Grooved Rigidlok Coupling Dome for Pipe Connection

The ASC Grooved Rigidlok Coupling Dome functions as a mechanical pipe connection component designed to join grooved steel and galvanized pipes within commercial fire protection and sprinkler networks. It installs directly into wet, dry, preaction, or deluge piping systems to form a rigid, leak-resistant joint that maintains structural integrity under high operational pressures.

This component satisfies the rigorous system design and installation parameters governed by NFPA 13 for the installation of sprinkler systems. By providing a secure mechanical lock that resists joint deflection and angular movement, it complies with strict industry safety codes and helps facility managers maintain fully code-compliant, pressure-tested fire suppression infrastructure.

• Ductile Iron Construction: Manufactured from high-strength ductile iron to deliver exceptional structural durability and corrosion resistance in demanding industrial environments.
• Rigid Locking Design: Features an engineered grooved profile and pipe-gripping technology that locks pipes securely in alignment, preventing unwanted joint movement.
• High-Pressure Integrity: Maintains a tight, leak-resistant seal designed to withstand system pressure fluctuations and operational stresses.
• Installation Versatility: Integrates seamlessly into both new installations and existing fire sprinkler retrofits across multiple pipe materials, including steel and galvanized piping.
• Standard Compliance: Fully UL Listed and FM Approved for fire protection applications, satisfying ASME B31 requirements.

Contractors and facility managers must verify all local Authority Having Jurisdiction (AHJ) requirements and consult the manufacturer's engineering design manuals for proper torque specifications and gasket compatibility prior to field installation.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)