K5.6(80), K8.0(115) ½” NPT (15 mm) ¾” NPT (20 mm) 57 ̊C(135 ̊F), 68 ̊C(155 ̊F) 79 ̊C(175 ̊F), 93 ̊C(200 ̊F) 141 ̊C(286 ̊F)K Factor 
Thread size Quick response Response Brass,Chrome Finishes Temperature
Upright Sprinkler / Quick response model DY-3433 / DY-3423
During a fire, the heat-sensitive liquid expands in its glass bubble, and the bubble breaks, so the water is sprayed evenly on the fire through a sprinkler.
This type of sprinkler can work at different temperatures (57, 68, 79, 93) ° C.
Mounted in locations without suspended ceilings with the deflector pointing upwards. The water hits the deflector and sprays downwards with a conical expansion. It can be used for wet, dry, and pre-action systems.
It also has TSE – UL – FM – GOST – CE – LPCB standards.
Certificate: (Click to view)
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approval guide