Issue A B, Outdoor protective Tyco nozzle
Issue A, Issue B Nozzles are mounted outdoors, combined with Hochiki addressable fire alarm cabinets Instructions for using IRIS fire alarm centers combined with Tanda UK fire alarm devices
Issue A B-The Issue A and B outdoor protective Tyco nozzles are designed to spray water on window glass at a specified distance and nozzle position with a minimum discharge pressure of 7 psi (0.48 bar) used to system protection to avoid exposed fire on the outside of buildings.
Issue A
Issue A is often used in areas with moderate light exposure, they have relatively narrow coverage and spray water across the horizontal line of windows placed on each floor.
Issue B
Issue B has a larger nozzle hole diameter, often used in environments where wide coverage is required, they spray water horizontally, protecting multi-level windows in a row. The outdoor protective nozzles are coated with an anti-corrosion coating. However, users should ask for advice on suitable materials for each use environment to avoid influences such as temperature, chemical concentration and gas velocity of the surrounding environment.
Specifications Issue A B-Tyco nozzle for outdoor protection
Qualified: UL, FM
Maximum working pressure: 12.1 bar (175 psi)
Issue A nozzle size: 1/2 inch NPT (DN15).
Issue B nozzle size:
+ 1/2 inch NPT (DN15) for nozzles with spray flow K=5.76
+ 3/4 inch NPT (DN20) for nozzles with spray flow K=8.64 and K=12.39
Minimum flow pressure: 7 psi (0.48 bar).
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