UL Certified Steel Fire Rated Door Viewer Model 4014-40-60-CP with 1.5 Hour Fire Protection

Technical Specifications

Parameter	Specification Details
Model Number	4014-40-60-CP
Housing Material	High-Strength Alloy Steel
Tube Diameter	14 mm
Door Thickness Range	40 mm to 60 mm
Head Diameter	32 mm
Standard Finish	CP – Chrome Plated
UL Fire Rating	Certified for 1.5 Hours – 90 Minutes Fire-Resistance
Target Applications	Thick commercial entryways, modern hotel corridor doors, and high-rise residential exit doors

Key Benefits & Target Applications

Core Hardware Advantages

• Confirmed 1.5 Hour UL Fire Rating: Officially certified to maintain fire-barrier integrity for up to 90 minutes under high-temperature testing, preventing the transmission of heat, flame, or smoke.
• Deep-Profile Compatibility: Sized specifically for standard thick doors measuring 40 mm to 60 mm, ensuring a tight, flush mount without the need for loose, non-compliant adaptors.
• High-Melting-Point Steel: Constructed from carbon steel to withstand extreme structural heat up to 1000 degrees, keeping the viewer intact while lower-melting-point materials fail.
• Corrosion-Resistant Chrome Plating: The bright chrome finish provides an exceptionally smooth, modern metallic aesthetic that is highly resistant to humidity, corridor weathering, and wear.

Primary Application Environments

• Modern Office and Commercial Entrances: Perfect for corporate facilities and premium office entrances requiring certified, contemporary metal hardware.
• Luxury Condominiums and High-Rises: Fits thick residential entryway doors requiring strict UL compliance and a modern chrome look.
• Upscale Hotel Guest Rooms: Delivers highly secure, wide-angle corridor viewing for hotel entries measuring 40 to 60 mm in thickness.
• Hospitals and Public Facilities: Ideal for heavy-use fire doors in clinical and institutional corridor assemblies where sanitary chrome hardware is standard.

Custom Finishes and Accessories

We offer several electroplated finishes to match your project specifications:

Optional Finishes

• 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

Optional Accessories

• Extension F4014J: Matching steel thread extension tube
• Cover F4014G: Matching steel privacy cover

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 30 to 45 days depending on the batch order size and finishing options.
• Sample Policy: Physical product samples are available for quality evaluation and thread-fit 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 series has successfully passed strict UL fire-resistance testing, complying fully with USA and Canadian fire safety standards.

Frequently Asked Questions