Rapidrop Model C Alarm Check Valve 4 Inch

Rapidrop Model C Alarm Check Valve is a double-seated clapper check valve with a grooved seat design that ensures positive water flow for alarm operation and is designed for installation in a wet pipe sprinkler system. External bypass prevents false alarms under all supply pressure conditions. In the event of variable pressure conditions, a false alarm is prevented with the provision of retard chamber, thus the design allows for installation under both variable and constant supply pressure conditions.