Fire hydrant valve 52, type ZH-52, aluminum, with an aluminum cap, mark B S-AA-ZH52-NA-B

The ZH-52 fire hydrant valve is a water intake point in fire-fighting water supply systems. It is mounted in a metal casing with a lock that opens with the bow of a fire ax or only in justified cases without a casing. The ZH-52 valve is also an accessory of internal hydrants. Pressure 16 bar, nominal diameter 50mm.