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CA-FIRE CMSA161 Series Sprinkler Product Introduction

For CMSA161 Series Special Application Sprinklers (CMSAZ 161 Upright / CMSAX 161 Pendent)

0. Company Introduction

CA-FIRE Fire Protection Co., LTD, founded in 2012 and located in Quanzhou, China, specializes in the research, development, and manufacturing of high-quality firefighting equipment. Our products include fire sprinklers (FM certified), hydrants, alarm valves, foam systems, and nozzles (CCC and CE certified). We are committed to providing reliable, durable, and compliant fire protection solutions for residential, commercial, and industrial buildings worldwide.CA-FIRE specializes in high-quality fire protection equipment. We provide a wide range of products to meet diverse fire safety needs, including: Fire Sprinklers; Indoor and Outdoor Fire Hydrants; Alarm Valves, Wet and Deluge Valves; Foam Systems, Foam Bladder Tanks, and Foam Generators; Fire Nozzles, Water Monitors, and Fire Hoses; Hose Reels, Couplings, and Accessories; Valves and Signal Devices. All products are manufactured with strict quality control and meet international fire protection standards. Custom sizes and solutions are available to suit specific project requirements.

1. Product Overview & Core Advantages

1.1 Product Overview

The CMSA161 Series Sprinkler (CMSAZ 161 Upright / CMSAX 161 Pendent) is a special application sprinkler designed for high stack and shelf warehouses, featuring large flow rate, specialized water distribution, and high thermal sensitivity. As a key component of automatic fire protection systems, it effectively controls fire spread with low working pressure requirements, and is minimally affected by obstacles in the warehouse environment. Compatible with both wet and dry fire protection systems, it operates via a fusible alloy welding element: when ambient temperature reaches the rated operating temperature, the fusible alloy melts, separating the metal sheet and detaching support components from the frame to open the water channel, ensuring uniform water distribution through the splash tray.

1.2 Core Advantages

Specialized for High-Risk Warehouses: Tailored for high stack and shelf warehouses, with optimized water distribution and obstacle-resistant design-ideal for fire protection in dense storage environments.

Large Flow & Efficient Suppression: Boasts a high discharge coefficient (K=11.2 GPM/psi¹/², 161 LPM/bar¹/²) for large water output, enabling rapid fire control even in expansive warehouse spaces.

Flexible Temperature Options: Available in four temperature ratings (68°C, 74°C, 80°C, 100°C) to adapt to different warehouse ambient temperatures and fire risk levels.

Durable & Reliable Construction: Frame and sealing socket made of brass, deflector and structural parts (hook, compression screw) of S304 stainless steel, and EPDM sealing-ensuring corrosion resistance and long-term stability in industrial storage environments.

Low Pressure Requirement & System Compatibility: Operates efficiently at low working pressure, compatible with both wet and dry fire protection systems; standard 3/4" BSPT threads (NPT optional) for easy integration into existing pipelines.

Precise Installation Standards: Clear torque guidance (max. 25N·m) and specialized installation requirements ensure consistent performance and avoid damage during setup.

2. Technical Specifications

Specification Category	Details
Model Numbers	CMSAZ 161 (Upright), CMSAX 161 (Pendent)
Type	Special Application Sprinkler, Large Flow, Standard Response
Maximum Working Pressure	12 bar (175 psi)
Discharge Coefficient (K-factor)	11.2 GPM/psi¹/² (161 LPM/bar¹/²)
Inlet Size & Thread	Standard: 3/4" BSPT; Optional: 3/4" NPT
Temperature Ratings	68°C, 74°C, 80°C, 100°C
Surface Finish	Natural Brass
Material Composition	Frame: Brass; Sealing: EPDM; Sealing Socket: Brass; Temperature-Sensing Element: Fusible Alloy; Hook/Compression Screw: S304 Stainless Steel; Deflector: S304 Stainless Steel
Compatible Systems	Wet fire protection systems, Dry fire protection systems
Maximum Installation Torque	≤25 N·m
Certifications	CCC, CE

3. Installation & Maintenance Instructions

3.1 Installation Guidelines

Personnel Qualification: All installation personnel must complete professional training before undertaking installation work.

Pre-Installation Inspection: Unpack each sprinkler and inspect for transportation damage-do not install damaged units.

Storage & Handling: Use original packaging for storage and transportation; place each sprinkler separately to prevent mutual collision or damage. Avoid bumping the sprinkler during installation.

Construction Restrictions: No cross-construction is allowed at the installation site, as it may cause damage to the sprinkler.

Prohibited Practices: Do not stack or move sprinklers installed on short risers; this may deform or damage the units.

System Readiness: Install the sprinkler only after the fire protection system has passed pressure testing and flushing to ensure no debris blocks the water channel.

Tool Requirements: Use a fixed wrench with the appropriate opening size-do not use adjustable wrenches or pipe clamps, as they may damage the sprinkler.

Thread Sealing: 严禁使用麻丝(hemp) for thread sealing. Use polytetrafluoroethylene (PTFE) leakproof film (raw material tape) or non-curable pipe thread adhesive instead.

No Modifications: Do not disassemble or modify the sprinkler during installation; applying decorative coatings on any part of the sprinkler is strictly prohibited.

Protective Clip Removal:

The protective clip consists of two independent covers buckled together, protecting the activation component. Do not remove it until the sprinkler is fully installed on the branch pipe.

To remove: Squeeze the visible raised buckle on one side with fingers or a tool, then pull open to separate the covers.

After removal, inspect the sprinkler thoroughly. Replace with a unit of the same specification if the frame, splash tray, or release element is deformed or damaged.

3.2 Maintenance Tips

Regular Visual Inspections: Periodically check for physical damage (e.g., bent frame, cracked deflector), corrosion, or blockages (debris on the splash tray or inlet). Clean surface dust with a soft brush-avoid abrasive cleaners that may damage components.

System-Level Maintenance: The system owner is responsible for maintaining the fire protection system in proper operating condition. Coordinate with qualified contractors to conduct annual inspections, including pressure testing and functional verification of the sprinklers.

Damage Replacement: Immediately replace sprinklers with melted fusible alloy, deformed components, worn threads, or damaged activation elements-damaged units cannot guarantee reliable fire suppression.

Compliance Check: Ensure all maintenance and modifications comply with this manual, local regulations, and standards of relevant authorities having jurisdiction.

Protective Measures: During warehouse renovations or maintenance, cover installed sprinklers with temporary protection to avoid dust accumulation or physical damage.

4. Packaging & Transportation

Our products are carefully packaged using export-standard wooden crates or wooden pallets to ensure safe transportation. This packaging method provides stability, prevents damage during handling, and guarantees that all items arrive at the customer's location in excellent condition.

5. Application Scenarios

Specialized Warehouses: High stack warehouses, shelf warehouses, and pallet racking warehouses (for storage of general goods, cartons, textiles, and other combustibles).

Industrial Storage Facilities: Logistics centers, distribution warehouses, and large-scale storage yards with dense stacking requirements.

Commercial Storage Spaces: Wholesale warehouses, retail inventory facilities, and cold storage warehouses (excluding ultra-low temperature environments beyond temperature rating limits).

Industrial Workshops: Manufacturing facilities with high rack storage areas, such as electronics factories, textile mills, and packaging workshops.

Logistics Hubs: Freight terminals, container storage areas, and warehouse complexes with high fire risk from stacked goods.

6. Frequently Asked Questions (FAQ)

Q: What makes the CMSA161 suitable for high stack warehouses?A: It features a specialized water distribution design, large flow rate (K=161), and low sensitivity to obstacles-ensuring water reaches fire sources even in dense stacking environments, effectively controlling fire spread.

Q: Can I choose an NPT thread instead of the standard BSPT?A: Yes. The standard inlet thread is 3/4" BSPT, and NPT threads are available as an optional configuration to match your project's pipeline requirements.

Q: What temperature rating should I select for my warehouse?A: Choose based on your warehouse's ambient temperature: 68°C or 74°C for standard warehouses; 80°C or 100°C for warehouses with higher ambient temperatures (e.g., near heat-generating equipment) or higher fire risk.

Q: Why is an adjustable wrench not allowed for installation?A: Adjustable wrenches or pipe clamps may slip during installation, damaging the sprinkler frame or threads. A fixed wrench with the correct opening size ensures secure, damage-free tightening.

Q: Can the CMSA161 be used in both wet and dry systems?A: Yes. It is fully compatible with both wet and dry fire protection systems, offering flexibility for different warehouse infrastructure and climate conditions.

7. Product Comparison Table

Item	CMSA161 Series Sprinkler
International Certification	CCC+CE
K-Factor (Flow Capacity)	161 LPM/bar¹/² (large flow)
Temperature Rating Options	4 options (68/74/80/100°C)
Compatible Systems	Wet + Dry
Installation Torque Guidance	Max. 25N·m (clear standard)
Material Quality	Brass+S304 stainless steel+EPDM
Obstacle Resistance	High (optimized for dense storage)
Maintenance Cost (Annual)	$18/unit
After-Sales Warranty	2 years + technical support
Thread Options	BSPT (standard) + NPT (optional)

8. Contact: Dulcia

Email: sales8@ca-fire.com

Tel/WhatsApp: +86 191 6381 1547

WeChat: Dulcia8

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