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The ABI FOUNDRY 1577 is a service weight cast iron wye fitting designed for drain, waste, and vent (DWV) piping systems. It features a 3 x 2 inch nominal configuration with a spigot x hub x hub end style, allowing it to branch a 2-inch line off a 3-inch main run. The fitting is manufactured domestically from cast iron, which provides durability and long service life in both above-ground and below-ground DWV installations. Licensed plumbers and pipefitters install this type of fitting when establishing branch connections in sanitary drainage systems.
This wye fitting is suited for residential and light commercial plumbing applications where service weight cast iron pipe and fittings are specified. The spigot inlet connects into an existing hub, while the two hub outlets accept standard service weight cast iron pipe. It is commonly used in sanitary drain, waste, and vent assemblies where a cleanly branched flow path is required. The temperature rating of 32 to 212 degrees F makes it appropriate for standard drain and waste service conditions.
Designed as an OEM-style replacement or new-installation fitting for service weight cast iron DWV piping systems using 3-inch and 2-inch nominal pipe sizes.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and ensure the drain system is depressurized before cutting into existing lines. Cast iron service weight fittings of this type are typically joined using lead and oakum or approved mechanical couplings. Support all piping per code requirements to prevent stress on the fitting joints.
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