Fire Door And Shutter Fusible Links

Every rolling steel fire door has to come with fusible links to self close the door.

Fire door and shutter fusible links.

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. Style 1 5 links are for use on fire doors windows and lids. Fire sentinel time delay release device firelite vision lites smoke detectors horns.

Use links in straight pull applications only. Additional safety and protection features are available including. 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.

Style 6 and 7 links are often used on fire doors windows hatches dampers and blowers. 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 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. Fireking model 631.

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. Why choose the industrial fire roller shutter with fusible link. Fusible links melt and activate the door system at a specific temperature as default 64 c. Style 9 links are good for range hood applications.

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. The industrial fire shutters use single 240v or 3 phase 415v inline industrial motors which allows shutters up to 12m wide. A fusible link looks like the picture below.