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The ASC Engineered Solutions 390018521 is a Gruvlok grooved painted reducing tee designed for use in grooved piping systems where a main run must branch to a smaller outlet. Sized at 8 inches by 3 inches, this fitting accepts grooved pipe ends on all three ports, allowing a fast, tool-friendly mechanical connection without welding or threading. Constructed from ductile iron and finished with a protective paint coating, the fitting weighs 32.5 pounds per unit. It is installed by licensed pipefitters and mechanical contractors working on fire protection, HVAC, and industrial piping systems.
This reducing tee is suited for commercial and industrial applications where a grooved mechanical joining system is specified. The 8-inch run ports pair with a 3-inch branch outlet, making it a standard choice for distributing flow to a smaller branch line. The painted exterior finish provides corrosion resistance appropriate for interior mechanical room environments and similar service conditions. Pipefitters working on sprinkler systems, chilled water loops, or process piping will encounter this fitting in both new construction and retrofit projects.
Designed as an OEM-style grooved fitting for use with standard grooved mechanical coupling systems on ductile iron or steel pipe in commercial and industrial piping installations.
Installation should be performed by a licensed pipefitter or mechanical contractor in accordance with applicable mechanical codes and the grooved coupling manufacturer's assembly instructions. Isolate and depressurize the piping system completely before cutting in or removing any existing fittings. Verify that pipe groove dimensions meet the specified tolerances for the coupling being used, as improper grooves are a leading cause of joint failure. Gaskets and couplings are not included and must be selected to match the pipe material, service fluid, and operating pressure of the system.
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