Pre-action alarm valve group

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Pre-action alarm valve group

Category: Fire alarm valve series Tag Fire alarm valve series

Nominal diameter and rated working pressure: DN100, DN150 1.6MPa
Flange outer diameter and flange screw hole pitch diameter: φ220, φ285, φ340 φ180, φ240, φ295
Number of screw holes, hole diameter and pre-action height: 8*18φ, 8*φ22, 12*φ22 625, 705, 835

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