Asc 390211142 Gruvlok Rigidlite Grooved Coupling 4 in 300 Psi

Product Description

The ASC Engineered Solutions 390211142 is a Gruvlok 7400-E RigidLite grooved pipe coupling rated for 300 psi working pressure in a 4-inch pipe size. Constructed from ductile iron, this rigid-style coupling joins grooved-end pipe segments to create a fixed, non-articulating joint suitable for mechanical piping systems. At 3.57 pounds, it is designed for fast field assembly without welding or threading. Licensed plumbers, pipefitters, and mechanical contractors install this coupling on fire protection, HVAC hydronic, and industrial piping systems where a rigid, high-pressure connection is required.

The 390211142 fits 4-inch grooved pipe and is appropriate for both new construction and retrofit piping installations. It is commonly used in commercial and industrial settings where roll-grooved or cut-grooved pipe ends are present. Typical applications include chilled water distribution, condenser water lines, fire suppression mains, and process piping where maintaining pipe alignment under pressure is critical. The rigid design resists angular deflection, making it well suited for straight-run piping sections that require structural continuity at the joint.

Key Features

• Rigid coupling design maintains fixed pipe alignment with no angular deflection
• Rated to 300 psi working pressure for demanding hydronic and fire protection applications
• Ductile iron construction provides high tensile strength and impact resistance
• 4-inch pipe size fits standard roll-grooved and cut-grooved pipe ends
• Grooved mechanical joining eliminates welding and threading for faster installation

Compatibility

Designed as an OEM-style grooved mechanical coupling for 4-inch grooved-end pipe systems conforming to standard groove dimensions for that pipe size.

Installation Notes

Installation should be performed by a licensed pipefitter or plumber familiar with grooved mechanical piping systems. De-pressurize and drain the piping system fully before removing or replacing any coupling. Inspect pipe ends to confirm groove dimensions and condition meet manufacturer specifications before assembly. Consult applicable mechanical codes, including NFPA 13 for fire protection systems or local plumbing and mechanical codes, for inspection and testing requirements after installation.