MCV (Main Control Valve) Rangkaian adalah rangkaian sistem sebagai pemberi notifikasi suara Alarm Gong saat sprinkler sistem bekerja. Satu set rangkaiannya terdiri dari :
– Alarm Check Valve
– Vertical Trim Set
– Water motor alarm gong
Additional :
– Retard Chamber
– Pressure switch (suppervisory to Fire Alarm)

• Ductile iron body for less weight and extra strength.
• Rubber-faced clapper hinged to access cover for quick removal and easy servicing.
• All moving parts can be serviced without removing the valve from the installed position.
• With the cover/clapper assembly removed, clapper rubber replacement requires removal of only
one screw.
• External by-pass trim to minimize clapper movement and false alarm.
• Trim allows installation of optional non-interruptible pressure switch to activate an electric alarm panel and/or remote alarm.
• Can be installed on constant or variable pressure water supplies.
• Can be installed vertically or horizontally, with the access cover facing up.
• Valve housing tapped for inlet and outlet pressure gauges, alarm devices, and system main drain.
• Trim includes alarm test valve for testing alarms without reducing system pressure.