VIKING ALARM CHECK VALVE MODEL J-1 - 4"

Viking Alarm Check Valve Model J-1 ( 4" / 100mm )

DESCRIPTION:
The Viking Model J-1 Alarm Check Valve serves as a check valve by trapping pressurized water above the clapper and preventing reverse flow from sprinkler piping. The valve is designed to initiate an alarm during a sustained flow of water (such as the flow required by an open sprinkler) by operating an optional water motor alarm and/or alarm pressure switch. The valve is made suitable for use on variable pressure water supplies by adding the optional retard chamber to the standard trim.

Features:
• 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

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