Mechanical · M-MQG3B

Direct Buried Gate Valve with Valve Box and Concrete Collar

Materials

Concrete Metal (misc.)

Elements

Stairs

Connections

Bolted Connection

About this detail

A direct-buried gate valve assembly connects to a chilled water main ranging from 4 inches to 12 inches in size. The assembly features an AWWA C515 gate valve with a ductile iron body and mechanical joint ends, supported underneath by a 6-inch thick concrete pad that remains clear of all mechanical joint and flange bolts. A 6-inch SDR-35 PVC conductor pipe centers over the valve and extends to finish grade using an SDR-35 PVC coupling. At the surface, a 6-inch cast iron valve box with a cover marked 'WATER' sets within a concrete collar that is a minimum of 6 inches thick or matches existing pavement thickness. All bolts and exposed metal are coated with brushed-on mastic, and metal parts are encased in polyethylene wrap per AWWA C105.

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