FM Approved Fire Sprinkler | NONFIR
FM Approved — Third-Party Certified

FM Approved
Fire Sprinkler
Heads

NONFIR FM approved sprinklers meet the most stringent international fire protection standards — independently tested and listed by FM Approvals (FM 2030) for commercial and industrial installations worldwide.

FM Approved Standard Response Quick Response Upright · Pendent · Sidewall K=5.6 (K80) UL Listing — In Progress
FM Approved
Factory Hydro Tested
Direct Manufacturer
Fujian, China · Global Export
See It In Action

FM Approved Sprinkler — Product & Factory Videos

Watch our FM approved fire sprinkler head overview and get an inside look at our Fujian manufacturing facility — factory hydro-tested, FM Approvals audited.

Product Introduction
FM Approved Fire Sprinkler Head Overview
A complete walkthrough of NONFIR's FM approved sprinkler range — covering model types, K-factor, response classes, and certification highlights for specifiers and distributors.
Factory Production
FM Sprinkler Manufacturing & QC Process
Go inside our Fujian facility to see how FM approved sprinkler heads are assembled, factory hydro-tested, and prepared for global export — full transparency from manufacturer to buyer.
FM Approved Product Range

FM Approved Sprinkler Heads

All NONFIR sprinkler heads carrying FM approval are independently verified to FM 2030 standards. Available in standard response and quick response variants, across three orientations — suitable for commercial buildings, warehouses, industrial facilities, and high-rise applications.

UL Listing — Application In Progress: We are currently pursuing UL listing for this sprinkler range. UL certification has been applied for and is under review. Please contact us for the latest status update before specifying for UL-required projects.
FM Approved
FM Approved Upright Fire Sprinkler NF3151
Standard Response
FM Approved Upright Sprinkler
Certificate
FM
K Factor
K=5.6 (K80)
Thread
R½" · ½"NPT
Bulb
5mm Glass
Frame
Chrome / Brass
Deflector
Chrome / Copper
SIN: NF3151
FM Approved
FM Approved Pendent Fire Sprinkler NF3251
Standard Response
FM Approved Pendent Sprinkler
Certificate
FM
K Factor
K=5.6 (K80)
Thread
R½" · ½"NPT
Bulb
5mm Glass
Frame
Chrome / Brass
Deflector
Chrome · Copper · SS
SIN: NF3251
FM Approved
FM Approved Horizontal Sidewall Sprinkler NF3351
Standard Response
FM Approved Horizontal Sidewall
Certificate
FM
K Factor
K=5.6 (K80)
Thread
R½" · ½"NPT
Bulb
5mm Glass
Frame
Chrome / Brass
Deflector
Chrome / Copper
SIN: NF3351
FM · Quick Response
FM Approved Quick Response Upright Sprinkler NF3131
Quick Response
FM Approved QR Upright Sprinkler
Certificate
FM
K Factor
K=5.6 (K80)
Thread
R½" · ½"NPT
Bulb
3mm Glass
Frame
Chrome / Brass
Deflector
Chrome / Copper
SIN: NF3131
FM · Quick Response
FM Approved Quick Response Pendent Sprinkler NF3231
Quick Response
FM Approved QR Pendent Sprinkler
Certificate
FM
K Factor
K=5.6 (K80)
Thread
R½" · ½"NPT
Bulb
3mm Glass
Frame
Chrome / Brass
Deflector
Chrome · Copper · SS
SIN: NF3231
FM · Quick Response
FM Approved Quick Response Horizontal Sidewall Sprinkler NF3331
Quick Response
FM Approved QR Horizontal Sidewall
Certificate
FM
K Factor
K=5.6 (K80)
Thread
R½" · ½"NPT
Bulb
3mm Glass
Frame
Chrome / Brass
Deflector
Chrome / Copper
SIN: NF3331
See It In Action

FM Approved Fire Sprinkler — Product Overview

Watch our FM approved sprinkler head range in detail — covering model variants, FM certification markings, K-factor specs, and installation guidance for upright, pendent, and horizontal sidewall configurations.

Product Introduction
FM Approved Fire Sprinkler Head — Full Range Overview
NONFIR FM approved sprinkler heads — standard response & quick response, upright / pendent / horizontal sidewall. FM 2030 certified. Direct manufacturer supply from Fujian, China.
Official Documentation

FM Approvals Certificate of Compliance

All three FM approval certificates are issued by FM Approvals (Approval ID: PR458954), granted 22 April 2025 — verified against FM Approval Standard Class Number 2000. Click any certificate to view full size.

FM Approval Certificate — Upright Fire Sprinkler NF3131 NF3151
View Certificate
FM Approved
Upright Sprinkler Certificate
Models: NF3131 (QR)  &  NF3151 (SR)
FM Class 2016  ·  Approval ID: PR458954  ·  22 Apr 2025
FM Approval Certificate — Pendent Fire Sprinkler NF3231 NF3251
View Certificate
FM Approved
Pendent Sprinkler Certificate
Models: NF3231 (QR)  &  NF3251 (SR)
FM Class 2017  ·  Approval ID: PR458954  ·  22 Apr 2025
FM Approval Certificate — Horizontal Sidewall Sprinkler NF3331 NF3351
View Certificate
FM Approved
Horizontal Sidewall Certificate
Models: NF3331 (QR)  &  NF3351 (SR)
FM Class 2012  ·  Approval ID: PR458954  ·  22 Apr 2025
Verification: All FM approvals can be independently verified at www.approvalguide.com · Approval Identification: PR458954 · Issued to: CA-Fire Protection Co., Ltd., Nan'an City, Fujian, China
Full Technical Specification

FM Approved Sprinkler — Specification Comparison

All models listed below carry FM approval and are manufactured at our Fujian facility with full factory hydro-test documentation. Suitable for NFPA 13 commercial sprinkler system design.

Model / SIN Type Response K Factor Bulb Size Certificate
NF3151 Upright Standard Response K=5.6 (K80) 5mm FM
NF3251 Pendent Standard Response K=5.6 (K80) 5mm FM
NF3351 Horizontal Sidewall Standard Response K=5.6 (K80) 5mm FM
NF3131 Upright Quick Response K=5.6 (K80) 3mm FM
NF3231 Pendent Quick Response K=5.6 (K80) 3mm FM
NF3331 Horizontal Sidewall Quick Response K=5.6 (K80) 3mm FM
Thread: R½"–½"NPT  |  Temperature Range: 0°C–100°C  |  Frame Finish: Chrome Plated / Brass  |  Available in Stainless Steel deflector (NF3231)
Why FM Approval Matters

FM Approved vs. Self-Certified:
The Difference Buyers Pay For

Buyers specifying FM approved fire sprinklers are not looking for "equivalent" or "meets standard" — they require the FM Approvals mark. Insurance underwriters, EPC contractors, and AHJs in the Middle East, Southeast Asia, and North America routinely mandate FM listing by name.

01
Independent Third-Party Verification
FM Approvals tests every component to FM 2030 — the global standard for fire sprinkler devices. No self-declaration, no manufacturer claim. The mark speaks for itself to specifiers.
02
Insurance & AHJ Acceptance
FM Global insured projects and many Authorities Having Jurisdiction explicitly require FM approved sprinkler heads. Non-FM products create liability gaps — FM-listed products don't.
03
Globally Recognized Listing
FM approval is accepted across North America, the Middle East (NFPA 13 jurisdictions), parts of Europe, and Asia-Pacific — one listing, multiple markets.
04
Manufacturer Accountability
FM Approvals conducts ongoing factory audits of listed manufacturers. Our Fujian facility maintains continuous FM surveillance to protect every shipment under the listing.
Factory & Quality Assurance

How Our FM Approved Sprinklers Are Made

Transparency matters to specifiers and procurement teams. This video walks through our Fujian manufacturing facility — covering the production process, assembly quality controls, and factory hydro-test procedures that back every FM approved sprinkler head we ship.

Manufacturing Process
FM Approved Sprinkler Head — Factory Production & Quality Control
A behind-the-scenes look at CA-Fire Protection Co., Ltd.'s Fujian facility — production lines, precision assembly, glass bulb insertion, and factory hydro-test for FM approved fire sprinkler heads.
About These Products

FM Approved Fire Sprinkler Manufacturer

What Is an FM Approved Fire Sprinkler?

An FM approved fire sprinkler is a sprinkler head that has been independently tested and listed by FM Approvals — a globally recognized certification body — against FM Standard 2030. The FM approval mark confirms that the product has passed rigorous performance, durability, and reliability testing beyond the minimum requirements of local standards.

NONFIR's FM approved sprinkler heads (SIN series NF31xx, NF32xx, NF33xx) are manufactured by CA-Fire Protection Co., Ltd. in Fujian, China and are available for direct export. All products are factory hydro-tested before shipment and carry traceable documentation.

FM Approved Pendent Sprinkler — Standard & Quick Response

Our FM approved pendent sprinkler range covers both standard response (5mm glass bulb, SIN NF3251) and quick response (3mm glass bulb, SIN NF3231). Both feature chrome-plated brass frames with copper or stainless steel deflector options, K-factor 5.6 (K80), and ½" NPT thread — fully compatible with NFPA 13 commercial system designs.

Specifiers requiring FM approval sprinkler heads for pendent installation in office, retail, hotel, or warehouse occupancies will find both response classes in stock for sample and bulk order.

FM Approved Sprinkler Manufacturer — Direct Factory Supply

As a direct FM approved sprinkler manufacturer, NONFIR (CA-Fire Protection Co., Ltd.) offers OEM/ODM services, certificate documentation packages, and bulk pricing for distributors, MEP contractors, and fire protection system integrators. Our FM listing covers upright, pendent, and horizontal sidewall configurations in both standard response and quick response variants.

Contact our export team for FM 2030 sprinkler datasheets, FM listing certificates, and pricing for your project or stock order.

Request FM Approval
Documentation & Pricing

Get FM listing certificates, technical datasheets, and competitive pricing for all six FM approved sprinkler head models. Direct from factory. Fast response.

Request a Quote Download Datasheet
NONFIR®
CA-Fire Protection Co., Ltd.  ·  No.8 YuanFeng Road, Meiyuan Village, Kangmei Town, Nanan City, Quanzhou City, Fujian, China
Tel: 0086-595-2695 7953  · 
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