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ZSTX 202-68°C Q5 DN25 Automatic Fire Sprinklers – High-Flow Pendent Sprinkler Head

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ZSTX 202-68°C Q5 DN25 Automatic Fire Sprinklers – High-Flow & Reliable Automatic Sprinkler Head

Demand for high-performance automatic fire protection devices is growing rapidly, making automatic fire sprinklers the core choice for large-space fire safety projects. Our ZSTX 202-68°C Q5 DN25 automatic fire sprinklers deliver exceptional high-flow fire suppression, integrating seamlessly into various large-scale industrial and commercial spaces as a reliable automatic sprinkler head. As a professional automatic sprinkler company, CA-fire crafts this product to meet strict global standards, ensuring stable operation and efficient fire control.
This high-flow automatic sprinkler features a 68°C activation temperature and Q5 quick-response performance, paired with DN25 connection size, ideal for large-area protection (e.g., large warehouses, exhibition halls, factory workshops). It ensures timely activation in case of fire while avoiding accidental triggering, fitting most wet pipe fire sprinkler systems. Below is a comprehensive guide to its key features, technical specifications, installation, applications and advantages, tailored for engineers, contractors and fire safety professionals.
As a trusted automatic sprinkler corporation, CA-fire manufactures the ZSTX 202-68°C Q5 DN25 automatic fire sprinklers with industrial-grade materials and rigorous quality control. It offers a code-compliant solution for new builds, renovations and fire safety upgrades, delivering consistent high-flow performance, durability and cost-effectiveness to meet the needs of global large-space automatic fire protection projects.

What Are Automatic Fire Sprinklers & How Do They Work?

Understanding Automatic Sprinkler Head Technology

Automatic fire sprinklers are essential automatic fire protection devices installed in pendent, upright or ceiling configurations, designed to automatically activate and suppress fires without manual intervention. An automatic sprinkler head, the core component of the system, uses heat-sensitive technology to trigger water spray when fire temperatures reach a preset threshold. Our ZSTX 202-68°C Q5 DN25 automatic fire sprinklers adopt advanced quick-response technology, serving as high-flow automatic sprinkler heads for large-space fire protection.
This automatic sprinkler operates simply yet efficiently: its core is a 68°C heat-sensitive glass bulb filled with special liquid. When a fire breaks out, the surrounding temperature rises rapidly; once it reaches 68°C, the liquid expands, shattering the bulb and releasing pipeline water pressure. The automatic fire sprinkler then deploys a uniform full-cone high-flow water spray, quickly suppressing flames, cooling surfaces and preventing fire spread—protecting lives and property in the critical early stages of a fire.
Designed as a pendent automatic sprinkler head, the ZSTX 202-68°C Q5 DN25 is mounted vertically, ensuring optimal water distribution across large protected areas. Its high-flow design (nominal K-factor 202) delivers more water in a shorter time, making it ideal for spaces requiring rapid large-area fire suppression. As a professional automatic sprinkler company, we engineer this product to resist mechanical damage and corrosion, ensuring stable performance in harsh environments.

Key Features of Our ZSTX 202-68°C Q5 DN25 Automatic Fire Sprinklers

Our ZSTX 202-68°C Q5 DN25 automatic fire sprinklers integrate high-flow performance and reliable automatic activation, with features tailored to meet global automatic fire protection standards and large-space project needs. As a premium automatic sprinkler head, it stands out with the following advantages:
  • High-Flow Performance: Nominal K-factor 202, delivering large water flow to cover and suppress fires in large spaces quickly, exceeding standard automatic fire sprinklers.
  • 68°C Activation Temperature: Suitable for standard ambient spaces (10°C to 38°C), ensuring timely activation in case of fire while avoiding accidental triggering, ideal for general automatic fire protection scenarios.
  • Q5 Quick-Response: High-sensitivity thermal activation, activating faster than standard automatic sprinkler heads to minimize fire growth and property damage.
  • Pendent Automatic Sprinkler Head Design: Vertical mounting for optimal water distribution, fitting seamlessly into large warehouses, exhibition halls and factory workshops.
  • Durable Construction: Brass body and stainless steel deflector, resisting corrosion and mechanical damage, ensuring long service life for reliable automatic fire protection.
  • Standard DN25 Connection: 1″ NPT threaded connection, compatible with most wet pipe fire sprinkler systems, easy to install and integrate.

Technical Specifications of ZSTX 202-68°C Q5 DN25 Automatic Fire Sprinklers

As a high-performance automatic sprinkler head, the ZSTX 202-68°C Q5 DN25 is engineered to meet strict automatic fire protection standards, with technical specifications tailored for large-space high-flow fire suppression. Below is a detailed specification table:
Parameter
Specification
Model Number
ZSTX 202-68°C Q5 DN25
Product Type
Automatic Fire Sprinklers, Automatic Sprinkler Head, High-Flow Pendent Sprinkler, Quick-Response Automatic Sprinkler
Nominal K-Factor
202 (14.0 gpm/psi¹ᐟ²)
Activation Temperature
68°C (154°F), orange glass bulb (5mm diameter)
Response Type
Q5 Quick-Response, high-sensitivity thermal activation
Connection Size
DN25 / 1″ NPT, standard threaded connection
Working Pressure Range
0.1-1.6 MPa (14.5-232 psi)
Coverage Radius
5.0-7.0 meters (16.4-23.0 feet) at nominal pressure
Spray Pattern
Full cone spray, uniform high-flow water distribution
Installation Type
Pendent-type, vertical mounting
Material
Sprinkler Body: Brass; Deflector: Stainless Steel; Glass Bulb: Heat-Sensitive Borosilicate Glass
Overall Height
90-110mm (3.5-4.3 inches), practical pendent design
Operating Temperature Range
-4°C to 50°C (-20°F to 122°F), suitable for standard ambient spaces
Service Life
10-15 years under normal operating conditions
Certifications
NFPA 13, NFPA 13D, NFPA 13R Compliant; ISO 9001:2015 Certified
System Compatibility
Compatible with wet pipe fire sprinkler systems for automatic fire protection

Universal Quality Features for Automatic Fire Protection

As a professional automatic sprinkler corporation, we ensure our ZSTX 202-68°C Q5 DN25 automatic fire sprinklers meet the highest quality standards, with universal features that guarantee reliability and performance for automatic fire protection:
  • Precision Manufacturing: Strict quality control for glass bulb activation temperature (±1°C) and water flow rate, ensuring consistent performance of each automatic sprinkler head.
  • Easy Installation: Standard DN25 threaded connection and pendent design, reducing installation time and labor costs for automatic fire sprinkler systems.
  • Anti-Obstruction Design: Optimized deflector to prevent debris buildup, ensuring unobstructed water spray and reliable activation for automatic fire protection.
  • Global Code Compliance: Fully compliant with NFPA 13, NFPA 13D and ISO 9001:2015, meeting automatic fire protection requirements for global projects.

Key Advantages of ZSTX 202-68°C Q5 DN25 Automatic Fire Sprinklers

Our ZSTX 202-68°C Q5 DN25 automatic fire sprinklers stand out among other automatic fire protection devices, offering unique advantages for large-space fire safety projects as a high-performance automatic sprinkler head:

1. High-Flow Design for Large-Space Automatic Fire Protection

With a nominal K-factor of 202, this automatic sprinkler delivers significantly higher water flow than standard automatic fire sprinklers, covering large areas (5.0-7.0 meters coverage radius) quickly. It is ideal for large warehouses, exhibition halls and factory workshops, where rapid large-area fire suppression is critical for automatic fire protection.

2. Q5 Quick-Response for Timely Fire Suppression

Equipped with Q5 quick-response technology, the ZSTX 202-68°C Q5 DN25 automatic sprinkler head activates faster than standard automatic fire sprinklers. Its high-sensitivity 68°C glass bulb detects fire temperatures promptly, triggering water spray within seconds to minimize fire growth and property damage—enhancing automatic fire protection efficiency.

3. Reliable 68°C Activation for Standard Ambient Spaces

The 68°C activation temperature is perfect for standard ambient spaces (10°C to 38°C), ensuring timely fire activation while avoiding accidental triggering due to normal temperature fluctuations. This reliability makes it a versatile choice for general automatic fire protection scenarios in commercial and industrial buildings.

4. Durable & Corrosion-Resistant Construction

Manufactured from high-quality brass and stainless steel, our automatic fire sprinklers resist corrosion from humidity, chemicals and environmental factors, ensuring long service life (10-15 years). The robust design also resists mechanical damage, making it suitable for harsh industrial environments and ensuring consistent automatic fire protection performance.

5. Easy Installation & Compatibility

The standard DN25 / 1″ NPT threaded connection ensures compatibility with most wet pipe fire sprinkler systems, eliminating the need for custom adapters. The pendent design allows for quick vertical mounting, reducing installation time and labor costs—making it a cost-effective choice for automatic fire protection system upgrades and new builds.

6. Trusted Quality from Professional Automatic Sprinkler Company

As a reputable automatic sprinkler corporation, CA-fire adheres to strict global standards in manufacturing the ZSTX 202-68°C Q5 DN25 automatic fire sprinklers. Each product undergoes rigorous testing to ensure code compliance and reliable performance, providing peace of mind for automatic fire protection projects worldwide.

Applications of ZSTX 202-68°C Q5 DN25 Automatic Fire Sprinklers

Designed for high-flow large-space automatic fire protection, the ZSTX 202-68°C Q5 DN25 automatic fire sprinklers are ideal for various commercial and industrial applications that require efficient automatic sprinkler head performance:

1. Large Warehouses & Storage Facilities

Large warehouses, storage depots and distribution centers benefit from the high-flow and wide coverage of these automatic fire sprinklers. The automatic sprinkler head delivers sufficient water to suppress fires in large storage spaces, protecting valuable goods and ensuring automatic fire protection.

2. Exhibition Halls & Convention Centers

Exhibition halls and convention centers, with their large open spaces and high foot traffic, rely on our automatic fire sprinklers for reliable automatic fire protection. The pendent design blends seamlessly into the interior, while the high-flow performance ensures rapid fire suppression in case of emergencies.

3. Factory Workshops & Industrial Plants

Industrial workshops, manufacturing plants and assembly lines use these automatic fire sprinklers to meet strict automatic fire protection requirements. The durable, corrosion-resistant construction withstands industrial environments, while the quick-response and high-flow features minimize fire damage.

4. Gymnasiums & Sports Arenas

Gymnasiums, sports arenas and large indoor stadiums benefit from the wide coverage of the ZSTX 202-68°C Q5 DN25 automatic sprinkler head. The high-flow water spray covers large open areas, ensuring effective automatic fire protection for athletes, spectators and facilities.

5. Logistics Centers & Freight Terminals

Logistics centers and freight terminals, with their large floor areas and diverse goods, require reliable automatic fire protection. Our automatic fire sprinklers deliver high-flow performance to suppress fires quickly, preventing spread to adjacent areas and protecting logistics operations.

Installation Guidelines for ZSTX 202-68°C Q5 DN25 Automatic Fire Sprinklers

Proper installation is critical to ensuring the reliable performance of automatic fire sprinklers. Installation should be performed by certified technicians in accordance with NFPA 13 and local automatic fire protection codes. Below are key guidelines for this automatic sprinkler head:

Pre-Installation Preparation

  1. Design Verification: Confirm the automatic sprinkler is compatible with the fire sprinkler system design, including flow rates, pressure requirements and coverage areas for automatic fire protection.
  2. Material Preparation: Gather the automatic sprinkler, mounting hardware, thread sealant and tools. Ensure all components meet the automatic sprinkler company’s specifications.
  3. Site Inspection: Inspect the installation area for obstructions and ensure the mounting surface can support the automatic sprinkler head.

Step-by-Step Installation

  1. Mark Mounting Location: Mark the location based on manufacturer specifications, ensuring no obstructions within the coverage radius.
  2. Prepare Pipeline Connection: Thread the pipeline end to match the DN25 connection and apply thread sealant for a leak-tight fit.
  3. Mount the Automatic Sprinkler: Hand-tighten the sprinkler to the pipeline, then tighten an additional 1/4 to 1/2 turn with a wrench (do not over-tighten).
  4. Adjust Deflector: Ensure the deflector is positioned downward for optimal water distribution.
  5. Test the System: Conduct hydrostatic pressure and flow tests to verify automatic fire sprinkler performance and system integrity.
  6. Final Inspection: Document installation details and confirm the automatic sprinkler head is properly aligned and unobstructed.

Important Installation Notes

  • Maintain 300mm clearance between the automatic sprinkler head and obstructions to ensure unobstructed water spray for automatic fire protection.
  • Do not paint or modify the sprinkler body, glass bulb or deflector—this may affect automatic activation and performance.
  • Use additional sealant in humid or corrosive environments to prevent water intrusion and corrosion.

Maintenance & Inspection for Automatic Fire Sprinklers

Regular maintenance ensures the ZSTX 202-68°C Q5 DN25 automatic fire sprinklers remain operational for reliable automatic fire protection. Follow these guidelines from our automatic sprinkler corporation:

Quarterly Visual Inspections

  1. Inspect the automatic sprinkler head for damage, corrosion or discoloration; check the glass bulb for cracks.
  2. Verify no obstructions within 300mm of the automatic sprinkler.
  3. Check for leaks at the pipeline connection.

Annual System Testing

  1. Conduct hydrostatic pressure tests (1.5 times maximum working pressure) to check system integrity.
  2. Perform flow tests to confirm automatic sprinkler head flow rate and coverage.
  3. Test sample automatic sprinklers to verify 68°C activation temperature.

Replacement Guidelines

  • Replace automatic sprinklers with damaged glass bulbs, corrosion or physical damage.
  • Replace activated automatic sprinkler heads (cannot be reused).
  • Full system replacement is recommended every 10-15 years for optimal automatic fire protection.

Related Products (Internal Links)

As a professional automatic sprinkler company, CA-fire offers complementary products to enhance your automatic fire protection system:
  • PT Series Foam Sprinkler: High-performance foam automatic sprinklers for hazardous fire protection, complementing our high-flow automatic fire sprinklers.
  • K-ZSTDQ Series Flush Mounted Fire Sprinkler: Low-profile automatic sprinkler head, ideal for mixed-design automatic fire protection projects.
  • Fire Alarm Valves: Reliable control valves for wet pipe systems, ensuring proper activation of automatic fire sprinklers.
  • Foam Concentrate: High-quality foam concentrates to enhance automatic fire protection in industrial applications.

Contact Information

As a trusted automatic sprinkler corporation, CA-fire provides personalized support for your automatic fire protection needs. Contact us for more details about ZSTX 202-68°C Q5 DN25 automatic fire sprinklers, quotes or project consultations:
  • Email: sales@ca-fire.com
  • Mobile: +86 13400715622
  • WhatsApp: +86 18150362095
  • WeChat: 404863577

External Resource (Dofollow Link)

For detailed guidelines on automatic fire sprinklers and automatic fire protection system design, visit theNational Fire Protection Association (NFPA) website (NFPA 13: Standard for the Installation of Sprinkler Systems).
Parameter
Specification
Model Number
ZSTX 202-68°C Q5 DN25
Product Type
Automatic Fire Sprinklers, Automatic Sprinkler Head, High-Flow Pendent Sprinkler, Quick-Response Automatic Sprinkler
Nominal K-Factor
202 (14.0 gpm/psi¹ᐟ²)
Activation Temperature
68°C (154°F), orange glass bulb (5mm diameter)
Response Type
Q5 Quick-Response, high-sensitivity thermal activation
Connection Size
DN25 / 1″ NPT, standard threaded connection
Working Pressure Range
0.1-1.6 MPa (14.5-232 psi)
Coverage Radius
5.0-7.0 meters (16.4-23.0 feet) at nominal pressure
Spray Pattern
Full cone spray, uniform high-flow water distribution
Installation Type
Pendent-type, vertical mounting
Material
Sprinkler Body: Brass; Deflector: Stainless Steel; Glass Bulb: Heat-Sensitive Borosilicate Glass
Overall Height
90-110mm (3.5-4.3 inches), practical pendent design
Operating Temperature Range
-4°C to 50°C (-20°F to 122°F), suitable for standard ambient spaces
Service Life
10-15 years under normal operating conditions
Certifications
NFPA 13, NFPA 13D, NFPA 13R Compliant; ISO 9001:2015 Certified
System Compatibility
Compatible with wet pipe fire sprinkler systems for automatic fire protection

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