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The ASC ENGINEERED SOLUTIONS 390060705 is a Gruvlok FIG 7307 HDPE Transition Coupling designed to connect grooved-end pipe systems to high-density polyethylene pipe in commercial and industrial piping applications. Constructed from ductile iron with a rust-inhibiting orange paint finish, this coupling accommodates a 2-inch nominal pipe size with a 2.375-inch OD and carries a temperature rating of -30 to 230 degrees F. It ships with a Grade E green EPDM gasket and a complete hardware set, making it a field-ready unit for licensed plumbers and pipefitters handling grooved mechanical joint installations.
This coupling is intended for use with HDPE pipes in grooved piping systems, providing a reliable mechanical transition at points where HDPE meets grooved ductile iron or steel pipe. Typical installation scenarios include commercial building water distribution, industrial process piping, and fire protection systems where mixed-material pipe runs require a dependable grooved transition fitting. The 5.875-inch overall length and 3.125-inch body thickness are suited to standard 2-inch grooved installation envelopes.
Designed for use with HDPE pipes at 2-inch nominal size with a 2.375-inch OD in grooved mechanical piping systems per the FIG 7307 series specification.
Installation should be performed by a licensed plumber or pipefitter familiar with grooved mechanical joint systems. Depressurize and isolate the pipe section before assembly, and confirm pipe OD and groove dimensions meet the coupling specification prior to installation. Lubricate the EPDM gasket with an approved pipe lubricant and torque bolts evenly to achieve uniform gasket seating. Follow applicable IPC and local plumbing code requirements for mechanical joint piping in the specific service environment.
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