Anti-Corrosion Wax-Coated ZSTX80-74℃ Fusible Alloy Pendant Standard Response Sprinkler (UL Certified)

The Anti-Corrosion Wax-Coated ZSTX80-74℃ Fusible Alloy Pendant Standard Response Sprinkler (UL Certified) is a specialized fire protection device designed for mild to moderate corrosive environments. It combines reliable 74℃ fusible alloy activation, standard response performance, and a protective wax coating, all certified to UL 199 standards for safe and effective fire suppression.

•Product Name：Anti-Corrosion Wax-Coated ZSTX80-74℃ Fusible Alloy Pendant Standard Response Sprinkler (UL Certified)
•Material :Brass (valve body & frame), fusible alloy (temperature-sensitive element), glass-reinforced nylon (deflector), anti-corrosion wax coating (surface treatment)
•Size :1/2"–1" NPT/BSPT (thread size); 80mm (nominal orifice diameter)
•Nominal Pressure :0.15–1.2 MPa (21.8–174 psi)
•Operating Temp :74℃ (fusible alloy activation temperature); -10℃ to +50℃ (storage & non-operating temperature range)
•Response Type :Standard response (RTI: 80–100 m^(1/2)s^(1/2))
•Flow Coefficient (K-Factor) :80 (US gpm/psi^(1/2))
•Certification :UL Listed (conforms to UL 199, Standard for Automatic Sprinklers for Fire-Protection Service)
•Installation Type :Pendant type (vertical downward installation)
•Anti-Corrosion Grade :Suitable for mild to moderate corrosive environments (e.g., coastal areas, industrial workshops with weak chemical fumes) due to wax coating
•OEM Service：Accepted
•Delivery Terms：FOB, CFR, CIF, EXW, DAP
•Payment Mode：T/T, L/C, PayPal, Western Union, Letter of Credit at Sight

Product category:

UL/FM Fire Sprinkler

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linhaifeng117@gmail.com

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Product Details

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Product Formation

This sprinkler features a robust structural design centered on a brass valve body and frame, chosen for its inherent strength and compatibility with the anti-corrosion wax coating. The temperature-sensitive component is a high-precision fusible alloy that melts precisely at 74℃, triggering the sprinkler to release water for fire suppression. A glass-reinforced nylon deflector is integrated at the bottom of the pendant structure; this component ensures uniform water distribution in a downward pattern, covering a specified area to maximize fire suppression efficiency.​

The key differentiator is its anti-corrosion wax coating—applied evenly across the entire external surface of the brass body and frame, the coating acts as a barrier against moisture, salt, and weak chemical fumes, making the sprinkler ideal for coastal regions, industrial workshops, or areas with high humidity. The sprinkler is engineered with a 1/2"–1" NPT/BSPT thread size for easy installation onto standard fire sprinkler piping systems, and its pendant-type design allows for vertical downward mounting, which is common in commercial, industrial, and residential fire protection setups. Every unit undergoes rigorous testing to meet UL 199 standards, ensuring compliance with global fire safety regulations, and it maintains a flow coefficient (K-factor) of 80, delivering a consistent water flow rate to match standard response fire protection requirements.

KEY WORDS： Anti-corrosion wax-coated fire sprinkler, ZSTX80-74℃ fusible alloy sprinkler, pendant standard response sprinkler, UL certified fire sprinkler, 74℃ activation fire sprinkler, brass fire sprinkler, corrosion-resistant fire protection device, China, manufacturers, suppliers, wholesale, factory

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Product Features

1.Precise 74℃ Activation: Equipped with a high-accuracy fusible alloy that melts at exactly 74℃, ensuring timely activation only when exposed to fire-related heat, avoiding false triggers and ensuring rapid fire response.​

2. Anti-Corrosion Wax Coating: A durable wax coating on the brass body/frame provides robust protection against mild to moderate corrosion from humidity, salt, or weak chemicals, extending the sprinkler’s service life in harsh environments like coastal areas or industrial facilities.​

3. UL Certification & Standard Response: Fully UL 199 certified, guaranteeing compliance with strict fire safety standards. It operates as a standard response sprinkler (RTI: 80–100 m^(1/2)s^(1/2)), delivering reliable water flow for effective fire suppression in general fire scenarios.​

4. Uniform Water Distribution: The glass-reinforced nylon deflector is optimized to spread water in a wide, even downward pattern, covering the designated protection area and enhancing fire suppression efficiency.​

5. Versatile Installation & Compatibility: Features 1/2"–1" NPT/BSPT threads, compatible with most standard fire sprinkler piping systems. Its pendant-type vertical downward design suits various spaces, including offices, warehouses, and residential buildings.​

6. Durable Construction: Brass valve body/frame offers high mechanical strength and resistance to impact, while the glass-reinforced nylon deflector resists deformation, ensuring long-term structural integrity and performance.
 

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Product Parameter

Model	ZSTX80-74℃
Product Type	Anti-Corrosion Wax-Coated Pendant Standard-Response Sprinkler
Activation Mechanism	Fusible Alloy (Temperature-Sensitive)
Temperature Rating	74℃ (165.2℉)
K-Factor	K80
Inlet Size	15mm (1/2 inch)
Response Time Index (RTI)	≥80 (Standard-Response)
Operating Pressure Range	0.1MPa - 1.2MPa (14.5psi - 174psi)
Flow Rate	~24.4 GPM at 30psi; ~34.5 GPM at 60psi (varies by working pressure)
Spray Pattern	Full cone coverage, uniform water distribution (coverage diameter: 3.6m - 4.8m)
Installation Type	Pendant (Vertical Downward Installation)
Material	Brass body (anti-corrosion wax coating) + Fusible alloy element
Corrosion Resistance	Wax coating, suitable for mild corrosive environments (e.g., coastal, industrial)
IP Rating	IP54 (Dustproof, Water-Splash Resistant)
Operating Temperature	-10℃ to 60℃ (-14℉ to 140℉)
Application	Commercial buildings, industrial workshops, coastal facilities, warehouse, office complexes
Certification	UL, FM, ISO9001
Compliance Standards	NFPA 13, ANSI/UL 199, GB 5135.1
Product Dimensions	85mm × 62mm × 105mm (L × W × H)
Net Weight	180g
Special Features	Wax-coated anti-corrosion design; Reliable fusible alloy activation; Stable water distribution; Easy installation

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FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

Q: How can l get my order?
A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A： With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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With more than 15 years of experience serving clients, we have developed extensive expertise and in-depth industry knowledge, enabling us to deliver reliable and effective solutions tailored to your requirements.
We provide professional technical support and customized service offerings. Our committed technical team is available to assist you with product consultation, installation guidance, and comprehensive after-sales support whenever necessary.
At Sheng Feng Fire, our professionals are dedicated to helping you select the most suitable products based on your specific needs.
Please do not hesitate to contact us for further information！