Ensuring the reliability of fire sprinkler systems starts with secure and durable connections. CNG’s rigid couplings are designed for high-pressure fire sprinkler pipelines, providing leak-proof, mechanically robust joints that meet the demands of large-scale fire protection projects. Manufactured from premium ductile iron and carbon steel, they maintain system integrity under extreme conditions and rigorous testing.
For EPC contractors, distributors, and procurement teams, choosing the right rigid coupling means:
Reliable sealing under high pressure to prevent leaks
Durable material construction that resists corrosion and environmental stress
Compatibility with standard fire sprinkler piping systems for flexible installation
Compliance with international fire safety standards including FM and UL certifications
CNG rigid couplings address these requirements, ensuring your fire sprinkler systems operate safely, efficiently, and continuously.
High-Strength Materials – Ductile iron or carbon steel for maximum durability
Leak-Proof Design – Precision machining ensures secure, tight joints
Easy Installation – Grooved design enables fast assembly, reducing labor costs
Corrosion & Temperature Resistant – Ideal for indoor and outdoor sprinkler networks
Certified Quality – FM, UL, and ISO standards for peace of mind
CNG’s rigid couplings are designed to meet the needs of bulk buyers, distributors, and large engineering projects, including:
Fire protection contractors managing multi-building projects
EPC companies sourcing consistent-quality components for large pipeline networks
Distributors stocking FM/UL approved fire sprinkler couplings for resale
With CNG, procurement teams gain not only high-quality rigid couplings but also reliable support for OEM customization, large-volume supply, and global logistics.
CNG has extensive experience manufacturing grooved and rigid pipe couplings for fire sprinkler systems worldwide. Each coupling undergoes strict quality control and certification testing, ensuring long-lasting, leak-free performance. Choosing CNG allows procurement teams to streamline sourcing, reduce project risk, and ensure compliance with the highest fire protection standards.
Contact CNG today to discuss bulk orders, OEM requirements, or project-specific rigid couplings for fire sprinkler systems.
Contact Us
