UL Certified Steel Fire Rated Door Viewer Privacy Cover Model F4014G

Technical Specifications

Parameter	Specification Details
Model Number	F4014G
Material	High-Strength Alloy Steel
Compatible Tube Diameter	14 mm
Cover Diameter	35 mm
Standard Finish	CP – Chrome Plated
UL Fire Rating	Certified for 1.5 Hours – 90 Minutes Fire-Resistance
Target Applications	High-security guest rooms, hotel corridor fire doors, and high-rise residential assemblies using the 4014 steel door viewer series

Key Benefits & Target Applications

Core Hardware Advantages

• Assured 1.5 Hour UL Fire Rating: Rigorously certified to match standard fire-barrier regulations for up to 90 minutes, ensuring the accessory does not compromise the rating of the overall door assembly.
• High-Melting-Point Steel: Constructed from heavy-duty alloy steel, preventing melting or structural warp under intense fire conditions.
• Anti-Surveillance Shutter Design: Eliminates the possibility of reverse optical spy lens surveillance from the exterior corridor, guaranteeing complete indoor privacy.
• Corrosion-Resistant Chrome Plating: The sleek chrome plated finish provides high resistance to humidity and wear while delivering a modern, professional look matching commercial hallway hardware.

Primary Application Environments

• Hotel and Hospitality Fire Doors: Highly demanded by hotel developers to meet guest privacy expectations and strict local fire containment regulations.
• Commercial Offices and Boardrooms: Ideal for high-security executive areas and private suites requiring certified fire hardware.
• High-Rise Apartments and Condominiums: Perfect addition to main residential entry doors, ensuring complete resident privacy and building code compliance.
• Healthcare and Institutional Facilities: Fits corridor fire-barrier doors in hospitals and clinics where durable, clean-looking hardware is standard.

Custom Finishes

We offer several electroplated finishes to match your hardware collections:

• SC: Satin Chrome
• SN: Satin Nickel
• PB: Polished Brass
• CP: Chrome Plated – Standard
• G: Gold Plated
• AC: Antique Copper
• AB: Antique Brass
• ORB: Oil Rubbed Bronze

B2B Procurement Terms

To support commercial buyers, distributors, and door manufacturing plants, we provide standard export trade terms:

• Minimum Order Quantity: Please contact our sales department for specific finish and volume requirements.
• Production Lead Time: Typically 25 to 40 days depending on the batch order size and finishing options.
• Sample Policy: Physical product samples are available for quality evaluation and fitment testing by qualified trade buyers.
• Incoterms and Port of Loading: FOB Ningbo, Shanghai, or Tianjin.
• Export Packaging: Shipped in standard industrial packaging. Bulk packing is optimized for easy assembly by door manufacturers and hardware distributors.
• Technical Drawings and Certifications: We provide 2D and 3D CAD files alongside official UL compliance documentation to engineering teams and door manufacturers.

Manufacturing Capabilities and Certifications

Beijing Oupuoptic Instrument Co., Ltd. began operations in 2001 in Tongzhou District, Beijing. To support large-volume global exports, we established our modern manufacturing facility, Zhejiang Guocheng Technology Co., Ltd., in Zhejiang province in 2019.

Our manufacturing infrastructure and legacy include:

• A modern production facility covering over 5000 square meters.
• A workforce of more than 100 professionals.
• Automated CNC machining, high-precision finishing, and optical assembly lines.
• Full ISO9001 quality system certification.
• Direct import and export authorization.

Our optical engineering history:
Our Chairman, Mr. Shao Wencai, is an experienced optical designer who was deeply involved in developing China’s first-generation door viewer in 1978. He patented a 180-degree wide-angle door viewer in 1990, securing a national patent. He later designed a dual-purpose door viewer in 1998, followed by an enhanced optical door viewer system in 2006.

Our specialized steel door viewer accessory series has successfully passed strict UL fire-resistance testing, complying fully with USA and Canadian fire safety standards.

Frequently Asked Questions