The ZSFZ Model Alarm Check Valves are designed for use in applications where the temperature is maintained above freezing and intended for use in wet pipe (automatic sprinkler) fire protection systems. They are installed vertically,and they are designed to automatically actuate electric and/or hydraulic alarms when there is a steady flow of water into the system that is equivalent to the discharge rate of one or more sprinklers.
The ZSFZ Model Alarm Check Valves are designed for use in applications where the temperature is maintained above freezing and intended for use in wet pipe (automatic sprinkler) fire protection systems. They are installed vertically,and they are designed to automatically actuate electric and/or hydraulic alarms when there is a steady flow of water into the system that is equivalent to the discharge rate of one or more sprinklers.
Material | Body | Ductile iron |
Clapper | SS304 w/NBR | |
Pipes | SS304 | |
Ball valve & strainer & check valve | Brass | |
Water motor gong | SS304 | |
Working pressure | 12 bar | |
Sealing testing pressure | 24 bar | |
Applicable temperature | 4°C to 70°C | |
Installation | Vertically | |
Flow switch contact capacity | DC24V,0.5A | |
Connection | Flange × Flange | |
Available Size | DN80 thru DN250 (3” thru 10”) |
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