Fire Door And Shutter Fusible Links

A fusible link looks like the picture below.

Fire door and shutter fusible links.

Additional safety and protection features are available including. Every rolling steel fire door has to come with fusible links to self close the door. Why choose the industrial fire roller shutter with fusible link. Provided with fusible links that automatically release to close the door at 165 f the shutter can also be triggered by smoke and heat detectors a building s alarm system or lm21 fail safe release devices.

All firecurtain counter shutters comply with ul c ul fm and csfm requirements for 3 hour 1 1 2 hour or hour fire ratings. The fireking model 631 rolling fire rated service door offers superior protection wherever a small ul listed fire door is required. The fusible link will soften in the heat of a fire and when the cable eventually parts the tension on the cable releases and the lever moves on the closing device allowing the shutter to close. Fireking model 631.

The industrial fire shutters are designed for larger openings up to 12m wide and are tested to stop the spread of fire from 1 4 hours. Fusible links are located above the rolling door and on the sides. Style 8 links are commonly used on fire doors smoke and heat vents and ducts. Fusible links melt and activate the door system at a specific temperature as default 64 c.

In some instances a fire marshall will want to have the fusible links as close as possible to the ceiling or on both sides of the opening. 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. Fire rated service door model 631 is a smaller fire door with ul ulc ratings. Style 9 links are good for range hood applications.

Use links in straight pull applications only. Style 6 and 7 links are often used on fire doors windows hatches dampers and blowers. S hooks and sash chain are the other parts of the drop system that are use in conjunction with the fusible links and we carry both of those components as well.