пожаротушения

fire sprinkler different type: pendant type, upright type, ordinary type, sidewall horizontal type. Concealed type specification:(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) flux coefficient: 80,115 (6) large coverage glass bulb sprinkler (7) 20mm diameter model: T-ZSTX20(pendent): installed downward, protected area: 4.9m2 x 4.9m2 Flow calculation: Q=K(10P)0.5 ZSTZ-68degree to be installed with the water splashing tray upward ZSTX-68degree to be installed with the water splashing tray downward ZSTBS-68degree to be installed in with wall-mounted horizontal way ZSTB-68degree to be installed in sidewall way. ZSTDY-68degree also known as concealing type sprinkler with a round cover outside which can help to maintain the harmony of its surroundings. There are two different nominal diameter, that is, DN 15mm, connect thread R1/2”, flow coefficient 80, rated W.P 1.2Mpa DN 20mm, connect thread R3/4”, flow coefficient 115, rated W.P 1.2 Mpa