deluge check valve

ZSFM model deluge alarm valve adopt the principle of diaphragm and non-return, when the pipeline pressure which around diaphragm reach to balance,diaphragm will be in a closed position, when water supply system pressure exceed pipeline pressure,diaphragm will auto open a one-way check valve, and it can composed with other accessaries and become kinds of deluge alarm fire extinguisher systems.This type deluge alarm valve is widely used in hospital,hotel, market,factory,airport,entertainment venue,library,gym,convention center etc.

Main techincal parameter

1.Rated working pressure: 1.2-1.6Mpa

2.Sealing test pressure: 2.4-3.2Mpa

3.Water supply pressure range: 0.14-1.6Mpa

4.Pipeline aire pressure range: 0.3-0.5Mpa(dry type systems)

5.Alarm capability: DN100,150,within 15S,DN200 within 60S

6.The pressure of alarm oral area:  ≥0.05Mpa

Pictures