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The ASC ENGINEERED SOLUTIONS 8700163200 is a 2-inch ground joint malleable black iron union designed for joining and disconnecting threaded pipe sections in low- to medium-pressure piping systems. The ground joint seat provides a metal-to-metal seal that holds up to vibration and repeated assembly cycles better than flat-face unions. National Pipe Taper threads on both ends create tighter, more reliable seals than straight-thread designs. At 3 pounds, this union is a solid, full-weight fitting suited for use in gas, steam, and liquid pipe assemblies. Licensed plumbers and pipefitters install this fitting in commercial and industrial piping runs where future serviceability is required.
This union is used in residential and commercial piping applications including gas distribution, steam heating, and water service lines where a threaded union connection is specified. The black iron finish is standard for gas piping and steam systems. The ground joint design allows the union to be broken and remade repeatedly without damaging the seating surface, making it a practical choice for locations where equipment isolation or future maintenance access is anticipated.
Designed as an OEM-style replacement or new-installation fitting for 2-inch NPT threaded black iron pipe systems in Class 150 gas, steam, and liquid piping assemblies.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and IFGC or IPC requirements. Shut off and depressurize the pipe system completely before disassembly or fitting installation. Apply an appropriate thread sealant or tape rated for the service medium to the NPT threads before assembly. Do not overtighten the union nut, as excessive torque can distort the ground joint seat and compromise the seal.
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