Explore pricing, inventory, and place orders for our Grooved Rigid Couplings (Model: XGQT01).
Grooved couplings are categorized into two primary types: Rigid Couplings and Flexible Couplings.
Rigid Couplings are designed for piping systems requiring structural rigidity. Featuring built-in grip teeth, these couplings create a secure, non-yielding connection comparable to traditional flanged, welded, or threaded joints.
Why Choose Our Rigid Couplings? · Superior Rigidity: Designed to maintain structural integrity in high-pressure or heavy-load applications.
· Quality Assurance: Engineered with precision to meet international standards for durability and performance.
Contact us to explore inventory options or request a quote for your project.
| Available Sizes | 1–12 inch (DN25–DN300) |
| Working Pressure | 300 PSI | FM Approved / UL Certified |
| Coating Options | Red Painted / Galvanized / Epoxy Blue / Grey |
| Gasket Materials | EPDM / NITRILE / SILICON |
Product Features Our tongue-and-groove rigid couplings are engineered for applications requiring structural rigidity. While grooved coupling systems are widely recognized for streamlined installation, our design stands apart:
Integral Tooth Mechanism: Built-in teeth securely grip pipe ends, eliminating unwanted flexing and ensuring reliable load transfer.
Installation Efficiency: The grooved connection system reduces installation time compared to traditional methods, ideal for tight schedules.
Certification Compliance: Specific product listings and technical data are available on FM (Factory Mutual) and UL (Underwriters Laboratories) official websites for compliance verification.
Key benefits include:
Zero Angular Deflection: Eliminates rotational or lateral movement post-installation, ensuring precise alignment in long pipeline runs.
Axial Stability: Prevents unwanted axial displacement, ideal for high-pressure applications or systems subject to mechanical stress.
Installation Simplicity: Streamlines setup in rigid pipe networks, reducing labor time while maintaining leak-proof integrity.
Ideal for industrial, commercial, and municipal applications where rigidity and reliability are critical, these couplings combine the ease of grooved connections with the strength of permanent joints.
| Nominal Size | Pipe O.D | Working Pressure | Max.End Load | Pipe End Separation | Dimensions | Bolt Size | |||
| mm/in | mm/in | PSI/Mpa | KN/Lbs | mm/in | L(mm/in) | H (mm/in)φ(mm/in) | No.-Size(mm) | ||
| 25 | 33.7 | 300PSI 2.07MPa | 363PSI 2.5MPa | 3.0/680 | 0-2.0 | 99 | 43 | 55 | 2-M10×55 |
| 1 | 1.327 | 0-0.08 | 3.898 | 1.693 | 2.165 | ||||
| 40 | 48.3 | 6.3/1420 | 0-3.2 | 115 | 43 | 70 | 2-M10×55 | ||
| 1%2 | 1.902 | 0-0.13 | 4.528 | 1.693 | 2.756 | ||||
| 50 | 60.3 | 9.8/2210 | 0-3.2 | 128 | 43 | 83 | 2-M10×55 | ||
| 2 | 2.374 | 0-0.13 | 5.039 | 1.693 | 3.268 | ||||
| 65 | 76.1 | 14.4/3240 | 0-3.2 | 145 | 44 | 100 | 2-M10×60 | ||
| 2/2 | 2.996 | 0-0.13 | 5.709 | 1.732 | 3.937 | ||||
| 80 | 88.9 | 21.4/4810 | 0-3.2 | 160 | 44 | 113 | 2-M10×60 | ||
| 3 | 3.500 | 0-0.13 | 6.299 | 1.732 | 4.449 | ||||
| 100 | 108.0 | 31.5/7100 | 0-3.2 | 186 | 47 | 134 | 2-M12×65 | ||
| 4 | 4.252 | 0-0.13 | 7.323 | 1.850 | 5.276 | ||||
| 100 | 114.3 | 35.4/7960 | 0-3.2 | 192 | 47 | 141 | 2-M12×65 | ||
| 4 | 4.500 | 0-0.13 | 7.559 | 1.850 | 5.551 | ||||
| 125 | 133.0 | 28.7/6460 | 0-3.2 | 214 | 48 | 161 | 2-M12×70 | ||
| 5 | 5.236 | 0-0.13 | 8.425 | 1.890 | 6.339 | ||||
| 125 | 139.7 | 52.9/11800 | 0-3.2 | 221 | 48 | 168 | 2-M12×70 | ||
| 5 | 5.500 | 0-0.13 | 8.701 | 1.890 | 6.614 | ||||
| 150 | 159.0 | 41.0/9240 | 0-3.2 | 245 | 49.5 | 190 | 2-M12×70 | ||
| 6 | 6.260 | 0-0.13 | 9.646 | 1.949 | 7.480 | ||||
| 150 | 165.1 | 73.8/16610 | 0-3.2 | 251 | 49.5 | 196 | 2-M12×70 | ||
| 6 | 6.500 | 0-0.13 | 9.882 | 1.949 | 7.717 | ||||
| 150 | 168.3 | 76.7/17260 | 0-3.2 | 254 | 49.5 | 199 | 2-M12×70 | ||
| 6 | 6.626 | 0-0.13 | 10.000 | 1.949 | 7.835 | ||||
| 200 | 219.1 | 116.9/26280 | 0-3.2 | 325 | 59 | 255 | 2-M16×85 | ||
| 8 | 8.626 | 0-0.13 | 12.795 | 2.323 | 10.039 | ||||
| 250 | 273.0 | 121.0/27210 | 0-3.2 | 416 | 63 | 322 | 2-M20×110 | ||
| 10 | 10.750 | 0-0.13 | 16.378 | 2.480 | 12.677 | ||||
| 300 | 323.9 | 170.3/38280 | 0-3.2 | 470 | 63 | 377 | 2-M20×120 | ||
| 12 | 12.752 | 0-0.13 | 18.504 | 2.480 | 14.843 | ||||
| 250 | 273.0 | 225PSI 1.6MPa | 225PSI 1.6MPa | 121.0/27210 | 0-3.2 | 416 | 61 | 320 | 2-M20×110 |
| 10 | 10.750 | 0-0.13 | 16.378 | 2.402 | 12.598 | ||||
| 300 | 323.9 | 170.3/38280 | 0-3.2 | 470 | 61二 | 375 | 2-M20×120 | ||
| 12 | 12.752 | 0-0.13 | 18.504 | 2.402 | 14.764 | ||||
FAQ As a global supply chain service provider with operations in over 30 countries and regions, our comprehensive product range—encompassing pipes, fittings, valves, and fire-fighting equipment—has obtained ISO international quality certification and complies with multiple regional standards, including CE, UL, and SASO. These products have been successfully implemented in various international scenarios, such as infrastructure projects in Southeast Asia, commercial complexes in the Middle East, and fire renovation projects in Eastern Europe. For both regular procurement and cross-border customization, we offer an integrated solution that spans product selection, customs clearance, and logistics management.
Absolutely. For overseas customization requests, our engineering team collaborates directly with international blueprints and technical specifications to provide multi-standard compatible designs, including wall thickness conversion and pressure grade adaptation. Additionally, we provide:
- Third-party testing reports for pre-production samples
- Packaging labels compliant with the destination country's regulations
- Bilingual technical documentation and compliance certificates to ensure smooth local acceptance
We enforce a global quality control system that surpasses national standards. Each batch undergoes rigorous testing, including raw material composition analysis, pressure burst tests, and salt spray corrosion resistance evaluations, accompanied by bilingual (Chinese-English) quality inspection reports. Based on project location requirements, we can furnish free certification documents for target markets, such as CE (European Union), UL (United States), and BIS (India). Furthermore, we support on-site inspections and remote video audits to ensure full transparency in the quality control process.
The standard delivery cycle for overseas orders ranges from 25 to 45 working days. We offer diverse shipping options, including full container loads, less-than-container loads, and air freight express services. Our international logistics network covers major ports and airports worldwide. To facilitate swift customs clearance, we provide essential international certification documents, such as certificates of origin and commercial invoices. Leveraging our bonded warehouses in Hong Kong and Shenzhen, select Southeast Asian orders can be expedited with delivery within 7 to 10 days.
We deliver cross-border after-sales support through a 7x12-hour customer service model (email/WhatsApp/phone) with a guaranteed response time of two hours and a resolution proposal within 24 hours. For warranty-related quality issues, we cover basic shipping costs from Chinese ports or airports to the destination port. Additionally, we provide remote technical guidance, bilingual materials, and coordinate online support with engineers when necessary.
Absolutely. As a one-stop supplier, we specialize in customizing products to match your unique project needs:
Customizable parameters: Pipe diameter (DN15-DN2000), valve pressure rating (PN10-PN400), material (304/316 stainless steel, carbon steel, galvanized steel);
Fire system customization: We collaborate with your engineers to design integrated systems (e.g., high-rise building fire pipelines + matching valves + sprinklers) and provide 2D/3D drawings for confirmation before production.
Sample production is available for testing prior to mass orders.
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