The ZSFZ model Wet Alarm Check Valves(DN80 to DN250) are used in wet pipe fire sprinkler systems. They primarily serve a dual purpose in that they prevent a reverse flow of water through their bodies (non-return) and also provide for the use of a hydraulic fire alarm which is not dependent upon an electrical power supply for its operation.
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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1) Ductile iron construction valve body,less weight and extra strength.
2) Easy maintenance just require to disassemble the valve cover .
3) The all moving parts can be serviced without removing the valve from the installed position.
4) Simple design for easy installation and operation.
5) Vertical installation.
6) CCCF certificated.
