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The ASC Engineered Solutions 390017366 is a grooved reducing tee designed for use in piped fluid systems where a branch line transitions to a smaller diameter than the main run. Manufactured from ductile iron with a painted finish, this fitting weighs 6.71 pounds and accommodates a 3-inch main run with a 2-inch branch outlet. It is installed using standard grooved coupling hardware and is a common component in fire protection, HVAC hydronic, and industrial piping systems. Licensed pipefitters and mechanical contractors typically handle installation.
This grooved reducing tee is suited for commercial and industrial piping installations requiring a reduction in branch line diameter. The Gruvlok 7061 series grooved fittings are used in systems where quick assembly, reliable sealing, and standard grooved-end coupling compatibility are required. Typical applications include fire suppression headers, chilled water and hot water hydronic loops, and process piping layouts that call for a reducing branch connection.
Designed as an OEM-style grooved reducing tee for use with standard grooved piping coupling systems in 3-inch main by 2-inch branch configurations.
Installation is performed by licensed pipefitters or mechanical contractors following applicable piping codes such as NFPA 13 for fire protection or ASME B31.9 for building services piping. Depressurize and drain the piping system fully before disassembly or fitting installation. Grooved fittings require properly cut or roll-grooved pipe ends that conform to the coupling manufacturer's groove specifications. Inspect the gasket and housing before assembly to ensure a leak-free joint.
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