wet alarm valve 1.sprinkler system 2.DN100,125,150,200 3.working pressure:1.2mpa 4.material:cast iron,brass,stainless steel

wet alarm valve top quality automatic and manual

Material:

1.valve cap:cast iron

2.valve body:cast iron

3.valve seat:brass

4.other parts:stainless steel

Nominal diameter: 100mm, 125mm,150mm, 200mm

Flow coefficient :    15~60 (L/min)Nominal working pressure: 1.2MPaStrength test pressure: 4.8MPa

Friction drag: < 0.07Mpa

alarm bell  :  >80db

 Suitable temperature:4~80°C