213113 – Electric-Drive, Centrifugal Fire Pumps

Include bronze check valve with 2.4-mm (3/32-in.) orifice in clapper or ground-face union with noncorrosive diaphragm having 2.4-mm (3/32-in.) orifice. Full-Service Fire-Pump Controllers: First option in first subparagraph below is full-voltage starting; second through seventh are reduced-voltage starting. ................
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