of door descent during a fire while reducing noise and vibration for quieter door operation.
Integral frame sill fire doors models 660 662 integral frame counter fire doors models 660 662 provide a handsome finished appearance for a variety of applications including food service counters available for opening sizes up to 9 5 x 55 2870 mm x 1346 mm these doors carry a 1 1 2 hour ul class b label and are factory assembled as a complete unit with fully welded frames.
Either operation will still require fusible links and the chain or motor system will have to interact with the fusible link system.
Fire rated door 631 mounting chart slat selection and finishes fire door slats are available in curved or flat profile in either galvanized steel.
1 5 hour approved for shutter doors in vertical shaft 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.
3 and 4 hour approved fusible link shutters for doors in dividing fire walls with openings not exceeding 152 sq.
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.
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.
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.
