A high-density polyethylene pipe penetrates an outside below-grade wall through a mechanical sleeve seal anchored with an integrated wall anchor. The pipe connects to a steel pipe assembly via a 150-pound butt-fused flange adapter with a gasket. The inline assembly includes a butterfly valve, a 1-inch vent, and a 1-inch drain that continues with a 3/4-inch hose connection. The entire penetration is detailed for a building or tunnel below grade, referencing a separate mechanical sleeve seal specification.
OUTSIDE WALL HDPE WALL ANCHOR HDPE / 150# BUTT FUSED 1" DRAIN CONTINUES WITH 3/4" HOSE CONNECTION STEEL PIPE BUTTERFLY VALVE 1" VENT GASKET 150# FLANGE ADAPTER BUILDING OR TUNNEL BELOW GRADE MECHANICAL SLEEVE SEAL, REFER TO SLEEVE SEAL DETAIL AND SPECIFICATION.
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