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The deluge alarm valve is a one-way valve which can be opened by electric, mechanical or other means to make the water flow into the system automatically in one direction and alarm at the same time.
Type | ZSFG100 | ZSFG150 | ZSFG200 |
Nominal diameter(mm) | DN100 | DN150 | DN200 |
Rated working pressure(MPa) | 1.2 | 1.2 | 1.2 |
Strength test pressure(MPa) | 4.8 | 4.8 | 4.8 |
Friction resistance | <0.07 | <0.07 | <0.07 |
Start time(s) | <15 | <15 | <15 |