brass fire sprinkler 1.Type:pendent,upright,sidewall 2.Material:Brass. 3.Size:1/2" 3/4" brass fire sprinkler1. Sprinkler material: Bronze2. Sprinkler thread: 1/2",3/4"3. Flow coefficient: 80+-44. Temperature:57, 68, 79 or 93degree.5. Sealing test pressure:3Mpa6. Type include:Conventional, Upright, Pendent, Sidewall upright, Sidewall horizionalSidewall pendent and so on. brass fire sprinkler