Asc Engineered Solutions 308003805 Companion Flange 5 in

Product Description

The ASC Engineered Solutions 308003805 is a 5-inch, Class 125 black cast iron companion flange designed for use in piping systems that require a secure, leak-resistant mechanical connection at pipe joints. Cast iron construction provides the durability and dimensional stability required in commercial and industrial plumbing, HVAC hydronic, and fire protection piping installations. The black coating offers corrosion resistance suited for standard service environments. At 13.15 pounds, this flange is built to handle the mechanical demands of Class 125 pressure-rated service.

This companion flange is intended for use in piped systems where two flanged pipe ends must be bolted together to form a removable, pressure-rated joint. Typical applications include hydronic heating and cooling systems, industrial water service, and commercial plumbing distribution piping. The 5-inch size fits standard 5-inch pipe, and the Class 125 pressure rating aligns with common service conditions in building mechanical systems. Installation is typically performed by licensed plumbers or pipefitters on both new construction and retrofit piping projects.

Key Features

• 5-inch fitting size for standard 5-inch pipe connections
• Class 125 pressure rating suitable for standard mechanical piping service
• Cast iron construction for durability and dimensional stability
• Black coating for corrosion resistance in standard service environments
• Domestically sourced product
• Companion flange type for bolted pipe joint assemblies

Compatibility

Designed as an OEM-style replacement and standard-service companion flange for Class 125 cast iron flanged piping systems using 5-inch pipe.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or ASME B16.1 flanged fitting standards. Shut off and depressurize the piping system fully before removing any existing flange or beginning installation. Use appropriate gasket material rated for the service fluid and pressure class when assembling the bolted joint. Inspect flange faces for damage or debris before torquing fasteners to ensure a proper seal.