pendent fire sprinkler 1.Orifice Size: 1/2'' ,3/4 2.Temperature Rating: 57, 68, 79, 93 Celsius degree 3.Factory direct sales pendent fire sprinkler(1) rated working pressure: 12 bars(1.2Mpa)(2) airproof test pressure: 24bars(2.4Mpa)(3) strength test pressure: 30bars(3Mpa)(4) thread: 1/2”,3/4”(5) large coverage glass bulb sprinklerNominal operating temperature The maximum ambient temperature ...