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The ASC Engineered Solutions 390171148 is a Gruvlok 7045 painted saddle tee with a female pipe thread (FPT) outlet, designed for grooved piping systems in commercial and industrial mechanical applications. Sized at 3 inches by 1 inch, this ductile iron fitting connects a 1-inch FPT branch outlet to a 3-inch grooved main pipe. It ships factory-painted to provide basic corrosion resistance during storage and installation. Weighing 2.51 pounds, this fitting is a standard component used by pipefitters and mechanical contractors when adding branch connections to existing or new grooved piping runs.
The 390171148 saddle tee is suited for use in hydronic heating and cooling systems, fire protection piping, and general mechanical piping where grooved-end main pipe is specified. It is installed on 3-inch grooved pipe and accepts a 1-inch female pipe thread branch connection for instrumentation, drain, vent, or small-bore service lines. This fitting is appropriate for both new construction and retrofit branch tie-in work on grooved piping systems.
Designed as an OEM-style grooved piping fitting for use with 3-inch grooved-end pipe in mechanical, HVAC, and fire protection piping systems.
Installation should be performed by a licensed pipefitter or qualified mechanical contractor in accordance with applicable codes including ASME B31.9 for building services piping. Depressurize and drain the piping system fully before installing or modifying any branch connection. Verify that the grooved pipe end meets the dimensional requirements for the Gruvlok coupling system before assembly. Do not overtighten the FPT branch connection, as ductile iron threads can be damaged by excessive torque.
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