The dry sprinkler system is designed for use in low temperature areas below +4 ° C, and the outlet side is filled with pressurized gas and nitrogen to prevent freezing of the lines.

Dry alarm valve body Size: 2"-6" Assembly type: flange x flange, flange x groove, groove x groove Assembly direction: vertical Working pressure: 175-250 psi Certification: FM, UL, ULC, VdS

Dry alarm valve pressurizer It is used for alarm acceleration in dry fire suppression systems. Size: 1⁄2” npt Assembly Type: Thread x Thread Inlet pressure: 250 psi Air (or nitrogen) pressure: 27-58 psi Certification: FM, UL, ULC, VdS

Air pressure stabilizer It is used to regulate system pressure. Size: 1⁄2” npt Assembly Type: Thread x Thread Air (or nitrogen) pressure: 27-58 psi Certification: FM, UL, ULC, VdS

      When a fire occurs, the nozzle (1) is opened, and the compressed air in the pipe is sprayed from the nozzle, causing the pressure on the outlet side to drop, causing the water pressure at the front of the alarm valve to be greater than the pressure at the rear. The valve flap (2) is automatically opened and the pressure water enters. The water supply pipe pushes the remaining compressed air out of the opened nozzle and then sprinkles it. In large systems, the user must use a pressurizer (3). When the alarm valve is opened, the water flow impacts the pressure switch and the hydraulic alarm, so that the pressure switch (4) generates an electronic alarm signal, and the alarm bell (5) emits a mechanical ring to activate the water pump to pressurize the water supply.