Which problem will be appeared when using fire door

Normally when a fire occurred, fire doors will contain the fire in a fixed area and defend it from spreading out and provide isolation from smoking. But if a fire door is not under good maintained or in good condition, the protection may lose effectiveness. This article will present some problems that may happened in a fire door, and owners should check the doors condition immediately after sawing this article.

Using object to support the door keep opening

This is a common scenario happening in lot of places, use wood or bricks or other objects jammed into the joints between the door frame and the door, or in the path of the door's movement, to block a fire door from self-closing. Doing this for a long period of time will result in the door becoming less airtight and may lose the ability of self-closing, as this may harm the hinge and door closer. When a fire comes there is not enough sealing to stop the spread of the fire.

Hinge problem, crevice or resistance

The Hinge is a very important part of a fire door. They are responsible for hanging the door leaf and maintaining adequate movement. The hinge is also partly responsible for adjusting the gap between the door frame and the door leaf. Typically, the gap needs to be less than 3mm, if it is more than this it may be necessary to check that the hinges have been fitted correctly or are damaged. The hinges also need to be checked for damage if the door does not move smoothly and makes noise.

Incorrect smoke seal installation

Smoke seals are also an essential accessory for fire doors. This is because metal to metal cannot form a tight and effective seal. By relying on the sealing effect of smoke seal, fire doors are able to keep out smoke and small insects. Aging of the seal will cause it to become brittle itself and prone to breakage, affecting the sealing effect. This can also make the door sound louder when it is closed.

Vision Panel

There shouldn't be a gap between the window frame and the glass, try pushing on your glass, if it is unstable, it means that your glass isn't fitted or fixed correctly, which can lead to problems with the sealing of the whole door and smoke as well as heat can leak through the gaps. Similarly, the glass can develop cracks or breaks, check them every so often to make sure there are no problems.

Lock sets and Panic device

Locks are also part of the overall composition of the fire door, damage to the locks can lead to gaps in the fire door and cannot be closed properly, and in more serious cases will affect the passage. Problems with the lock are usually the most obvious, as the lock has to be operated every time you pass through. Also try checking that the screws on the lock are intact, that the lock switches properly and that the latch is intact.

Shanghai Xunzhong Industry Co., Ltd. (XZIC) have a history of more than 15 years in producing and selling fire doors. We understand the fire safety standards of different fire doors and can give professional advice to help customers choose suitable fire doors and keep them maintenance. We product high quality UL fire rated doors, we have wooden fire door certification for 20-90 minutes rated time, and up to 3 hours for steel fire doors. All products are customized. We are welcome to ask any questions and help you to push your projects. Check our website for more information and our products: www.ulfiredoormfg.com

Contact by mail: [email protected]