There is no valve opening and closing electrical signal device on the top of the valve. When the valve is closed by mistake by 20%, the electrical signal will be sent to the fire control center.
This butterfly valve is the best accessory for automatic sprinkler system.
There is no valve opening and closing electrical signal device on the top of the valve. When the valve is closed by mistake by 20%, the electrical signal will be sent to the fire control center.
This butterfly valve is the best accessory for automatic sprinkler system.