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In any piping system, the integrity of the connection is paramount. Jianzhi offers a modern, efficient, and highly dependable solution with our premium grooved couplings. Engineered for swift installation and long-term reliability, our couplings provide a secure joining method that stands superior to traditional welding or flanging. Fulfilling our brand promise of "Safer, No Leak," we provide an extensive range of durable pipe coupling solutions, crafted from high-strength metal coupling materials for unparalleled performance in the most demanding environments.
The genius of the grooved coupling lies in its straightforward and effective design. The system works through three primary components: the gasket, the housings, and the bolts and nuts. The process is simple:
1.A specially designed elastomeric gasket is stretched over two grooved pipe ends.
2.Two housing segments are then fitted over the gasket. Integrated keys within the housings engage precisely with the grooves in the pipes.
3.As the bolts and nuts are tightened, the housings clamp down on the gasket, creating a secure, unified joint. This action compresses the gasket to form a pressure-responsive, leak-tight seal that strengthens as internal system pressure increases.
Every component of our grooved coupling is engineered for maximum performance and longevity:
> Housings: The robust outer shells are cast from high-strength Ductile Iron (ASTM A536, GRADE 65-45-12), providing a formidable containment for the joint and ensuring it withstands high pressure and external stress.
> Gasket: The elastomeric gasket is the primary sealing component. It is designed to be pressure-responsive, meaning the seal becomes stronger as internal pressure increases. Available in various materials like EPDM for water services (-30°C to 130°C) and Nitrile for petroleum products (-20°C to 80°C) to suit different applications.
> Bolts and Nuts: High-tensile, heat-treated bolts and nuts are used to secure the housings. They are typically coated or plated (e.g., hot-dip galvanized) for enhanced corrosion resistance, ensuring long-term joint integrity.
> Superior Safety & Reliability: Offers a secure, leak-free connection, validated by rigorous pressure testing and international certifications like FM and UL.
> Rapid Installation: Significantly reduces assembly time compared to traditional methods. No welding or special tools are required, lowering labor costs.
> Design Flexibility: The system accommodates pipe movement. Flexible couplings allow for controlled expansion, contraction, and angular deflection, reducing stress on the system.
> Enhanced Durability: As a leading durable coupling solution, our products are made from robust ductile iron with protective coatings (e.g., paint, epoxy, galvanization) to resist corrosion and ensure a long service life.
> Vibration and Noise Reduction: The elastomeric gasket helps absorb and dampen system vibration and noise.
> Easy Maintenance: Couplings can be easily disassembled for system access, simplifying maintenance and modifications.
| Specification | Details |
|---|---|
| Material | Ductile Iron conforming to ASTM A536, Grade 65-45-12 |
| Size Range | 1" – 24" (DN25 – DN600) |
| Working Pressure | Up to 363 PSI / 2.5 MPa (varies by model and size) |
| Surface Finish Options | Epoxy Powder Coated (Red/Orange), Painted, Hot-Dip Galvanized, Electroplated |
| Gasket Materials & Temperature Range |
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| Certifications | FM Approved & UL Listed |
Our grooved couplings are trusted globally for their versatility and robust performance in a wide array of applications:
> Fire Protection Systems: The primary application for reliable sprinkler and fire pipe connections.
> Water Supply & Treatment: Used extensively in municipal and industrial water pipelines.
> HVAC & Heating: Ideal for connecting heating and cooling system pipes.
> Industrial Processes: Suitable for oil, gas, and building gas pipelines.
> General Plumbing & Construction: Used in large-scale commercial and residential buildings, including landmark projects like the National Stadium (Bird's Nest) and Shanghai World Financial Center.
For a durable coupling solution that delivers unmatched security, speed, and reliability, choose Jianzhi. Explore our complete collection of rigid and flexible grooved pipe couplings below to find the perfect fit for your project. For technical inquiries or bulk orders, contact our expert team today.
