Hebei Hong'an Fire Door Co., Ltd. is one of the most reliable manufacturers and suppliers of flexible fire‑resistant rolling shutter in China. If you're going to buy durable flexible fire‑resistant rolling shutter made in China, welcome to get free sample from our factory. All customized products are with high quality and low price.
Key Points of Inorganic‑fabric Fire‑resistant Rolling Shutter
An inorganic‑fabric fire‑resistant rolling shutter is not merely "a fire‑proof fabric plus a motor", but a complete fire separation system. Every component, including curtain material, rolling‑shaft structure, thermal‑sensitive release device, linkage logic and housing fire‑stopping, determines its performance in fire conditions. Many projects fail fire‑safety acceptance not due to defective products, but improper selection, cut‑down configurations, poor installation & fire‑stopping work, and incorrect linkage‑logic settings. Engineering selection shall strictly comply with
Key Quality Control Points for Curtain Fabric
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Key Quality Control Points for Curtain Fabric
Qualified inorganic‑fabric curtain produces no molten drips or heavy toxic smoke under fire. Firm inter‑layer bonding prevents delamination and cracking after repeated rolling. Splicing seams and pressed edges are vulnerable to fire penetration; splicing shall meet requirements instead of simple stitched joint. Inferior glass‑fiber felt curtains tend to powder and shed particles, greatly reducing fire resistance duration.
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Linkage Control Logic: One‑step & Two‑step Descent
Non‑evacuation passages (garages, equipment areas): One‑step descent. The shutter falls fully upon fire alarm for immediate fire separation. ‑Evacuation passages (mall aisles): Two‑step descent. It first descends to 1.8 m for evacuation, then falls fully after delay. Fitted with 68 ℃ thermal‑fuse release device for forced full descent when triggered. Common site defect: Wrong one‑step‑descent setting for evacuation passages blocks escape and results in acceptance failure.
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Fire‑penetration Prevention Stopping
Gaps around rolling‑shaft housing and guide‑rail walls shall be tightly filled with fire‑stopping materials. Many projects only focus on curtain fabric while neglecting housing gaps, allowing fire and smoke to cross fire compartments and rendering the shutter completely ineffective.
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