Romac 268-049031 End Cap 4 Inch Wide Range Restrained

Product Description

The ROMAC 268-049031 is a 4-inch wide-range restrained end cap designed to seal plain-end pipe for temporary or permanent service. Part of the Alpha series, this fitting accommodates pipe material transitions from IPS PVC through cast iron, making it a versatile tool for testing, blow-off, and line flushing applications as well as permanent pipe-end sealing. The ductile iron casting components meet ASTM A-536 grade 65-45-12. Gripping teeth are machine sharpened and heat treated for positive restraint. The fitting accommodates up to 4 degrees of deflection and carries NSF 61 and NSF 372 certifications for use in potable water systems.

This end cap is suited for municipal water and sewer contractors, utility crews, and plumbing professionals working on new installation, repair, or maintenance of buried or above-grade pipe systems. It is designed for use on plain-end pipe and serves multi-purpose roles across residential, commercial, and light municipal projects. The wide pipe-range design reduces the need to stock multiple fittings for different pipe outside diameters within the 4-inch nominal size range.

Key Features

• Restrained joint design holds under pressure for testing, flushing, and permanent installation
• Accommodates up to 4 degrees of deflection for misaligned or offset pipe ends
• All cast components (end rings, center ring, bolt guides) are ductile iron meeting ASTM A-536 grade 65-45-12
• Gripping teeth are machine sharpened and heat treated for reliable pipe engagement
• Xylan 1424 coating on metallic components provides corrosion resistance
• Gasket options include SBR (water and sewer, NSF 61 classified by UL) or NBR (water and sewer, NSF 61 certified)
• 304 stainless steel hardware; manufactured in the USA

Compatibility

Designed for use on 4-inch plain-end pipe spanning IPS PVC through cast iron pipe outside diameters. Suitable for water and sewer service in systems requiring NSF 61 and NSF 372 compliance.

Installation Notes

Installation is typically performed by licensed plumbers or utility contractors following local plumbing codes and AWWA guidelines. Isolate the pipeline and depressurize the system before fitting installation. Ensure the plain pipe end is clean and free of burrs, debris, or coating buildup that could compromise the gasket seal. Torque bolts evenly in a cross pattern to the fitting manufacturer specifications printed on the product documentation; do not use impact tools on joint bolts.