Landscape · L-2QFFK

Irrigation Valve Box and Piping Assembly

Materials

Elements

Waterproofing / Flashing Connections / Plates

About this detail

An automatic irrigation control valve sits inside a standard plastic valve box resting on precast concrete pavers over a six-inch minimum depth of three-quarter-inch washed gravel. The assembly connects to schedule 40 PVC mainline and lateral lines using schedule 80 PVC fittings, nipples, and female adapters. Schedule 80 PVC unions are installed on both sides of the control valve, accompanied by a matching PVC ball valve and a Nibco brass gate valve with a handwheel. Waterproof wire connections and coiled control wires with identification tags are housed within the box, with control wires taped to the mainline every ten feet. Green valve boxes and lids are installed in lawn areas, while tan boxes and lids are used in planting beds, limiting installations to two one-inch valves or one larger valve per box.

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