PRODUCTS - Retrofit Existing Steel Fire Doors

Introduction | The Problems With Conventional Doors  

Tested and Approved Installation | Significant Advantages to Building Owners

 

Easier Testing and Automatically Resets

The Auto-Set® Retrofit Option eliminates testing difficulties and improper resetting by eliminating all the components that typically fail on fire doors and incorporating them into the Fire Door Operator. The Fire Door Operator is highly durable, automatically resets itself, and has been tested by Factory Mutual for 50,000 operational cycles and 525 consecutive drop tests. Conventional fire doors are only tested for 7,500 operational cycles and 25 drop tests.

 

News Release

"A new type of rolling steel fire door recently receiving approval from the Factory Mutual Research Corporation features a design that will improve the reliability . . ."

 

FMRC APPROVES ROLLING STEEL FIRE DOOR FEATURING SIMPLE INSTALLATION, TESTING AND RESETTING . . .

Rolling steel fire doors serve an important purpose: they protect openings in fire walls built to separate sections of a building and prevent the passage of flame and hot gases. However, results of a study show that nearly 20 percent of installed rolling steel fire doors could fail to operate in an emergency. The main culprits: improper installation, misapplied spring tension and lack of proper door maintenance.

 

A new type of rolling steel fire door recently receiving approval from the Factory Mutual Research Corporation features a design that will improve the reliability of these important loss control devices. The door, Model FSFD manufactured by McKeon Rolling Steel Door Company, Inc., of Brooklyn, N.Y., features a novel innovation to the automatic closing device.

 

What makes McKeon door different is that it utilizes an electrical, constantly engaged, hold-open brake as the method of automatic closure control, rather than a convention spring tensioning device. As long as electricity is supplied to the unit, the brake, located in the gearbox assembly, remains set and prevents the curtain from closing.

Upon a loss or interruption of power or the activation of a fusible link, the brake retracts, freeing the gear train and allowing the curtain to close. The door's rate of descent is controlled by a quiet and efficient centrifugal governor unlike that found on most fire doors.

 

"The use of an electrically operated, automatic device, rather than the typical counterbalanced spring tension device, results in a rolling steel fire door that is simple to install, maintain, test and reset." said John Rennie, Vice President of FMRC's Approvals Division. "Approval and use of this door/assembly is eventually expected to reduce significantly the percentage of rolling steel fire door trip test failures."

 

The assembly is fire rated up to and including four hours for wall openings up to 144 sq. ft. Oversized doors are also available.

 

FMRC's Approvals Division is a leading resource for manufacturers seeking third-party certification of their products in response to the demands of customers and regulatory agencies. FMRC's Approval of a product to specific standards provides the end user and manufacturer reassurance that the product's performance claims have been verified.