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Stainless Steel Universal Gravity Door Selector For Double Leaf Fire Door
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Satin Stainless
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Matt Black
DR‑005 Stainless‑Steel Universal Gravity Door Selector For Double‑Leaf Fire Door
DR‑005 stainless‑steel universal gravity door selector (door coordinator) for double‑leaf fire door assemblies from WINGTEC. Constructed from durable SUS304 stainless‑steel, optional SUS316 material for coastal salt‑air anti‑corrosion projects. Gravity‑powered mechanical sequencing hardware, soffit surface‑mount installation. Effectively holds the active leaf open until the inactive leaf is fully closed, prevents door collision, mis‑latching and smoke‑penetrating gaps on fire‑rated paired double‑door‑sets. Fully non‑handed reversible structure, works cooperatively with standard surface‑mount door closers. Multiple premium surface finish selections available. Suitable for wooden, metal, steel and fire‑rated double‑leaf interior & exterior door assemblies. Full‑set installation mounting hardware included. Monthly production capacity reaches 80,000 units for B2B wholesale architectural double‑door hardware tender projects.
| Specification | Parameter |
|---|---|
| Product Type | SUS304 Universal Gravity‑Operated Soffit‑Mount Door Selector (Door Coordinator) For Double‑Leaf Fire‑Rated Door‑Sets |
| Operation | Gravity mechanical sequencing, keeps active leaf open until inactive leaf fully closes, non‑handed reversible, compatible with paired door‑closer hardware |
| Material | SUS304 Stainless‑Steel body; SUS316 optional for coastal salt‑air environment, wear‑resistant nylon roller assembly |
| Core Functions | Enforce proper double‑door closing sequence, eliminate door‑collision & mis‑latching, preserve fire‑sealing performance for fire‑rated double‑door assemblies |
| Application | Wooden / Metal / Steel / Fire‑Rated Double‑Leaf Door Assemblies, Commercial Institutional Building Hardware Projects |
| Production Capacity | 80,000 Units / Month |
| MOQ | 100 PCS |
| Sample Time | 5‑7 Working Days |
| Lead Time | 30‑35 Days |
| Packing | 1 Set / White Box, Standard Export Carton |
Application Scenarios
Fire‑Rated Double‑Leaf Commercial Installations
DR‑005 stainless‑steel gravity door selector is designed for office, hospital, school and public‑building fire‑rated double‑leaf door‑sets. Gravity‑driven sequencing guarantees inactive leaf closes first, avoiding smoke‑leaking gaps. Complies with NFPA‑80 closing‑sequence requirements for fire‑safety paired‑door assemblies.
New‑Build & Retrofit Double‑Door Projects
Soffit surface‑mount installation adapts both new‑construction and renovation retrofit without heavy frame alteration. SUS304 anti‑rust property fits interior‑exterior applications, select optional SUS316 variant for coastal salt‑air corrosion‑prone environments. Works with wooden, metal and steel double‑door‑sets.
Architectural Hardware Tender Specification Projects
Complete mounting hardware kit provided. Non‑handed reversible design reduces project stocking SKUs. Installation drawings and product datasheet can be supplied for tender documentation for commercial and institutional projects.
Product Characteristics
Heavy‑duty SUS304 stainless‑steel construction, SUS316 optional grade for coastal anti‑corrosion requirements
Gravity‑operated mechanical door‑selector sequencing; holds active leaf open until inactive leaf fully closes, prevents door‑collision and mis‑latching
Fully non‑handed reversible structure, adaptable for left‑hand and right‑hand paired double‑door configurations
Soffit overhead surface‑mount installation, compatible with most standard surface‑mount door‑closer hardware systems
Multiple premium surface‑finish choices, fits wooden, metal, steel and fire‑rated double‑leaf interior‑exterior door assemblies
Full‑set mounting accessories included for quick on‑site installation; monthly capacity 80 000 units for B2B wholesale orders
Warranty & Customization
Standard quality warranty against manufacturing defects of stainless‑steel housing and mechanical moving components
Bulk wholesale supply for architectural construction and fire‑safety double‑door tender projects; SUS316 material custom option available
2D installation drawing and product datasheet available for tender submission documentation
Frequently Asked Questions
What is the purpose of DR‑005 door selector?
DR‑005 gravity‑type door selector (door coordinator) controls correct closing‑sequence for double‑leaf fire‑rated doors. It keeps active leaf held open until inactive leaf is fully closed, avoiding door impact, mis‑latching and smoke‑passing gaps on paired fire‑door assemblies.
Can DR‑005 be deployed in coastal salty‑air locations?
Standard build uses SUS304 stainless‑steel; you can choose optional SUS316 material variant for coastal salt‑air anti‑corrosion application scenarios.
Is DR‑005 non‑handed for left‑right double‑door installation?
Yes, DR‑005 is fully non‑handed and reversible, it can be adjusted for both left‑hand and right‑hand paired double‑door layouts.
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