Technical Standards by YK Fire Rated Door Manufacturer As a professional steel fire door manufacturer, YK Door Industry Co., Ltd. ensures that all custom steel fireproof doors supplied for industrial applications adhere to strict national and project-specific technical standards. The following outlines the key specifications required for compliance and performance in demanding environments. Compliance with […]
Tag Archives: Fire door project in Yunnan Province
Fire Door Project in Yunnan Province: How YK Door Industry Delivers Code-Compliant Safety
Why Yunnan Province Needs Project-Grade Fire Doors
Yunnan’s geography creates unusual risks for buildings. High altitude UV, monsoon humidity, and seismic activity push doors, frames, and hardware to their limits. Hotels in Lijiang, hospitals in Dali, and logistics parks around Kunming all need fire doors that keep rating in real conditions. Projects also face national code checks and local fire brigade inspections. A supplier must solve climate, code, and installation together—or risk costly rework.
YK Door Industry approaches each Yunnan project with this reality. We design for temperature swing, moisture, and frequent use. We document every step so owners pass acceptance the first time.
Codes and Ratings You Must Meet in Yunnan
A successful fire door project in Yunnan Province aligns to China’s core framework:
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CCC (3C) compulsory certification for fire products.
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GB 12955 – Fire-resisting doorsets as the technical backbone.
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Class A / B / C mapping commonly used on drawings:
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Class A (甲级) ≥ 1.5 h (≈ 90 min)
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Class B (乙级) ≥ 1.0 h (≈ 60 min)
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Class C (丙级) ≥ 0.5 h (≈ 30 min)
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Many public projects request smoke control performance and door closer force checks. Final acceptance requires traceable labels, test reports, and installation conformity.
Project Overview: YK Door in a Kunming Multi-Building Campus (Case Profile)
Scope. Three new buildings: a cold-chain warehouse, an outpatient clinic, and a retail block.
Deliverables. 318 sets of steel and timber fire doors, plus two sliding fire shutters for loading bays.
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Warehouse (EI90 / Class A)
Steel swing doors with insulated cores. Anti-condensation finishes for chilled zones. Heated perimeter gaskets at key openings to prevent seal freeze during night operations. -
Clinic (EI60 / Class B)
Narrow-profile glass fire doors in corridors for clear sight lines. Soft-close closers and quiet latches to protect patient comfort. Smoke seals specified for pressurized stair cores. -
Retail Block (EI60 & EI90 mix)
Double-leaf steel doors at back-of-house with hold-open devices tied to the fire alarm. Decorative powder coats at public areas to match brand palettes.
Outcome. The campus passed fire brigade acceptance on first inspection. Maintenance staff received training and checklists, reducing unplanned downtime during the first six months.
Engineering for Yunnan: Problems We Solve Upfront
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Humidity & Rain: Stainless or powder-coated skins, sealed edges, and corrosion-resistant frames.
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UV & Temperature Swing: UV-stable coatings and hardware greases tested for wide ranges.
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Seismic Considerations: Anchors and frame fixings sized for cracked-cone behavior; clearances that keep leaf swing free after minor drift.
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High Traffic: Heavy-duty hinges, multi-axis closers, and kick plates where carts impact doors.
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Cold-Chain Interfaces: Thermal breaks and heated gaskets keep rating and stop frost that can hold a leaf open.
The YK Door Method for Yunnan Projects
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Drawings & Submittals – Door schedules with Class mapping, hardware sets, and 3C certificates.
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Mock-Up & First Article – One typical and one high-risk opening (e.g., cold room) for early stakeholder sign-off.
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Site Coordination – Tolerance checks for jamb plumb, anchor layout, and floor level.
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Commissioning – Closer speed, latch engagement, hold-open release tests with the alarm contractor.
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Handover – Serialized labels, maintenance kits, and training in Mandarin and English.
Material Choices That Work in Yunnan
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Steel Fire Doors (Class A/B): For warehouses, BOH corridors, and stair cores. Powder coat or stainless cladding for moisture control.
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Timber Fire Doors (Class B/C): For hotel and office interiors. Moisture-resistant cores to reduce warping.
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Glass Fire Doors (Class B): For clinics and retail visibility. Framing designed for smoke control and easy cleaning.
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Sliding Fire Shutters: For wide logistics openings. Interlocked with detectors and manual release.
Procurement Tips for Owners and EPC Teams
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Ask for original 3C certificates tied to each model and size range.
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Match rating to risk, not just budget. Use Class A at stair cores and high-load areas.
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Plan lead time for custom colors, stainless skins, or heated gaskets.
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Include installation QA in the contract: plumb/level limits, gap checks, closer tests.
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Secure spare parts kits for hinges, seals, and closers before handover.
YK Door Industry: Why Partners Choose Us in Yunnan
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Localized engineering for altitude, humidity, and seismic anchors.
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Full documentation for smooth acceptance.
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Rapid after-sales with labeled spares and hotline support.
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Cost control without sacrificing rating or durability.
Summary Table — Fire Door Project in Yunnan Province
| Project Area | Door Type & Rating | Key Features | Reason for Choice | Result |
|---|---|---|---|---|
| Cold-chain warehouse | Steel, Class A / EI90 | Insulated core, heated gaskets, anti-condensation finish | Prevent frost, keep seal integrity | Stable operation through night shifts |
| Clinic corridors | Glass fire doors, Class B / EI60 | Narrow frames, smoke seals, soft-close closers | Visibility + smoke control for patients | Quiet operation, easy inspection pass |
| Retail BOH exits | Steel double-leaf, EI60–EI90 | Hold-open linked to FA, heavy hinges | Frequent cart traffic, safe egress | Reliable closing under load |
| Stair cores | Steel, Class A | High-force closers, kick plates | Life safety priority, high cycles | Strong latching, no rebound |
| Loading bays | Sliding fire shutters | Interlock with detectors, manual release | Large openings, logistics flow | Fast isolation during drill |
FAQ for Dealers, Procurement Managers, and Contractors
Q1 (Dealer): How do I explain Class A/B/C to clients in Yunnan?
Use the simple map: Class A ≈ 90 min, Class B ≈ 60 min, Class C ≈ 30 min. Match A to stairs and high-risk zones, B to corridors and most rooms, C to low-risk areas. YK Door provides easy charts for sales meetings.
Q2 (Procurement): What documents do inspectors usually ask for?
3C certificates, GB 12955 test reports, door schedules, and installation records. We hand over a labeled dossier per floor and per door set.
Q3 (Contractor): What site mistakes cause failed acceptance?
Out-of-plumb frames, oversized gaps, weak anchoring, and closers set too fast. Our team trains your crew, sets pass/fail tolerances, and attends pre-inspection walks.
Q4 (Procurement): Can one door serve cold-room and fire needs?
Yes, if designed with thermal breaks, proper seals, and verified rating. We use heated gaskets and insulated cores that keep both temperature and rating.
Q5 (Dealer/Contractor): How do we keep doors performing after handover?
Follow a simple plan: monthly closer checks, quarterly hinge lubrication, seal inspection before the rainy season. We supply checklists and spare kits.
Conclusion
Delivering a fire door project in Yunnan Province requires more than certified products. It needs climate-aware engineering, precise installation, and clean documentation. YK Door Industry combines all three so owners pass acceptance on the first try and keep people safe over the building’s life.