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NRP ANSI BHMA Grade 2 Fire Rated Butt Door Hinge
- Product Information
SSS
PSS
MB
NRP ANSI BHMA Grade 2 Fire Rated Butt Door Hinge
NRP non‑removable pin ANSI/BHMA Grade 2 fire rated butt hinge. Cycle‑tested to 1,500,000 cycles complying with ANSI/BHMA A156.1. UL Listed UL 10C, 3‑hour fire‑rated, five‑knuckle two‑ball‑bearing full mortise square corner hinge, available size 4.5"×4.5"×3.4mm. WINGTEC is reliable China Manufacture, China Factory and China Supplier for ANSI fire rated hinges.
Product Specification
Technical Parameter
| Item | Parameter |
|---|
Application Scenarios
3‑Hour Fire‑Rated Door Assembly
Complies with NFPA 80 requirements, certified for fire‑rated wood and hollow‑metal door openings.
Non‑Removable Pin Security Application
NRP non‑rising non‑removable pin prevents unauthorized door removal for enhanced building security.
Commercial & Institutional Projects
Bulk wholesale supply for apartments, hotels, office buildings, schools and hardware contractors.
Product Characteristics
ANSI/BHMA A156.1 Grade 2 certified, 1,500,000 cycle performance test
UL Listed UL 10C 3‑Hours Fire Rated, UL File No. R42033
4.5"×4.5"×3.4mm dimension, five‑knuckle, two ball bearing for smooth quiet operation
NRP Non‑Rising Non‑Removable Pin design for anti‑theft security purpose
Full mortise square‑corner template hinge, template holes fit wood & hollow‑metal doors and frames
Stainless steel 201 / 304 / 316 optional; available finishes SSS / PSS / MB
China factory direct supply, stable quality for commercial architectural hardware projects
Warranty & Customization
Quality guarantee against manufacturing defects.
Custom finish, packaging and private label available for large‑volume orders.
Frequently Asked Questions
What does NRP mean for fire door hinge?
NRP means Non‑Rising Non‑Removable Pin. The pin cannot be pulled out when door is closed, improving security by preventing door from being lifted off the hinges.
What finishes and sizes are offered for this Grade 2 butt hinge?
Standard finishes: SSS satin stainless steel, PSS polished stainless steel, MB matte black. Available size 4.5"×4.5"×3.4mm, material choices: stainless steel 201, 304 and 316.
Can I purchase these NRP fire‑rated butt hinges wholesale from WINGTEC?
Yes, WINGTEC is China Manufacture, China Factory and China Supplier for ANSI/BHMA fire rated door hinges and architectural door hardware.
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