Fire Rated Doors: Specifications

MATERIAL:

Door Frames and shutters are made from zero-sprangle galvanized steel.

DOOR LEAVES:

These are constructed from 1.0mm thick galvanized steel sheet, formed to provide a 48mm thick, fully flush, double-skin door shell with seamless weldied joints all around. Internal reinforcements ensure better fire rating. The door incorporates a honeycomb structure with reinforcement, depending on the degree of tested fire rating.

DOOR FRAMES:

These are produced from 1.6mm galvanized steel sheet, formed to single rebate profile of size 100mm x 57mm (+/- 0.3mm), with a maximum bending radius of 1.4mm.

The door frames can be built into the brick or block walls using corrugated “TEE” Anchors not welded to the frame (First fix). Frames may also be fixed on plastered openings with the help of metallic expansion shield with butt joints for bolted assembly at site.

VISION GLASS:

Fire Rated Vision Glass with 6mm thick clear glass can be provided for a maximum of 2 hours fire rating. Rectangular vision glass can be provided in standard size of 200 x 300mm and sizes as per customer specifications as required wherever possible, subject to minimal standard construction norms.

FINISH:

The Door frames and door shutters are Zinc Phosphated with epoxy primer and finished with pure polyester powder coating.

MATERIAL:

Door Frames and shutters are made from zero-sprangle galvanized steel.

DOOR FITTINGS

HINGES :

Stainless Steel Ball Bearing Butt Hinges of 3mm thickness are fixed flush to the Frame and Shutter.

LOCK:

Mortise Sash Lock with Lever Handles, Mortise Dead Bolt, Mortise Latch and Panic Devices can be provided as per required specifications.

FLUSH BOLTS (DOUBLE DOOR):

Concealed, extended lever action flush bolts are provided on the top of the door to the leading sill edge.

DOOR CLOSERS:

A large variety of Door Closers can be fitted.

OPTIONS:

Electromagnetic Hold open device, Door Coordinator, Smoke Seals for Air Tightness, Automatic Door Bottoms etc., can be provided, if required.

Specification for UL Listed door

MATERIAL:

Door Frames and Leaves are made from galvanized steel.

DOOR LEAVES:

These are constructed from 1.5mm thick galvanized steel sheet, formed to provide 55mm- thick fully flush, double skin door shell with seamless welding joint all around. Internal reinforcements ensure rigidity. The internal construction of the door is specially designed so that Rockwool infill material is sandwiched between two skins of door on both sides with reinforcement all around.

DOOR FRAMES:

These are produced from 2mm thick galvanized iron sheet, formed to double rebate profile of size 143mm x 57mm (+/- 0.3mm), with a maximum bending radius of 1.4mm. The door frames can be fixed to the brick or block walls using Anchors not welded to the frame (First fix).

FINISH:

The door frames and door shutters are Powder coated with UV resistant PP powder.

DOOR FITTINGS

DORMA HINGES JC620 (UL LISTED):

Stainless Steel Ball Bearing Butt Hinges 3mm Thick are Fixed Flush to the frame and shutter.

DORMA MORTISE LOCK DL1000 (UL LISTED):

Mortise Sash Lock with Lever Handles will be provided as required.

DORMA FLUSH BOLTS 3101 FOR DOUBLE DOOR (UL LISTED):

Concealed extended lever action flush bolts are provided on the top and bottom of the door to the leading stile edge.

DOOR CLOSERS (UL LISTED):

Doors can be fitted with a large variety of Door Closures.