The extended coverage sprinklers are designed to cover a wider are than standart type sprinklers. For positioning in lower hazard areas there are pendent and sidewall types for extended coverage. The heat  resistant  bulbs can be standart or quick response types.

Applications Specific applications
Bulb Glass/ 3 mm
K Factor K5.6(80), K8.0( I 15)
Threaded  Dimension 1/i” NPT (15 mm), ¾” NPT (20 mm)
Response Quick Response
Finishes Brass, Chrome, White
Temperature Rating 57°C( I 35°F), 68°C( I 55°F), 79°C( I 75°F)