Fire Door Purchase Considerations

- Aug 21, 2018 -

Steel fire doors and wooden fire doors can be divided into Class A, Class B and Class C fire doors according to the fire resistance limit. The fire resistance requirements of the former are 72min, 54min and 36min respectively, and the fire resistance requirements of the latter are 72min. 54min and 36min, and the wood used to make the wooden fire door needs to be dried and flame retarded, and its moisture content should not exceed 12%.

In addition, the hardware components used for wooden fire doors must be fireproof hardware accessories, mainly including: fire hinges (hinge), fireproof bolts, fire door locks, fire sequencers and fire door closers.

Note 1: Check the appearance

The high-quality steel fire door is welded firmly, the welding points are evenly distributed; the outer surface is smooth and smooth; the product mark, quality inspection qualified mark and quality certification (acceptance) qualified mark should be included in the specified position. Unqualified products appear to be weakly welded, uneven distribution of solder joints; uneven coating; no product mark, quality inspection mark and quality certification (approval) mark at the specified position.

The appearance of qualified wooden fire doors should be complete, no damage, clean surface, no shading, burrs and hammer marks; cutting angles and seams should be tight and flat; product marks, quality inspection marks and quality certification should be provided at the specified positions. (Approved) Qualified Mark. Unqualified products are incomplete, damaged, have no clean surface, have scratches, burrs and hammer marks; cut corners, seams are not tight and flat; no product mark, quality inspection mark and quality certification in the specified position ( Approved) a mark of conformity.

Note 2: Pair numbers

The dimensions of the qualified product shall be ≤ the external dimensions in the sample description. The thickness of the door leaf shall be ≥ the thickness of the door leaf in the sample description. The width of the side wall of the door frame shall be ≥ the width of the side wall of the door frame in the sample description. The outer dimensions of the fireproof glass shall be ≤ in the sample description. The size of the fireproof glass, the thickness of the fireproof glass should be ≥ the thickness of the fireproof glass in the sample description.

The dimensions of the unqualified product shall be > the dimensions of the sample description, the thickness of the door leaf shall be < the thickness of the door leaf in the sample description, the width of the side wall of the door frame shall be < the width of the side wall of the door frame in the sample description, the outer dimensions of the fireproof glass shall be > in the sample description The size of the fireproof glass, the thickness of the fireproof glass shall be <fireproof glass in the sample description.

Note 3: Look at the seal

Qualified steel fire doors and wooden fire doors shall be provided with fireproof sealing strips. The sealing strips shall be straight and without arching, and have qualified inspection reports issued by national testing institutions; unqualified products are not provided with fireproof sealing strips, or The sealing strip is not straight and arched, and there is no qualified inspection report issued by the national testing agency.


Related News

Related Products

  • Soundproofing A Door Frame
  • Best Doors For Sound Reduction
  • Sound Insulated Interior Doors
  • Soundproof Exterior Door
  • Mirror Steel Entrance Door with Upholstered Leather
  • Embossing Metal Turkish Door Sound Proofing