Plumbing · I-23Y56

Drip Zone Flush Valve Assembly

Materials

Reinforced Concrete Steel Stainless Steel

Elements

About this detail

An irrigation drip zone flush valve assembly housed in a seven-inch round specification-grade valve box with a lid branded 'FV' set above finish grade. The assembly connects to a PVC schedule forty manifold pipe through a polyvinyl chloride slip-to-threaded reduction elbow and a schedule eighty nipple. A one-half-inch polyvinyl chloride schedule eighty threaded ball valve controls flow, accompanied by a brass hose and pipe adapter secured with stainless steel clamps and an appurtenance purple identification tag. The valve assembly is stabilized by a number three three-eighths-inch by twenty-four-inch rebar stake driven into the subgrade. A five-to-six-inch bed of three-quarter-inch crushed gravel lines the bottom of the box beneath landscape fabric, with the valve box set one-half inch above finished grade in turf areas or two inches above soil level in shrub areas.

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