It is used to provide mechanical and electrical alarms with water flow in unheated areas such as garages, warehouses, and parking lots where the temperature is expected to fall below 4°C. Due to the possibility of water freezing in systems where this valve is used, there is compressed air or nitrogen gas ahead of the clapper of the valve. The dry alarm valve's flap is kept closed by the pressure in the installation. When one or more sprinklers are turned on, the air pressure in the installation drops, and pressurized water enters the system by lifting the flap. The pressure switch and water alarm gong are activated by the flow of water and provide electrical and mechanical alarms to the system.
Internationally Approved Product
ULListed
FMApprovedIt is a bell that operates with the flow of water and reports that a fire has started. It can be mounted on the wall or on the alarm valve. It can be used indoors or outdoors.
Material: Corrosion-resistant aluminum alloy
Water Inlet: ¾” BSP
Drain: 1” BSP
Working Pressure: 300 PSI
TYCO
VIKING
Internationally Approved Product
ULListedFMApprovedIt is a bell that operates with the flow of water and reports that a fire has started. It can be mounted on the wall or on the alarm valve. It can be used indoors or outdoors.
Material: Corrosion-resistant aluminum alloy
Water inlet: ¾” bsp
Drain: 1” bsp
Working Pressure: 300 PSI
TYCO
VIKING
Internationally Approved Product
ULListedFMApprovedIt is used to provide electrical alarms to the system by detecting pressure drops or increases in the wet alarm valve. The maximum pressure adjustment range is 4-20 psi.
Operating Temperature: -40°C - +71°
Connection: ½” NPT
Working Pressure: 300 PSI
TYCO
VIKING
Internationally Approved Product
ULListedFMApprovedAccelerates the opening of the dry alarm valve by exhausting pressurized air.
Dimensions: ½” npt
Connection Type: Threaded
Water Inlet Pressure: 250 PSI
Max. Air - Nitrogen Pressure: 27-58 PSI
TYCO
VIKING
Internationally Approved Product
ULListedFMApprovedProvides for the adjustment of air or nitrogen gas pressure in the system.
Air Inlet-Outlet Diameter: ½” NPT
Connection Type: Threaded
Max. Air- Nitrogen Pressure: 27-58 PSI
TYCO
VIKING
