Technical data

1.1.4 Model H Deluge Riser Assembly

The Reliable Model H 1-1/2” (40mm) Deluge Riser Assembly is an electrically actuated system that

utilizes a normally closed, quick-opening hydraulically-operated diaphragm actuated solenoid as the

main system control valve. In the normal condition (de-energized), water pressure is held at the sole-

noid valve inlet. Upon receipt of a signal from the electric detection system, the release panel opens

(energizes) the solenoid valve allowing water to flow to open sprinklers, nozzles, or other discharge

devices in the protected area. Alarm devices are activated by the System Sensor Model EPS 10-1 pres-

sure switch (provided with assembly) upon the flow of water into the sprinkler system piping.

Approvals and technical data for the Model H Deluge Riser Assembly can be found on Reliable Auto-

matic Sprinkler Company Bulletin 507.

Figure 5