ANVIL CLASS 150 PIPE UNION - 2" BLACK STEELThe Anvil 8700163200 is a 2" Class 150 malleable iron ground joint pipe union with a black steel finish. Ground joint unions let two threaded pipe ends be joined and later separated without unscrewing back through the entire run -- essential for serviceable connections, replacement fittings, and any installation where future disassembly is expected.
- Trade size: 2"
- Finish: Black Steel
- Class 150 pressure rating
- Female NPT threads on both ends
- Three-piece ground joint design: nut, tail piece, and union body
- Conforms to ASME B16.39 (malleable iron threaded pipe unions)
- Complies with AAR Manual of Standards and Recommended Practices
- Domestic steel construction
Tip: 2" lines fit commercial gas mains, larger air system mains, and high-volume process piping. Hand-tighten the union nut, then give it a final wrench turn until the ground joint seats firmly -- over-tightening scores the seat and creates weep leaks. Use pipe dope or PTFE tape on the male NPT threads only, never on the union's ground joint seat.