Abstract:
A discharge head for use in a fire protection system wherein the head is normally closed and a fire responsive device is adapted to open same in response to a first predetermined fire condition. A second fire responsive device opens the head in response to a second predetermined fire condition and a control selectively controls the operation of the first and second fire responsive devices.
Abstract:
A double rate flow controller including a means for permitting fluid flow at a first high flow rate, a means for reducing the first flow rate to a second lower flow rate and a means for regulating the volume of water passing through the flow controller during the high flow condition before the high flow rate is terminated and the low flow rate begins.